Microchip DSPIC33CH512MP506 User Manual

dsPIC33CH512MP506

Digital Power

Plug-In Module (PIM)

User’s Guide

 2019 Microchip Technology Inc. DS50002853A

Note the following details of the code protection feature on Microchip devices:

YSTEM

CERTIFIED BY DNV

== ISO/TS 16949 ==

• Microchip products meet the specification contained in their particular Microchip Data Sheet.

• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
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and manufacture of development systems is ISO 9001:2000 certified.

®

MCUs and dsPIC® DSCs, KEELOQ

®

code hopping

QUALITY MANAGEMENT S

Trademarks

The Microchip name and logo, the Microchip logo, AnyRate, AVR,
AVR logo, AVR Freaks, BitCloud, chipKIT, chipKIT logo,
CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, Heldo,
JukeBlox, KeeLoq, Kleer, LANCheck, LINK MD, maXStylus,
maXTouch, MediaLB, megaAVR, MOST, MOST logo, MPLAB,
OptoLyzer, PIC, picoPower, PICSTART, PIC32 logo, Prochip
Designer, QTouch, SAM-BA, SpyNIC, SST, SST Logo,
SuperFlash, tinyAVR, UNI/O, and XMEGA are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
and other countries.

ClockWorks, The Embedded Control Solutions Company,
EtherSynch, Hyper Speed Control, HyperLight Load, IntelliMOS,
mTouch, Precision Edge, and Quiet-Wire are registered
trademarks of Microchip Technology Incorporated in the U.S.A.

Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any
Capacitor, AnyIn, AnyOut, BodyCom, CodeGuard,
CryptoAuthentication, CryptoAutomotive, CryptoCompanion,
CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average
Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial
Programming, ICSP, INICnet, Inter-Chip Connectivity,
JitterBlocker, KleerNet, KleerNet logo, memBrain, Mindi, MiWi,
motorBench, MPASM, MPF, MPLAB Certified logo, MPLIB,
MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation,
PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon,
QMatrix, REAL ICE, Ripple Blocker, SAM-ICE, Serial Quad I/O,
SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II, Total
Endurance, TSHARC, USBCheck, VariSense, ViewSpan,
WiperLock, Wireless DNA, and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.

SQTP is a service mark of Microchip Technology Incorporated in
the U.S.A.

Silicon Storage Technology is a registered trademark of
Microchip Technology Inc. in other countries.

GestIC is a registered trademark of Microchip Technology
Germany II GmbH & Co. KG, a subsidiary of Microchip
Technology Inc., in other countries.

All other trademarks mentioned herein are property of their
respective companies.

© 2019, Microchip Technology Incorporated, All Rights Reserved.

ISBN: 978-1-5224-4364-3

DS50002853A-page 2  2019 Microchip Technology Inc.

dsPIC33CH512MP506 DIGITAL

POWER PIM USER’S GUIDE

Table of Contents

Preface ........................................................................................................................... 5

Chapter 1. Overview

1.1 Introduction ..................................................................................................... 9

1.2 Features ......................................................................................................... 9

1.2.1 Test Points ................................................................................................ 10

1.2.2 Electrical Characteristics ........................................................................... 10

1.2.3 Analog and Digital Signals ........................................................................ 11

1.2.4 dsPIC33CH512MP506 DP PIM – PCB Edge Connector .......................... 11

1.3 UART Communication .................................................................................. 12

1.4 Low-Frequency Bode Plot Measurements ................................................... 12

Appendix A. Board Layout and Schematics

A.1 Pinout ........................................................................................................... 15

A.2 Board Schematics ........................................................................................ 17

A.3 PCB Layout .................................................................................................. 19

Appendix B. Bill of Materials (BOM)

B.1 Bill of Materials ............................................................................................. 23

Appendix C. Characterization Data

C.1 Measurement Accuracy Impacts ................................................................. 27

C.1.1 High-Speed Analog Signal Tracking Considerations ................................ 27

C.1.2 Example .................................................................................................... 29

Worldwide Sales and Service .................................................................................... 34

 2019 Microchip Technology Inc. DS50002853A-page 3

dsPIC33CH512MP506 Digital Power PIM User’s Guide

NOTES:

DS50002853A-page 4  2019 Microchip Technology Inc.

dsPIC33CH512MP506 DIGITAL

POWER PIM USER’S GUIDE

Preface

NOTICE TO CUSTOMERS

All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs
and/or tool descriptions may differ from those in this document. Please refer to our website
(www.microchip.com) to obtain the latest documentation available.

Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the page number. The numbering convention for the DS number is
“DSXXXXXXXXA”, where “XXXXXXXX” is the document number and “A” is the revision level
of the document.

For the most up-to-date information on development tools, see the MPLAB
Select the Help menu, and then Topics to open a list of available online help files.

®

IDE online help.

INTRODUCTION

This chapter contains general information that will be useful to know before using the
dsPIC33CH512MP506 Digital Power Plug-In Module (PIM). Items discussed in this
chapter include:

• Document Layout

• Conventions Used in this Guide

• Recommended Reading

• The Microchip Website

• Product Change Notification Service

• Customer Support

• Document Revision History

DOCUMENT LAYOUT

This document provides an overview of the dsPIC33CH512MP506 Digital Power PIM.
The document is organized as follows:

• Chapter 1. “Overview” — This chapter introduces the dsPIC33CH512MP506

Digital Power PIM and provides a brief overview of its various features.

•

Appendix A. “Board Layout and Schematics”

schematics and the board layouts for the dsPIC33CH512MP506 Digital Power PIM.

• Appendix B. “Bill of Materials (BOM)” — This appendix presents the Bill of

Materials for the dsPIC33CH512MP506 Digital Power PIM.

• Appendix C. “Characterization Data” — This appendix provides

characterization data and guidance on sub-circuits of
Digital Power PIM

— This appendix presents the

the ds

PIC33CH512MP506

.

 2019 Microchip Technology Inc. DS50002853A-page 5

dsPIC33CH512MP506 Digital Power PIM User’s Guide

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB® IDE User’s Guide

Emphasized text ...is the only compiler...

Initial caps A window the Output window

A dialog the Settings dialog
A menu selection select Enable Programmer

Quotes A field name in a window or

dialog

Underlined, italic text with
right angle bracket

Bold characters A dialog button Click OK

N‘Rnnnn A number in verilog format,

Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>

Courier New font:

Plain Courier New Sample source code #define START

Italic Courier New A variable argument file.o, where file can be

Square brackets [ ] Optional arguments mcc18 [options] file

Curly brackets and pipe
character: { | }

Ellipses... Replaces repeated text var_name [,

A menu path File>Save

A tab Click the Power tab

where N is the total number of
digits, R is the radix and n is a
digit.

Filenames autoexec.bat
File paths c:\mcc18\h
Keywords _asm, _endasm, static
Command-line options -Opa+, -Opa-
Bit values 0, 1
Constants 0xFF, ‘A’

Choice of mutually exclusive
arguments; an OR selection

Represents code supplied by
user

“Save project before build”

4‘b0010, 2‘hF1

any valid filename

[options]

errorlevel {0|1}

var_name...]

void main (void)
{ ...
}

DS50002853A-page 6  2019 Microchip Technology Inc.

