Microchip MCP1012 User Manual

MCP1012

1W Demonstration Board

User’s Guide

 2020 Microchip Technology Inc. DS50002932A

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For information regarding Microchip’s Quality Management Systems,
please visit www.microchip.com/quality.

ISBN: 978-1-5224-5618-6

DS50002932A-page 2  2020 Microchip Technology Inc.

MCP1012

1W DEMONSTRATION BOARD

USER’S GUIDE

Table of Contents

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

Introduction............................................................................................................ 5

Document Layout .................................................................................................. 5

Conventions Used in this Guide ............................................................................ 7

Recommended Reading........................................................................................ 8

The Microchip Website.......................................................................................... 8

Customer Support ................................................................................................. 8

Document Revision History ................................................................................... 8

Chapter 1. Product Overview

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

1.2 MCP1012 Short Overview

1.3 MCP1012 1W Demonstration Board Description ......................................... 10

1.4 Contents of the MCP1012 1W Demonstration Board Kit ............................. 11

(1)

.......................................................................... 9

Chapter 2. Installation and Operation

2.1 Getting Started ............................................................................................. 13

2.2 Setup Procedure .......................................................................................... 13

Chapter 3. Setup One

3.1 Setup 1A ....................................................................................................... 15

Introduction.......................................................................................................... 15

Steps ................................................................................................................... 15

3.2 Setup 1B ....................................................................................................... 16

Introduction.......................................................................................................... 16

Steps ................................................................................................................... 16

Chapter 4. Setup Two

4.1 Setup 2 ......................................................................................................... 19

Introduction.......................................................................................................... 19

Steps ................................................................................................................... 19

Chapter 5. Setup Three

5.1 Setup 3 ......................................................................................................... 23

Introduction.......................................................................................................... 23

Steps ................................................................................................................... 23

Chapter 6. Setup Four

6.1 Setup 4A ....................................................................................................... 27

Introduction.......................................................................................................... 27

 2020 Microchip Technology Inc. DS50002932A-page 3

MCP1012 1W Demonstration Board User’s Guide

Steps ................................................................................................................... 27

6.2 Setup 4B ....................................................................................................... 28

Introduction.......................................................................................................... 28

Steps ................................................................................................................... 28

Chapter 7. Setup Five

7.1 Setup 5 ......................................................................................................... 31

Introduction.......................................................................................................... 31

Steps ................................................................................................................... 31

Appendix A. Schematic and Layouts

A.1 Introduction .................................................................................................. 33

A.2 Board – Schematic ....................................................................................... 34

A.3 Board – Top Silk .......................................................................................... 35

A.4 Board – Top Copper and Silk ....................................................................... 35

A.5 Board – Top Copper .................................................................................... 36

A.6 Board – Bottom Copper ............................................................................... 36

A.7 Board – Bottom Copper and Silk ................................................................. 37

A.8 Board – Bottom Silk ..................................................................................... 37

Appendix B. Bill of Materials (BOM) ...........................................................................39

Worldwide Sales and Service .....................................................................................43

DS50002932A-page 4  2020 Microchip Technology Inc.

MCP1012

1W DEMONSTRATION BOARD

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
“DSXXXXXA”, where “XXXXX” 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
MCP1012 1W Demonstration Board. Items discussed in this chapter include:

• Document Layout

• Conventions Used in this Guide

• Recommended Reading

• The Microchip Website

• Customer Support

• Document Revision History

DOCUMENT LAYOUT

This document describes how to use the MCP1012 1W Demonstration Board as a
development tool. The manual layout is as follows:

• Chapter 1. “Product Overview” – Important information about the MCP1012 1W

Demonstration Board.

• Chapter 2. “Installation and Operation” – Includes instructions on how to get

started with the MCP1012 1W Demonstration Board and a description of each
function.

• Chapter 3. “Setup One” – Description of the functioning of the MCP1012 in

Start-Up mode when it is supplied by the secondary side of the transformer and no
load is applied at the output (neither of the R20, R21, R22, or R23 resistors is con­nected) (setup 1A) as well as a description of the functioning of the MCP1012 in
Start-Up mode when it is supplied by the secondary side of the transformer and a
load is applied at the output (the resistor R21 - 68is connected through SW1.2)
(setup 1B).