RECOMMENDED READING

This user’s guide describes how to use the dsPIC33CH512MP506 Digital Power PIM.
Other useful document(s) are listed below. The following Microchip document is
available and recommended as a supplemental reference resource:

• “dsPIC33CH128MP508 Family Data Sheet” (DS70005319)

Refer to this document for detailed information on the dsPIC33CH Dual Core
Digital Signal Controllers (DSCs). Reference information found in this data sheet
includes:

- Device memory maps

- Device pinout and packaging details

- Device electrical specifications

- List of peripherals included on the devices

THE MICROCHIP WEBSITE

Microchip provides online support via our website at www.microchip.com. This website
is used as a means to make files and information easily available to customers.
Accessible by using your favorite Internet browser, the website contains the following
information:

• Product Support – Data sheets and errata, application notes and sample

programs, design resources, user’s guides and hardware support documents,
latest software releases and archived software

• General Technical Support – Frequently Asked Questions (FAQs), technical

support requests, online discussion groups, Microchip consultant program
member listing

• Business of Microchip – Product selector and ordering guides, latest Microchip

press releases, listing of seminars and events; and listings of Microchip sales
offices, distributors and factory representatives

Preface

PRODUCT CHANGE NOTIFICATION SERVICE

Microchip’s customer notification service helps keep customers current on Microchip
products. Subscribers will receive e-mail notification whenever there are changes,
updates, revisions or errata related to a specified product family or development tool of
interest.

To register, access the Microchip website at www.microchip.com, click on Product
Change Notification and follow the registration instructions.

 2019 Microchip Technology Inc. DS50002853A-page 7

dsPIC33CH512MP506 Digital Power PIM User’s Guide

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Corporate Application Engineer (CAE)

• Embedded Solutions Engineer (ESE)

Customers should contact their distributor, representative or Embedded Solutions
Engineer (ESE) for support. Local sales offices are also available to help customers.
A listing of sales offices and locations is included in the back of this document.

Technical support is available through the website at:

http://www.microchip.com/support.

DOCUMENT REVISION HISTORY

Revision A (April 2019)

This is the initial version of this document.

DS50002853A-page 8  2019 Microchip Technology Inc.

1.1 INTRODUCTION

The dsPIC33CH512MP506 Digital Power Plug-In Module (DP PIM) is a demonstration
board that, in conjunction with different power boards, showcases the Microchip
dsPIC33CH512MP506 16-Bit Digital Signal Controller (DSC) features. The DP PIM
provides access to the dsPIC33CH512MP506 analog inputs, the Digital-to-Analog
Converter (DAC) output, the Pulse-Width Modulation (PWM) outputs and the General
Purpose Input and Output (GPIO) ports.

The series of Microchip DP PIMs feature different device families, from dsPIC33E to
dsPIC33CK and dsPIC33CH. These devices have different CPU performance levels as
well as peripheral features and functions. However, even if the features and perfor­mance levels are different, all DP PIMs have the same functional card edge connector
pinout to support seamless migration between device families.

1.2 FEATURES

The dsPIC33CH512MP506 DP PIM has the following features, as shown in Figure 1-1.

dsPIC33CH512MP506 DIGITAL

POWER PIM USER’S GUIDE

Chapter 1. Overview

FIGURE 1-1: dsPIC33CH512MP506 DP PIM

1. Microchip dsPIC33CH512MP506 16-Bit DSC (64-pin TQFP package).

2. ICSP™ programming header for the Master core (6-pin, 2.54 mm header).

3. ICSP programming header for the Slave core
(6-pin, 1.27 mm header – not populated).

Note: Both cores can be programmed and debugged through one ICSP interface.

4. On-board LDO with Power Good (PG) function.

5. Solder pad for ground connection.

6. Micro-USB connector.

7. MCP2221A USB to UART/I

8. Power indicator LED (Green).

9. User LED (Red).

10. Board edge connection interface for analog inputs/outputs.

11. Board edge connection interface for PWM outputs, digital peripherals and GPIO ports.

2

C serial converter.

 2019 Microchip Technology Inc. DS50002853A-page 9

dsPIC33CH512MP506 Digital Power PIM User’s Guide

12. Analog input with op amp buffer via test point loop connector; can be used for
Bode plot measurements.

13. Op amp buffer for Bode input.

14. Test point loop for DAC output.

15. Test point to access RD13 (also available on card edge connector pin 12).

16. Test point to access RD15 (also available on card edge connector pin 8).

17. Op amp buffers for medium speed ADC inputs.

18. MEMS oscillator.

Board dimensions are: 51 mm (length) x 38.5 mm (width).

1.2.1 Test Points

Ta bl e 1- 1 lists the test points available on the dsPIC33CH512MP506 DP PIM.

TABLE 1-1: TEST POINTS

Test Point Name Function/Description

TP1, TP2 Bode Measurement Signal Injection Point

TP3 RB2_DAC1_OUT: Digital-to-Analog Converter Output
TP4 Test Point for Debugging: Access to RD13 through 270 Resistor

TP5 General Purpose Test Point Connected to RD15 along with LD2

(Red LED)

1.2.2 Electrical Characteristics

Ta bl e 1- 2 shows the electrical characteristics of the dsPIC33CH512MP506 DP PIM.

TABLE 1-2: ELECTRICAL CHARACTERISTICS

Parameter Value

Input Voltage Range 3.6 V

Current Consumption Minimum 82 mA, Typical 108 mA, Absolute Maximum 200 mA

Power Dissipation Minimum 295 mW, Typical 414 mW, Maximum 1100 mW

Operating Temperature Range -40°C to +85°C

Note: Typical Test Conditions: Ambient Temperature +25°C, Master core running at

90 MIPS, Slave core running at 100 MIPS, all peripherals powered but not enabled,
power-on LED, LD1, active, no USB device or debugger connected.

DC to 10 VDC, Absolute Maximum 16 VDC

DS50002853A-page 10  2019 Microchip Technology Inc.

Overview

1.2.3 Analog and Digital Signals

The dsPIC33CH512MP506 DP PIM ensures good signal integrity and provides all
signals needed to control a power train. These signals are divided into two main
sections: Analog and Digital.

1. Analog Section

The analog section is located at the short segment of the edge connector.
It consists of 17 signals, all referenced to the analog ground. These lines are split
into the following subsections:

• High-Speed Comparator Inputs: RC filtered with corner frequency of 10 MHz
and maximum signal rise/fall time of 33 ns. These lines are designed to be
used with on-chip comparators for signal tracking tasks, such as peak, valley
or zero-cross detections.

• High-Speed ADC Inputs: RC filtered with corner frequency of 2 MHz and
maximum signal rise/fall time of 180 ns. These lines are connected to the
Track-and-Hold (T&H) circuitry of the dedicated ADC inputs and to the
Sample-and-Hold (S&H) circuitry of the shared ADC inputs.

• Medium Speed ADC Inputs: Buffered input lines, RC filtered with corner
frequency of 1 MHz and maximum signal rise/fall time of 360 ns.

• Low-Speed ADC Inputs: RC filtered with corner frequency of 190 kHz and
maximum signal rise/fall time of 1.8 µs.

• 12-Bit DAC Output with Optional On-Board RC Filtering.

Note: RC filtering and series resistance are needed for good signal integrity, and

for reducing EMI issues. Hence, the board can be used for development
purposes under frequent plug-in/out cycles. This decoupling also increases
robustness in case of accidental shorts and EMC issues.

2. Digital Section

The digital section is located at the long segment of the edge connector.
It consists of 31 signals, all referenced to digital ground. These lines are split into
four subsections:

• High-Speed PWM Outputs: Each line has a 75 series resistance.

• Medium Speed GPIO: Each line has a 270 series resistance.

• Programing/Debugging Lines: Each line has a 100 series resistance.

• Communication Lines (SPI): Each line has a 75 series resistance.

Note: The range of the digital I/Os allows access to other peripheral functions of

the populated DSC, such as communication interfaces like I
Single-Edge Nibble Transmission (SENT), Controller Area Network (CAN),
input capture, output compare, Combinatorial Logic Cells (CLC) and more.
Please refer to the device data sheet for further information on available
functions.

2

C, SPI, UART,

1.2.4 dsPIC33CH512MP506 DP PIM – PCB Edge Connector

The dsPIC33CH512MP506 DP PIM has an edge connector compatible with any
application board that provides a mating socket.

The mating socket type is Samtec, Inc.: MECF-30-01-L-DV-WT.

 2019 Microchip Technology Inc. DS50002853A-page 11

dsPIC33CH512MP506 Digital Power PIM User’s Guide

1.3 UART COMMUNICATION

The on-board USB to UART serial bridge enables easy serial connection to PCs.
The USB port can provide power to the Digital Power PIM and allows the user to
communicate with the dsPIC

The USB driver package and software tool support of the MCP2221A serial converter
also offers free terminal software for I
generic API drivers for custom software development. Please visit the MCP2221A
product web page for more details (www.microchip.com).

1.4 LOW-FREQUENCY BODE PLOT MEASUREMENTS

The dsPIC33CH512MP506 device, along with an additional on-board circuitry, allows
Bode plot measurements to be performed without the need for an isolation transformer.
The transformer might still be required if the injected signal tends to be at a very low
frequency (for instance, in case of Power Factor Correction (PFC) applications).

Perform the following steps:

1. Solder the 150 resistor from position R74 to R94. Make sure that the

RD10_S1AN13_IN line is not driven by any other low-impedance source.

2. Run the power stage in Open-Loop mode with a fixed duty cycle.

3. Connect the Bode 100 AC output to TP1 and TP2. The on-board operational
amplifier will add a V
needed.

4. Connect RB2_DAC1_OUT to CH2 of the Bode 100.

5. Use the S1AN13 input to sample the signal from Bode 100 in every PWM cycle
at Frequency Switching (f

6. Remove the V
is needed).

7. Add sampled AC signal to the nominal duty cycle (PDCx) (action in firmware is
needed).

8. Use a second dedicated ADC core input (ANx) to sample the output of the plant
at FSW. The output can be:

• Output voltage.

• Average coil current sampled at T

9. Duty cycle input and plant output are converted into an analog signal using
RB2_DAC1_OUT.

The measured transfer function is the plant (power stage and digital modulator), after
scaling and ADC sampling, versus digital duty cycle input (PDCx).

DD/2 offset to regain a signal with no DC value (action in firmware

®

Digital Signal Controller (DSC).

2

C Master and Slave emulation, as well as

DD/2 (1.65V) offset. In this case, no injection transformer is

SW) (action in firmware is needed).

ON/2, where TON is the switch-on time.

Note: Due to run-time delays of Sample-and-Hold circuits and conversion time of

ADC and DAC, this measurement is only recommended for low-frequency
measurements: a maximum two decades below sampling frequency.

DS50002853A-page 12  2019 Microchip Technology Inc.

Overview

Power Stage

PWM

V

OUT

VIN

Nominal

Duty RaƟo

Output

+

Signal InjecƟŽŶ

S1AN13–

V/2

Remove Oīset

In

Bode 100

In

DAC1

Bode 100

Generator

V/2

50R

CH2

CH1

V

BODE

G = 2

VÃÖ =

V/2 + 2 x VÊ

Output

Power Stage

PWM

VOUT

V

IN

Compensator

Output

Bode 100

Generator

In

Bode 100

In

V/2

Signal

InjecƟŽn

ANx

–

V/2

Remove Oīset

Min/Max

Clamp

Reference

S1AN13

+

DAC1

50R

CH2

CH1

V

BODE

VÃÖ =

V/2 + 2 x VÊ

Output

Figure 1-2 and Figure 1-3 show examples of schemes of plant and closed-loop

measurements, respectively.

FIGURE 1-2: SCHEME OF PLANT MEASUREMENT

FIGURE 1-3: SCHEME OF CLOSED-LOOP MEASUREMENT

 2019 Microchip Technology Inc. DS50002853A-page 13

dsPIC33CH512MP506 Digital Power PIM User’s Guide

NOTES:

DS50002853A-page 14  2019 Microchip Technology Inc.

dsPIC33CH512MP506 DIGITAL

POWER PIM USER’S GUIDE

Appendix A. Board Layout and Schematics

This appendix contains the pinout, the schematics and the board layouts for the
dsPIC33CH512MP506 DP PIM.

• Pinout

• Board Schematics

• PCB Layout

A.1 PINOUT

Pinout and electrical parameters are shown in Ta bl e A -1 .

TABLE A-1: PINOUT AND ELECTRICAL PARAMETERS

Edge

Name

GND_A 1 20 Analog Ground —

GND_A 2 20 Analog Ground —

RB2_DAC1_OUT 3 33 DAC Output, Optional RC

RC7_AN15_IN 4 32 Analog Input, RC Filtered Fc = 190 kHz, tr = 1.8 µs

RC0_S1AN10_IN 5 13 Analog Input, RC Filtered F

RC2_S1ANA0_IN 6 23 Analog Input, RC Filtered Fc = 1 MHz, tr = 360 ns – Buffered

—7— — —

RC3_S1CMP3B_IN 8 27 Analog Input, RC Filtered F

RD11_S1AN17_IN 9 30 Analog Input, RC Filtered Fc = 1 MHz, tr = 360 ns – Buffered

RC1_S1ANA1_IN 10 22 Analog Input, RC Filtered Fc = 1 MHz, tr = 360 ns – Buffered

RA2_S1AN16_IN 11 16 Analog Input, RC Filtered F

RA3_S1AN0_IN 12 17 Analog Input, RC Filtered F

RA1_AN1_IN 13 15 Analog Input, RC Filtered F

RA4_S1AN1_IN 14 18 Analog Input, RC Filtered F

RA0_AN0_IN 15 14 Analog Input, RC Filtered Fc = 1.9 MHz, tr = 180 ns

RD10_S1AN13_IN 16 31 Analog Input, RC Filtered F

RD12_S1AN14_IN 17 21 Analog Input, RC Filtered F

RC6_S1CMP1B_IN 18 24 Analog Input, RC Filtered Fc = 10 MHz, tr = 33 ns

—19— — —

RB1_S1AN4_IN 20 29 Analog Input, RC Filtered F

Slot 21 Slot Slot Slot

Slot 22 Slot Slot Slot

—23— — —

RC8_RP56_ASDA1 24 36 Digital General Purpose 75R Series Resistance

RB12_RP44 25 63 Digital General Purpose 270R Series Resistance

RD14 26 11 Digital General Purpose 270R Series Resistance

RB13_RP45 27 64 Digital General Purpose 270R Series Resistance

Connector

Pin

Device

Pin

Function/Description Remarks

560R Series Resistance

Filter

= 1 MHz, tr = 360 ns – Buffered

c

= 10 MHz, tr = 33 ns

c

= 190 kHz, tr = 1.8 µs

c

= 1.9 MHz, tr = 180 ns

c

= 1.9 MHz, tr = 180 ns

c

= 1.9 MHz, tr = 180 ns

c

= 190 kHz, tr = 1.8 µs

c

= 190 kHz, tr = 1.8 µs

c

= 190 kHz, tr = 1.8 µs

c

 2019 Microchip Technology Inc. DS50002853A-page 15

dsPIC33CH512MP506 Digital Power PIM User’s Guide

TABLE A-1: PINOUT AND ELECTRICAL PARAMETERS (CONTINUED)