• Chapter 4. “Setup Two” – Description of the functioning of the MCP1012 in

Start-Up mode when it is supplied by an external power supply (15V) at V

DD pin

 2020 Microchip Technology Inc. DS50002932A-page 5

MCP1012 1W Demonstration Board User’s Guide

and a load is applied at the output (the resistor R20 - 51is connected through
SW1.1).

• Chapter 5. “Setup Three” – Description of the Sleep/Wake-Up functions of the

MCP1012 in Start-Up mode when it is supplied by an external power supply (15V)
at V

DD pin and a load is applied at the output (the resistor R20 - 51is connected

through SW1.1).

• Chapter 6. “Setup Four” – A description of the functioning of the MCP1012 in

Normal Run mode when an external command is applied at PULSE pin and the
C/S pin voltage does not reach the COMP1 Reference (252 mV) (setup 4A) as
well as a description of the functioning of the MCP1012 in Normal Run mode
when an external command is applied at PULSE pin and the C/S pin voltage
reaches the COMP1 Reference (252 mV) (setup 4B).

• Chapter 7. “Setup Five” – Description of the functioning of the MCP1012 in

Start-Up mode when a short circuit is created on the secondary side of the
transformer.

• Appendix A. “Schematic and Layouts” – Shows the schematic and layouts for

the MCP1012 1W Demonstration Board.

• Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the

MCP1012 1W Demonstration Board.

DS50002932A-page 6  2020 Microchip Technology Inc.

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB

Initial caps A window the Output window

Quotes A field name in a window or

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 [,

Preface

®

IDE User’s Guide

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

A dialog the Settings dialog
A menu selection select Enable Programmer

“Save project before build”

dialog
A menu path File>Save

A tab Click the Power tab

4‘b0010, 2‘hF1
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’

any valid filename

[options]

Choice of mutually exclusive
arguments; an OR selection

Represents code supplied by
user

errorlevel {0|1}

var_name...]

void main (void)

{ ...

}

 2020 Microchip Technology Inc. DS50002932A-page 7

MCP1012 1W Demonstration Board User’s Guide

RECOMMENDED READING

This user's guide describes how to use the MCP1012 1W Demonstration Board.
Another useful document is listed below. The following Microchip document is available
and recommended as a supplemental reference resource:

• MCP1012 Data Sheet - “Primary Side Start-Up IC for Isolated Converters”

(DS20006277)

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, listings of Microchip sales offices,
distributors and factory representatives

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Field Application Engineer (FAE)

• Technical Support

Customers should contact their distributor, representative or field application engineer
(FAE) 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 (February 2020)

• Initial release of this document.

DS50002932A-page 8  2020 Microchip Technology Inc.

Chapter 1. Product Overview

1.1 INTRODUCTION

This chapter provides an overview of the MCP1012 1W Demonstration Board and
covers the following topics:

• MCP1012 Short Overview(1)

• MCP1012 1W Demonstration Board Description

• Contents of the MCP1012 1W Demonstration Board Kit

MCP1012

1W DEMONSTRATION BOARD

USER’S GUIDE

1.2 MCP1012 SHORT OVERVIEW

1.2.1 Features

• High Voltage Start-Up (rated 500V/700V)

• Internal Open-Loop, Peak Current Mode, Current Regulator for Start-Up

• Current Regulator Constant 21.0 µs OFF Time

• Programmable Low Frequency Oscillator (LFO) Period

• Cycle-by-Cycle Current Limiting

• Protection against Continuous Conduction Mode (CCM) of Operation

• Able to Accept External PWM Commands from a Secondary-Side Controller via
Isolator (Optocoupler or Pulse Transformer)

• Undervoltage Lockout (UVLO) and Overvoltage Lockout (OVLO) Protections

• Sleep and Wake-Up Commands

• Robust Gate Driver, able to drive 2.2 nF Load at 65 kHz

• Overtemperature Protection (Thermal Shutdown)

• Package: 7-Lead SOIC

• Environmentally Friendly, EU RoHS Compliant, Pb-Free

1.2.2 Description

The MCP1012 is used as a primary-side start-up IC for starting an off-line Switch Mode
Power Converter, exemplified in this user’s guide and the data sheet by a Flyback
converter.

(1)

The primary functions of the MCP1012 are:

• Starting-Up the Flyback Converter using an Internal Open-Loop, Peak Current
Mode, Current Regulator

• Accepting PWM commands via optocoupler or pulse transformer from a
Secondary-Side Controller

• Providing undervoltage (UVLO) and overvoltage (OVLO) protection

• Peak cycle-by-cycle current limiting when either under control of its internal
current regulator or under control of the Secondary-Side Controller

• Overtemperature protection

Note 1: More detailed information regarding the capabilities of the MCP1012 is

available in the data sheet.