Edge

Name

RD9 28 38 Digital General Purpose 270R Series Resistance

—29— — —

—30— — —

RD6_S1PWM6H 31 43 PWM Output 75R Series Resistance

RC9_ASCL1 32 37 Digital General Purpose 75R Series Resistance

RD5_S1PWM6L 33 44 PWM Output 75R Series Resistance

RB11 34 62 Digital General Purpose 270R Series Resistance

RB14_S1RP46 35 1 Digital General Purpose 270R Series Resistance

RB10 36 61 Digital General Purpose 270R Series Resistance

RD4_S1PWM3H 37 54 PWM Output 75R Series Resistance

RB15_S1RP47 38 2 Digital General Purpose 270R Series Resistance

RD2_RP66 39 58 Digital General Purpose 270R Series Resistance

RC5_S1PWM2L 40 51 PWM Output 75R Series Resistance

RD3_S1PWM3L 41 55 PWM Output 75R Series Resistance

RC4_S1PWM2H 42 50 PWM Output 75R Series Resistance

RD1_S1PWM4H 43 59 PWM Output 75R Series Resistance

RD0_S1PWM4L 44 60 PWM Output 75R Series Resistance

RC10_S1PWM1H 45 52 PWM Output 75R Series Resistance

RC12_S1RC12 46 3 Digital General Purpose 270R Series Resistance

RC11_S1PWM1L 47 53 PWM Output 75R Series Resistance

RC13_RP61 48 4 Digital General Purpose 270R Series Resistance

MCLR_IN 49 7 Device Reset 100R Series Resistance

RD7 50 42 Digital General Purpose 270R Series Resistance

RB4_PGC2 51 35 Programing/Debugging 100R Series Resistance

RD8 52 39 Digital General Purpose 270R Series Resistance

RB6_SCL2 53 46 Digital General Purpose 75R Series Resistance

RD13 54 12 Digital General Purpose 270R Series Resistance

RB5_SDA2 55 45 Digital General Purpose 75R Series Resistance

RB3_PGD2 56 34 Programing/Debugging 100R Series Resistance

DD 57 LDO VDD Rail 6.3V max, 70 mA max

V

GND_D 58 9,26,40,56 Digital Ground —

DD 59 LDO VDD Rail 6.3V max, 70 mA max

V

GND_D 60 9,26,40,56 Digital Ground —

Connector

Pin

Device

Pin

Function/Description Remarks

DS50002853A-page 16  2019 Microchip Technology Inc.

 2019 Microchip Technology Inc. DS50002853A-page 17

Designed with

Altium.com

5600 pF
0603
25V

C37

560 pF
0603
50V

C34

560 pF
0603
50V

C33

+3.3V

0.1uF
50V
0402

C17

GND_DGND_DGND_D

GND_D

GND_A GND_A

GND_A

GND_A

GND_A

GND_A

GND_A

1k
0402
1%

R76

5600 pF
0603
25V

C32

GND_A

100 pF
0603
50V

C39

GND_A

GND_D

75R

R37

TP3

75R

R36

75R

R44

75R

R43

75R

R32

75R

R33

75R

R46

GND_A

GND_D

75R

R35

270R

R50

270R

R51

75R

R34

5600 pF
0603
25V

C36

GND_A

GND_A

5600 pF
0603
25V

C41

GND_A

100 pF
0603
50V

C40

GND_A

GND_A

560 pF
0603
50V

C30

Fg = 500 kHz

GND_D

100R

R20

100R

R21

dsPIC33CH512MP506

V

DD

57

V

DD

41

V

DD

25

V

DD

10

V

SS

40

V

SS

26

V

SS

9

RD0

60

RD1

59

RD2

58

RD3

55

RD4

54

RD5

44

RD6

43

RD7

42

RD8

39

RD9

38

RD10

31

RD11

30

RD12

21

RD13

12

RD14

11

RD15

8

MCLR

7

V

SS

56

AV

DD

19

AV

SS

20

RA0

14

RA1

15

RA2

16

RA3

17

RA4

18

RB0

28

RB1

29

RB2

33

RB3

34

RB4

35

RB5

45

RB6

46

RB7

47

RB8

48

RB9

49

RC0

13

RC1

22

RC2

23

RC3

27

RC4

50

RC5

51

RC6

24

RC7

32

RC8

36

RC9

37

RC10

52

RC11

53

RC12

3

RC13

4

RC14

5

RC15

6

RB10

61

RB11

62

RB12

63

RB13

64

RB14

1

RB15

2

U3

560 pF
0603
50V

C31

GND_A

GND_A

75R

R45

100R

R25

100R

R24

75R

R22

75R

R23

270R

R49

270R

R48

5600 pF
0603
25V

C38

GND_A

75R

R41

75R

R40

RED
0603

LD2

12
34
56
78
910
1112
1314
1516
1718
1920

2324
2526
2728
2930
3132
3334
3536
3738
3940
4142
4344
4546
4748
4950
5152
5354
5556
5758
5960

Edge Card 60

J5

RB0_CLKI

+3.3V_OPA

GND_A

0.1 μF
50V
0402

C20

GND_A

VIN-

3

VIN+

1

V

OUT

4

Vss

2

V

DD

5

MCP6V91UT

U5

RB2_DAC1_OUT

RB2_DAC1_OUT RB2_DACOUT1

RB2_DACOUT1
RB3_PGD2
RB4_PGC2

+3.3V_A

RC0_S1AN10_IN

OPA_1_IN

RB3_PGD2

MCLR_IN
RB4_PGC2
RB6_SCL2
RB5_SDA2

RC7_AN15_IN

RA3_S1AN0_IN

RD10_S1AN13_IN

RC2_S1ANA0_IN

RC1_S1ANA1_IN

RC8_RP56_ASDA1

RC2_S1ANA0

RC1_S1ANA1_IN

RC0_S1AN10_IN

RC7_AN15_IN

RD11_S1AN17_IN

OPA_1

+3.3V_OPA

RD15_LED

1k
0402
1%

R77

+3.3V_OPA

GND_A

0.1 μF
50V
0402

C21

GND_A

VIN-

3

VIN+

1

V

OUT

4

Vss

2

V

DD

5

MCP6V91UT

U6

OPA_2

+3.3V_OPA

1k
0402
1%

R78

+3.3V_OPA

GND_A

0.1 μF
50V
0402

C22

GND_A

VIN-

3

VIN+

1

V

OUT

4

Vss

2

V

DD

5

MCP6V91UT

U7

OPA_3

+3.3V_OPA

+3.3V_OPA

GND_A

0.1 μF
50V
0402

C23

GND_A

VIN-

3

VIN+

1

V

OUT

4

Vss

2

V

DD

5

MCP6V91UT

U8

OPA_4

+3.3V_OPA

1k
0402
1%

R79

OPA_1_IN

OPA_2_IN

OPA_3_IN

OPA_4_IN

OPA_2_IN

RD11_S1AN17_IN

OPA_3_INOPA_4_IN

150R
0603
1%

R75

150R
0603
1%

R60

150R
0603
1%

R63

150R
0603
1%

R64

150R
0603
1%

R71

150R
0603
1%

R61

150R
0603
1%

R62

150R
0603
1%

R69

150R
0603
1%

R70

5600 pF
25V
0603

C43

5600 pF
25V
0603

C44

150R
0603
1%

R72

10k
0402

0.5%

R95

49.9R
0805
1%

R90

GND_A

Vbode_max = 1 Vrms

TP LOOP Yellow

TP2

V

BODE

TP LOOP Black

TP1

49.9R

0603 1%

R93

GND_A

10k

0402 0.5%

R92

0.1 μF
50V
0402

C51

GND_A

10k

0402 0.5%

R91

3.3k
0402

0.5%

R96

VIN-

3

VIN+

1

V

OUT

4

Vss

2

V

DD

5

MCP6V91UT

U4

+3.3V_OPA

+3.3V_OPA

GND_A

0.1 μF
50V
0402

C24

GND_A

+3.3V_OPA

VB_inj = Vcc/2 – V

BODE

27R
0603
1%

R67

27R
0603
1%

R68

27R
0603
1%

R66

27R
0603
1%

R74

1 μF
10V
0402

C13

1 μF
10V
0402

C14

1 μF
10V
0402

C15

1 μF
10V
0402

C16

22pF
50V0402

C50

MCLR

+3.3V

MASTER Programing

GND_D

1

2

3

4

5

6

HDR-2.54 Male 1x6

J1

RB3_PGD2
RB4_PGC2

MCLR

+3.3V

GND_D

100R

0402
1%

R13

10k
0402
1%

R12

56 pF
50V
0402

C25

MCLR_IN

MCLR_IN

SDA2

SCL2

UART TX

UART RX

RC14_UART TX

RC15_UART RX

+3.3V

SLAVE Programing

GND_D

+3.3V

GND_D

1
2
3
4
5
6

HDR-1.27 Male 1x6 STAG

DNP

J2

10k
0402
1%

R14

100R

0402
1%

R15

RB7_S1MCLR1

RB8_S1PGD1
RB9_S1PGC1

MCLR_IN

RC7_AN15

RC0_S1AN10

RC3_S1CMP3B_IN

RC3_S1CMP3B_IN

RC3_S1CMP3B

RC1_S1ANA1

RC2_S1ANA0_IN

RA2_S1AN16_IN

RA2_S1AN16_IN

RA2_S1AN16

RA3_S1AN0_IN

RA3_S1AN0

RA1_AN1

RA1_AN1_IN

RA1_AN1_INRA4_S1AN1_IN

RA4_S1AN1_IN

RA4_S1AN1

RA0_AN0_IN

RA0_AN0_INRA0_AN0

RD10_S1AN13_IN

RD12_S1AN14_IN

RD12_S1AN14_IN

RC6_S1CMP1B

RC6_S1CMP1B_IN

RC6_S1CMP1B_IN
RB1_S1AN4_IN

RB1_S1AN4

5600 pF
0603
25V

C35

GND_A

150R
0603
1%

R65

RB1_S1AN4_IN

RD10_S1AN13
RD11_S1AN17
RD12_S1AN14

5600 pF
0603
25V

C42

RC8_RP56_ASDA1

RB12_RP44

RB12_RP44

RD14

RD14

RB13_RP45

RB13_RP45

RD9

RD9

RD6_S1PWM6H

RD6_S1PWM6H

RD5_S1PWM6L

RD5_S1PWM6L

RC9_ASCL1

RC9_ASCL1

RB11

RB14_S1RP46

RB14_S1RP46

RB10

RB10
RB11

RD4_S1PWM3H

RD4_S1PWM3H

RD3_S1PWM3L

RD3_S1PWM3L

RB15_S1RP47

RB15_S1RP47

RD2_RP66

RD2_RP66

RC5_S1PWM2L

RC5_S1PWM2L

RC4_S1PWM2H

RC4_S1PWM2H

RD1_S1PWM4H

RD1_S1PWM4H

RD0_S1PWM4L

RD0_S1PWM4L

RC10_S1PWM1H

RC10_S1PWM1H
RC11_S1PWM1L

RC11_S1PWM1L

RC12_S1RC12

RC12_S1RC12

RC13_RP61

RC13_RP61

RD7

RD7

RD8

RD8

RB6_SCL2

RB5_SDA2

RB6_SCL2

RB5_SDA2

RD13

RD13

RC15_UART RX

RC14_UART TX

RD15_LED

RB7_S1MCLR1
RB8_S1PGD1
RB9_S1PGC1

270R

R42

270R

R47

270R

R26

270R

R27

270R

R28

270R

R29

270R

R30

270R

R31

270R

R38

270R

R39

0.1 μF
50V
0402

C18

GND_D

+3.3V

75R
0402
1%

R11

RB0_CLKI

STB

1

GND

2

OUT

3

V

DD

4

8.000 MHz
DSC6011JI2A-008.0000

Y1

0603
DNP

C45

560R
0603
1%

R80

GND_A

GND_A

+3.3V_OPA

+3.3V_OPA

150R
0603
1%

DNP

R94

Bode_Inj

Bode_Inj

56 pF
50V
0402

C26

R72 and R94 are alternate
places for the same resistor.
It forms an isolation switch
for Bode 100 Signal Injection.

DB2S31000L

D4

DB2S31000L

D3

DB2S31000L

D6

DB2S31000L

D5

+VDD_EXT

3.3k
0402
1%

R81

270R -> RES2134

TP LOOP Yellow

TP4

TP LOOP Yellow

TP5

A.2 BOARD SCHEMATICS

Figure A-1 and Figure A-2 show the board schematics.

FIGURE A-1: dsPIC33CH512MP506 DIGITAL POWER PIM SCHEMATIC REV. 1.0 (PAGE 1 OF 2)

Board Layout and Schematics

DS50002853A-page 18  2019 Microchip Technology Inc.