 2020 Microchip Technology Inc. DS50002932A-page 9

MCP1012 1W Demonstration Board User’s Guide

AC LINE

INTERFACE

GNDLFO

V

DD

V

IN

GATE

C/S

PULSE

MCP1012

C2

D1

D2

D3

T1

Q1

C3

R1

R2

C4

SERIES

REGULATOR

C1

LOAD

FIGURE 1-1: MCP1012 Typical Application — in an Open Loop Flyback Topology.

1.3 MCP1012 1W DEMONSTRATION BOARD DESCRIPTION

The MCP1012 1W Demonstration Board is used to evaluate and demonstrate
Microchip Technology’s MCP1012 product. This board demonstrates the capabilities of
the MCP1012 in a Flyback converter application supplied from an external voltage
source (120V–500V), with regulated output.

DS50002932A-page 10  2020 Microchip Technology Inc.

FIGURE 1-2: MCP1012 1W Demonstration Board Top View.

Product Overview

1.4 CONTENTS OF THE MCP1012 1W DEMONSTRATION BOARD KIT

The MCP1012 1W Demonstration Board kit includes:

• MCP1012 1W Demonstration Board (DT100118)

• Isolated Jumper JP1 (Mechanical hardware jumper 6.35 mm 1x2 D3087-98)

• Important Information Sheet

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MCP1012 1W Demonstration Board User’s Guide

NOTES:

DS50002932A-page 12  2020 Microchip Technology Inc.

Chapter 2. Installation and Operation

2.1 GETTING STARTED

In order to use and evaluate the capabilities of the MCP1012, several hardware tools
are required and several guidelines will be followed.

2.1.1 Required Hardware Tools

• MCP1012 1W Demonstration Board (DT100118)

• 120–500 VDC, min. 0.5A DC HV power supply

• 15.0 VDC, min. 0.5A DC power supply

• 5.0 VDC, min. 100 mA DC power supply (only for Sleep/Wake-Up functions
testing)

• DC Voltmeter

• Jumpers (2.54 mm)

• Oscilloscope (optional)

• Signal Generator (optional)

MCP1012

1W DEMONSTRATION BOARD

USER’S GUIDE

2.1.2 Recommendations before Starting the Setup Process

• Place the MCP1012 1W Demonstration Board on a non-conductive surface
when connected to the DC power supplies.

• Do not come into contact with the demonstration board while it is connected to
the DC HV power supply.

• Disconnect the demonstration board from the DC power supplies before
performing any work on the MCP1012 1W Demonstration Board.

• Connect instruments that have earth-referenced inputs (such as most
oscilloscopes) only if the galvanic separation is present against the AC mains, or
use a 1:1 transformer for supplying the demonstration board.

Failure to adhere to these guidelines may result in damage to the demo unit, the tests
instruments, and/or can put in danger the person conducting the tests.

2.2 SETUP PROCEDURE

The functionality of the MCP1012 1W Demonstration Board can be evaluated through
seven different setups, which are described in the following chapters.

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MCP1012 1W Demonstration Board User’s Guide

NOTES:

DS50002932A-page 14  2020 Microchip Technology Inc.

MCP1012

1W DEMONSTRATION BOARD

USER’S GUIDE

Chapter 3. Setup One

3.1 SETUP 1A

INTRODUCTION

This setup will show the functioning of the MCP1012 in Start-Up mode when it is
supplied by the secondary side of the transformer and no load is applied at the output
(neither of the R20, R21, R22, or R23 resistors is connected).

STEPS

1. Connect/disconnect the jumpers and the switch SW1 according to Ta b le 3 -1 .

TABLE 3-1: STATE OF THE JUMPERS AND SWITCH - SETUP 1A

J1 J2 J3 J4 J5 J6 J7 JP1 SW1.1 SW1.2 SW1.3 SW1.4

ON OFF ON* OFF OFF OFF OFF ON

Note 1: JP1 and J3 connections eliminate the galvanic isolation between the Primary Side

and the Secondary Side of the transformer. Specific safety procedures must be taken
into account. The MCP1012 is supplied from the secondary side of the transformer.
On the board JP1 is connected to PIN1 and PIN2.