Designed with

Altium.com

10k
0402
1%

R1

270R

0402 1%

R4

270R

0402 1%

R5

+3.3V +3.3V

V

DD

16

GP0

1

GP1

2

RST

3

UART RX

4

UART TX

5

GP2

6

GP3

7

SDA

8

SCL

9

V

USB

10

D-

11

D+

12

Vss

13

EP

17

NC

14

NC

15

MCP2221-I/ML

U1

4.7k
0402
1%

R6

4.7k
0402
1%

R7

SDA2

SCL2

UART TX

UART RX

GND_D

+VDD_EXT

+3.3V

GND_DGND_D

3.6V . .6 V

MAX

from Edge Connector

+5V_USB

0.1 μF
50V
0402

C8

GND_D

3.3k
0402
1%

R8

GREEN
0603

LD1

V

IN

1

SHDN

3

GND

2

PWRGD

4

V

OUT

5

MCP1755/3.3V

U2

MCLR_IN

MCLR_IN

GND_A

0R
0603

R9

GND_D

0R
0603

R10

Shield

“Shield” = Bottom copper pour connection

+3.3V_A

GND_A

+3.3V_OPA

+3.3V

GND_A

1 μF
10V
0402

C6

0.47 μF

6.3V
0402

C7

10 μF
10V
0603

C9

10 μF
10V
0603

C10

10 μF
10V
0603

C11

10 μF
10V
0603

C12

600R
0402
900 mA

FB3

600R
0402
900 mA

FB5

600R
0402
900 mA

FB6

600R
0402
900 mA

FB7

GND_U

GND_U

SBR1A20T5

D2

1 2 3 4 50

DNGV5+ -D+DDI

Micro-AB Receptacle

USB2.0 MICRO-B FEMALE

J3

GND_S

+5V_USB

USB_N

USB_P

3

1

4

2

744230900

L1

WE CNSW

1

2

3

456

82400152

D1

GND_U

USB Port

0.1 μF
50V
0402

C3

47 pF
50V
0402

C1

47 pF
50V
0402

C2

GND_U GND_UGND_U

GND_U

600R
0402
900 mA

FB4

USB/UART-I2C Interface

600R 0402
900 mA

FB1

600R 0402
900 mA

FB2

4.7k

0402
1%

R0

15R

0402
1%

R2

15R

0402
1%

R3

0.1 μF 50V

0402

C0

5V from USB Connector

FIGURE A-2: dsPIC33CH512MP506 DIGITAL POWER PIM SCHEMATIC REV. 1.0 (PAGE 2 OF 2)

dsPIC33CH512MP506 Digital Power PIM User’s Guide

Board Layout and Schematics

Top Silkscreen

Top Copper

A.3 PCB LAYOUT

The dsPIC33CH512MP506 DP PIM is a four-layer FR4, 1.55 mm, Plated-Through-Hole (PTH) PCB
construction. Figure A-3 through Figure A-5 illustrate the PCB layers and Figure A-6 shows the assembly
drawings of the dsPIC33CH512MP506 DP PIM.

FIGURE A-3: dsPIC33CH512MP506 DIGITAL POWER PIM TOP SILKSCREEN AND TOP COPPER

 2019 Microchip Technology Inc. DS50002853A-page 19

dsPIC33CH512MP506 Digital Power PIM User’s Guide

Mid1 Inner Copper

Mid2 Inner Copper

FIGURE A-4: dsPIC33CH512MP506 DIGITAL POWER PIM MID1 AND MID2 INNER COPPER

(BOTTOM VIEW)

DS50002853A-page 20  2019 Microchip Technology Inc.

Board Layout and Schematics

Bottom Copper

Bottom Silkscreen

FIGURE A-5: dsPIC33CH512MP506 DIGITAL POWER PIM BOTTOM COPPER AND BOTTOM

SILKSCREEN (BOTTOM VIEW)

 2019 Microchip Technology Inc. DS50002853A-page 21

dsPIC33CH512MP506 Digital Power PIM User’s Guide

Top Assembly

Bottom Assembly

1

5

0

0

1

1

1

2

3

4

0

0

6

1

1

2

1

1

2

2

1

2

2

3

2

1

2

1

1

3

3

2

1

3

1

1

2

1

2

2 1

21

1 2

21

12

2

2

2

1

12

21

21

21

12

1

2

2

1

2

32

2

1

2

1

2

30 29 28

2

1

2

2

1

1

2

26 25 24

2

1

2

22 21 20

2

1

2

2

1

18 17

1

2

1

1

5

4

3

9

8

7

13

12

11

16

15

2

1

2

1

2

1

1

1

1

2

2

2

2

2

2

1

2

1

2

1

2

1

2

2

1

1

1

2

1

1

2

2

2

1

2

2

1

1

12

2

3

2

1

2

1

1

2

12

2

4

1

1

2

2

1

2

1

1

2

1

1

1

1

3

2

2

2

1

5 7

12

2

2

11 13

12

12

17

1

49

1

23

535251

1

27

575655

1

29

616059

1

33

6463

2

37

14

10

6

2

1

39

1

2

2

2

2

43 45

1

2

1

2

1

2

49

2

1

2

1

53 55

5

2 1

21

4

12 11

1

2

59

1

43

12

3

10 9

1

2

1

1

2

4

5

5

5

4

4

2 1

5

4

1

1

2

121

2

1

1 1

21

2

1 121

2

48

46

45

44

42

41

40

38

37

36

2

34

33

2

31 27

1

3

1

2

2

1

212

1

23 19

1 2

1 1

1

2 2

2

1

2

22

1

2

2

2

2

1

1

1

1

1

1

1

2

1

22

16 5

14

13 8

7

122

6251

11 1

3

2

1

5

5

4

2 2

93

11

11

251915

5450

47

43

39

35

2

4

2

3531

6258

2 1

514741

2 2

1

2

1 1

1

1

1

57

1

2 1

2

15 6

23411

22 2

0

4

0

0

17

0

2

1

1

5

0

0

1

1

1

2

3

4

0

0

6

1

268121418242830343840444650545660 10 426 20 1636 3252 48 4258

FIGURE A-6: dsPIC33CH512MP506 DIGITAL POWER PIM TOP AND BOTTOM ASSEMBLY

DS50002853A-page 22  2019 Microchip Technology Inc.

Appendix B. Bill of Materials (BOM)

This appendix contains the Bill of Materials (BOM) for the dsPIC33CH512MP506
Digital Power PIM.

• Bill of Materials

B.1 BILL OF MATERIALS

Ta bl e B -1 shows the Bill of Materials for the dsPIC33CH512MP506.

dsPIC33CH512MP506 DIGITAL

POWER PIM USER’S GUIDE

TABLE B-1:

Qty Designator Description Manufacturer Manufacturer Part Number

11 C0, C3, C8, C17, C18,

C20, C21, C22, C23,
C24, C51

2 C1, C2 Capacitor, Ceramic, 47 pF,

5 C6, C13, C14, C15, C16 Capacitor, Ceramic, 1 µF, 10V,

1 C7 Capacitor, Ceramic, 0.47 µF,

4 C9, C10, C11, C12 Capacitor, Ceramic, 10 µF,

2 C25, C26 Capacitor, Ceramic, 56 pF,

4 C30, C31, C33, C34 Capacitor, Ceramic, 560 pF, 50V,

9 C32, C35, C36, C37,

C38, C41, C42, C43,
C44

2 C39, C40 Capacitor, Ceramic, 100 pF,

1 C50 Capacitor, HiQ, 22 pF, 50V, 5%,

1 D1 Diode, TVS Array, 82400152,

1 D2 Diode, Schottky, SBR1A20T5-7,

4 D3, D4, D5, D6 Diode, Schottky, DB2S31000L,

7 FB1, FB2, FB3, FB4,

FB5, FB6, FB7

1 J1 Connector Header-2.54, Male,

1 J3 Connector, USB 2.0, Micro-B,

dsPIC33CH512MP506 DIGITAL POWER PIM BILL OF MATERIALS (BOM)

Capacitor, Ceramic, 0.1 µF,
50V, 10%, X7R, SMD, 0402

50V, 5%, NP0, SMD, 0402

10%, X7S, SMD, 0402

6.3V, 10%, X5R, SMD, 0402

10V, 20%, X5R, SMD, 0603

50V, 5%, C0G, SMD, 0402

5%, C0G, NP0, SMD, 0603

Capacitor, Ceramic, 5600 pF,
25V, 5%, C0G, SMD, 0603

50V, 5%, NP0, SMD, 0603

NP0, 1.95 GHz, SMD, 0402

5V, USB 2.0, SMD, SOT-563

520 mV, 1A, 20V, SOD-523

470 mV, 200 mA, 30V, SMD,
SOD-523

Ferrite, 600R at 100 MHz,

0.23R, 900 mA, SMD, 0402

1x6 Gold, 5.84 MH TH, Vertical

Female, TH/SMD, R/A

TDK Corporation C1005X7R1H104K050BB

®

Murata Electronics

TDK Corporation C1005X7S1A105K050BC

Murata Electronics GRM155R60J474KE19D

Samsung Group CL10A106MP8NNNC

TDK Corporation C1005C0G1H560J050BA

KEMET C0603C561J5GACTU

TDK Corporation C1608C0G1E562J080AA

AVX Corporation GMC10CG101J50NT

Johanson
Technology Inc.

Wurth Elektronik 82400152

Diodes Incorporated

®

Panasonic

Murata Electronics BLM15PX601SN1D

FCI 68000-106HLF

FCI 10118194-0001LF

- ECG DB2S31000L

GRM1555C1H470JA01D

500R07S220JV4T

®

SBR1A20T5-7

 2019 Microchip Technology Inc. DS50002853A-page 23

dsPIC33CH512MP506 Digital Power PIM User’s Guide

TABLE B - 1 :

Qty Designator Description Manufacturer Manufacturer Part Number

1 L1 Common-mode Choke, 90R,

1 LD1 Diode LED Green, 2V, 30 mA,

1 LD2 Diode LED Red, 1.8V, 40 mA,

3 R0, R6, R7 Resistor TKF, 4.7k, 5%, 1/10W,

3 R1, R12, R14 Resistor TKF, 10k, 1%, 1/10W,

2 R2, R3 Resistor TKF, 15R, 1%, 1/10W,

16 R4, R5, R26, R27, R28,

R29, R30, R31, R38,
R39, R42, R47, R48,
R49, R50, R51

2 R8, R81 Resistor TKF, 3.3k, 5%, 1/10W,

2 R9, R10 Resistor TKF, 0R, 1/10W,

15 R11, R22, R23, R32,

R33, R34, R35, R36,
R37, R40, R41, R43,
R44, R45, R46

6 R13, R15, R20, R21,

R24, R25

11 R60, R61, R62, R63,

R64, R65, R69, R70,
R71, R72, R75

4 R66, R67, R68, R74 Resistor TKF, 27R, 1%, 1/10W,

4 R76, R77, R78, R79 Resistor TKF, 1k, 1%, 1/10W,

1 R80 Resistor TKF, 560R, 1%,

1 R90 Resistor TKF, 49.9R, 1%,

3 R91, R92, R95 Resistor TF, 10k, 0.5%, 1/16W,

1 R93 Resistor TKF, 49.9R, 1%,

1 R96 Resistor TKF, 3.3k, 0.5%,

1 TP1 Misc. Test Point, Multipurpose,

1 TP2 Misc. Test Point, PC, Mini,

1 TP3 Connector, Test Point, TAB,

dsPIC33CH512MP506 DIGITAL POWER PIM BILL OF MATERIALS (BOM) (CONTINUED)

Wurth Elektronik 744230900
100 MHz, 0.145R, 550 mA,
SMD, 0603

®

, Inc. LTST-C190KGKT

RMCF0603FT150R

5001

5004

5019

35 mcd, Clear, SMD, 0603

10 mcd, Clear, SMD, 0603

SMD, 0402

SMD, 0402

SMD 0402

Resistor TKF, 270R, 5%,
1/10W, SMD 0402

SMD, 0402

SMD, 0603

Resistor TKF, 75R, 1%, 1/16W,
SMD, 0402

Resistor TKF, 100R, 1%,
1/10W, SMD, 0402

Resistor TKF, 150R, 1%,
1/10W, SMD, 0603

SMD, 0603

SMD, 0402

1/10W, SMD, 0603

1/8W, SMD, 0805

SMD, 0402

1/10W, SMD, 0603

1/16W, SMD, 0402

Mini, Black

0.040", D, Yellow

Silver Mini, 3.8x2.03, SMD

Lite-On

Lite-On, Inc. LTST-C190KRKT

Panasonic® - ECG ERJ-2GEJ472X

Panasonic - ECG ERJ-2RKF1002X

Panasonic - ECG ERJ-2RKF15R0X

Panasonic - ECG ERJ-2GEJ271X

Panasonic - ECG ERJ-2GEJ332X

Yageo Corporation RC0603JR-070RL

Yageo Corporation RC0402FR-0775RL

Panasonic - ECG ERJ-2RKF1000X

Stackpole

Electronics, Inc.

Yageo Corporation RC0603FR-0727RL

Panasonic - ECG ERJ-2RKF1001X

Yageo Corporation RC0603FR-07560RL

Panasonic - ECG ERJ-6ENF49R9V

Susumu Co., LTD. RR0510P-103-D

Panasonic - ECG ERJ-3EKF49R9V

Panasonic - ECG ERA-2AED332X

Keystone Electronics

Corp.

Keystone Electronics

Corp.

Keystone Electronics

Corp.

DS50002853A-page 24  2019 Microchip Technology Inc.

Bill of Materials (BOM)

TABLE B-1:

Qty Designator Description Manufacturer Manufacturer Part Number

2 TP4, TP5 Misc. Test Point, PC, Mini,

1 U1 Microchip Interface, USB,

1 U2 Microchip Analog LDO, 3.3V,

1 U3 Microchip MCU, 16-Bit,

5 U4, U5, U6, U7, U8 Microchip Analog Op Amp,

1 Y1 Microchip Clock Oscillator,

dsPIC33CH512MP506 DIGITAL POWER PIM BILL OF MATERIALS (BOM) (CONTINUED)

0.040", D, Yellow

I2C/UART, MCP2221A-I/ML,
QFN-16

MCP1755T-3302E/OT,
SOT-23-5

180/200 MHz, 512/72 kB,
48/16 kB,
dsPIC33CH512MP506-I/PT,
TQFP-64

1-Ch, 10 MHz,
MCP6V91UT-E/LTYCT-ND,
SC-70-5

Single, 8.000 MHz,
DSC6011JI2A-008.0000,
VDFN-4

Keystone Electronics
Corp.

Microchip
Technology Inc.

Microchip
Technology Inc.

Microchip
Technology Inc.

Microchip
Technology Inc.

Microchip
Technology Inc.

5004

MCP2221A-I/ML

MCP1755T-3302E/OT

dsPIC33CH512MP506-I/PT

MCP6V91UT-E/LTY

DSC6011JI2A-008.0000

 2019 Microchip Technology Inc. DS50002853A-page 25

dsPIC33CH512MP506 Digital Power PIM User’s Guide

NOTES:

DS50002853A-page 26  2019 Microchip Technology Inc.

dsPIC33CH512MP506 DIGITAL

f

c

1

2 R

FiltCFilt



----------------------------------=

POWER PIM USER’S GUIDE

Appendix C. Characterization Data

This chapter provides some characterization data and further guidance on sub-circuits
of this Digital Power PIM to allow engineers to gain a better understanding of technical
limitations, as well as enable users to solve design trade-offs in additional circuits on
custom boards, such as signal conditioning or auxiliary power supplies.

Note: The graphs and tables provided following this note are a statistical

summary based on a limited number of samples and are provided for
informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented
may be outside the specified operating range (e.g., outside specified power
supply range), and therefore, outside the warranted range.

C.1 MEASUREMENT ACCURACY IMPACTS

C.1.1 High-Speed Analog Signal Tracking Considerations

Each of the four groups of the analog inputs, high-speed ADC, mid-speed ADC,
low-speed ADC and high-speed comparator inputs have been equipped with RC
low-pass filters to prevent corruption of sampling results, such as alias-frequencies
being injected into a series of ADC sampling results, and to ensure proper operation of
the high-speed comparators in noisy environments. These deliberate bandwidth
limitations, however, may affect the accuracy of the ADC results when tracking
high-speed signals.

C.1.1.1 FILTER BANDWIDTH IMPACTS

This section discusses the influence of the RC low-pass filter bandwidth limits versus
the expected sampling error to allow designers to identify the maximum signal slew
rate, which can be tracked with a certain known accuracy.

The cutoff frequency, f
output signal magnitude is reduced by -3dB.

The first-order RC filter cutoff frequency is defined by Equation C-1.

EQUATION C-1:

When using high-speed ADCs with sampling times of 10 ns to 50 ns or less, tracking
signal transients at this frequency will also show a 3 dB offset in ADC results in
accordance to the damped signal gain. To allow a more accurate analysis of the
tracking error, with regards to the transient frequency, we need to look at the total gain
characteristic over frequency.

of an RC low-pass filter defines the frequency at which its

c,

 2019 Microchip Technology Inc. DS50002853A-page 27

dsPIC33CH512MP506 Digital Power PIM User’s Guide

Hs

1

1

s



c

----- -

+

---------------=



c

2f

c

1

R

FiltCFilt

----------------------==

Hs

1

1sR

FiltCFilt

+

---------------------------------- -

=

First-Order RC Filter Transfer Function

R = 270, C = 560 pF

The transfer function of a first-order RC low-pass filter is defined by Equation C-2
through Equation C-4.

EQUATION C-2:

EQUATION C-3:

EQUATION C-4:

FIGURE C-1: FIRST-ORDER RC LOW-PASS FILTER TRANSFER FUNCTION

DS50002853A-page 28  2019 Microchip Technology Inc.

By plotting the frequency domain transfer function of the RC filter, it is shown that the
output voltage of the RC filter network at the cutoff frequency, f
amplitude, but also shifted in time. While the amplitude reduction is absolute, the phase
delay may require a relocation of the ADC sample trigger to achieve accurate results.

As both magnitude and phase of the RC filter output signal do not change instantly, but
over frequency with varying degree, the deviation from the unfiltered feedback signal,
and thus, the related ADC result deviation, may have to be considered.

, is not only damped in

c

Characterization Data

C.1.2 Example

In order to demonstrate the impact of the on-board RC filtering, the following example
shows the impact when tracking the average value of a 500 kHz at 50% duty cycle
current feedback signal with minimum sampling error.

Let the average value be 500 mV and the peak-to-peak voltage 200 mV, following ideal
current-to-voltage conversion. Figure C-2 shows the unfiltered ideal signal along with
the waveforms obtained after this signal is passed through any of the on-board RC
filters. Note that the filtering does not alter the average value along (ADC Input
Voltage = 0.5) any of the filtered signals. The mid-points of each filtered AC signals,
however, have been shifted in time with respect to the phase delay of the RC filter.
When this phase delay is not properly considered, the ADC trigger may be displaced
from the desired average point of the oversampled signal, resulting in a significant
measurement error.

FIGURE C-2: UNFILTERED AND FILTERED TRIANGULAR WAVEFORMS

 2019 Microchip Technology Inc. DS50002853A-page 29

dsPIC33CH512MP506 Digital Power PIM User’s Guide

 R

FiltCFilt

=

V

OUT

t VINt 1e

t– 

–=

Depending on the application, in order to obtain the average value with the required
accuracy, a time delay in the sampling trigger of the ADC might need to be introduced.
In our specific case, in order to take the sample with the best accuracy, the trigger
should be offset by approximately 60, 135 and 390 ns, as shown in Figure C-3.

FIGURE C-3: SAMPLING TRIGGER PLACEMENT FOR BEST ACCURACY

C.1.2.1 STEP RESPONSE DELAY ESTIMATION

Deriving from Equation C-1, the time constant of the first-order RC filter is defined by

Equation C-5, which is generally used to characterize the response of a first-order RC

filter to a step input, as shown in Equation C-6.

EQUATION C-5:

EQUATION C-6:

DS50002853A-page 30  2019 Microchip Technology Inc.

Figure C-4 shows the calculated step responses of the on-board filters normalized to

 t 100

V

OUT

t VINt–

VINt

----------------------------------------

=

 t 100 e

t– 

=

the input voltage.

FIGURE C-4: NORMALIZED STEP RESPONSE

Characterization Data

In case a sample is taken at the filter output time, t, after the step input was applied, the
percentage error with respect to the settled value can be calculated by using

Equation C-7 and Equation C-8 (substituting Equation C-6).

EQUATION C-7:

EQUATION C-8:

 2019 Microchip Technology Inc. DS50002853A-page 31

dsPIC33CH512MP506 Digital Power PIM User’s Guide

t

s

–



max

100

---------- -





ln=

Figure C-5 depicts the remaining percentage error with respect to the sampling time.

FIGURE C-5: NORMALIZED OUTPUT ERROR

On the other hand, if a maximum tolerable percentage error, 
advance, the earliest time the sample should be taken can be calculated by using

Equation C-9, which is obtained from Equation C-8 by expressing t.

EQUATION C-9:

Filter capacitors on the board are either 560 pF or 5600 pF, whereas the on-chip hold
capacitance is around 5 pF. Due to the large ratio of the on-board versus on-chip
capacities, and for the sake of simplicity, the loading effect of the Sample-and-Hold
(S&H) circuitry has been neglected here.

, is defined in

max

DS50002853A-page 32  2019 Microchip Technology Inc.

Characterization Data

Legend:

CPIN = Input Capacitance VT = Threshold Voltage

RSS = Sampling Switch Resistance RIC = Interconnect Resistance

R

S = Source Resistance CHOLD = Sample-and-Hold Capacitance

ILEAKAGE = Leakage Current at the Pin

due to Various Junctions

Note 1: The C

PIN value depends on the device package and is not tested. The effect of

the C

PIN is negligible if RS 5 k.

Demanding applications, however, might need to consider the loading effect of the S&H
capacitance as well. The electrical model shown in Figure C-6 can be used to make
more elaborate calculations.

FIGURE C-6:

 2019 Microchip Technology Inc. DS50002853A-page 33

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DS50002853A-page 34  2019 Microchip Technology Inc.

08/15/18