1

OFF OFF OFF OFF

2. Connect the voltmeter at the TB3 connector with the positive test probe at the

upper terminal.

3. If available, connect two oscilloscope probes at TP1 (V

output). Connect the ground probes on the primary side, at the TP14 or TP15
Te s t Po in t s .

4. Connect the DC HV power supply in the range of 120–500 VDC at TB1:

- the positive terminal must be connected at the uppermost terminal of the TB1
PCB connector

- the negative terminal must be connected to the bottommost terminal of the TB1
PCB connector (the middle terminal of the TB1 PCB connector is not connected)

5. Read the voltmeter and check if the output voltage of the board is in the range of

4.5V to 5.5V.

6. Check on the oscilloscope screen the V

are presented in Figure 3-1.

voltage and the GATE signal as they

DD

Input) and TP6 (GATE

DD

 2020 Microchip Technology Inc. DS50002932A-page 15

MCP1012 1W Demonstration Board User’s Guide

FIGURE 3-1: MCP1012 V_GATE and V

Hysteretic Voltage Supply at No

DD

Load.

Note that the MCP1012 is hysteretic supplied, between the OVLO

and OVLO

ON

thresholds.

7. Disconnect the DC HV power supply.

3.2 SETUP 1B

INTRODUCTION

This setup will show the functioning of the MCP1012 in Start-Up mode when it is
supplied by the secondary side of the transformer and a load is applied at the output
(the resistor R21 - 68 is connected through SW1.2)

STEPS

1. Connect/disconnect the jumpers and the switch SW1 according to Ta b le 3 -2 .

TABLE 3-2: THE STATE OF THE JUMPERS AND SWITCH - SETUP 1B

J1 J2 J3 J4 J5 J6 J7 JP1 SW1.1 SW1.2 SW1.3 SW1.4

ON OFF ON

1

OFF OFF OFF OFF ON

Note 1: JP1 and J3 connections eliminate the galvanic isolation between the Primary Side

and the Secondary Side of the transformer. Specific safety procedures must be taken
into account. The MCP1012 is supplied from the secondary side of the transformer.
On the board JP1 is connected to PIN1 and PIN2.

2: SW1.2 is the second switch on the right side of the board.

1

OFF ON

2

OFF OFF

OFF

2. Connect the voltmeter at the TB3 connector with the positive test probe at the
upper terminal.

3. If available, connect two oscilloscope probes at TP1 (V

Input) and TP6 (GATE

DD

output). Connect the ground probes on the primary side, at the TP14 or TP15
Te s t Po in t s .

DS50002932A-page 16  2020 Microchip Technology Inc.

Setup One

4. Connect the DC HV power supply in the range of 120–500 VDC at TB1:

- the positive terminal must be connected at the uppermost terminal of the TB1
PCB connector

- the negative terminal must be connected to the bottommost terminal of the TB1
PCB connector (the middle terminal of the TB1 PCB connector is not connected)

5. Read the voltmeter and check if the output voltage of the board is in the range of

4.5V to 5.5V.

6. Check on the oscilloscope screen the V

are presented in Figure 3-2.

.

voltage and the GATE signal as they

DD

FIGURE 3-2: MCP1012 V_GATE and VDD when a Load Is Connected.

7. Disconnect the DC HV power supply.

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MCP1012 1W Demonstration Board User’s Guide

NOTES:

DS50002932A-page 18  2020 Microchip Technology Inc.

MCP1012

1W DEMONSTRATION BOARD

USER’S GUIDE

Chapter 4. Setup Two

4.1 SETUP 2

INTRODUCTION

This setup will show the functioning of the MCP1012 in Start-Up mode when it is
supplied by an external power supply (15V) at V
output (the resistor R20 - 51 is connected through SW1.1).

A voltage greater than 11.5V on V

pin disables the internal HV regulator.

DD

STEPS

1. Connect/disconnect the jumpers and the switch SW1 according to Ta b le 4 -1 .

TABLE 4-1: THE STATE OF THE JUMPERS AND SWITCH - SETUP 2

J1 J2 J3 J4 J5 J6 J7 JP1 SW1.1 SW1.2 SW1.3 SW1.4

ON OFF OFF OFF OFF OFF OFF OFF ON

Note 1: SW1.1 is the first switch on the right side of the board.

pin and a load is applied at the

DD

1

OFF OFF OFF

2. Connect the voltmeter at the TB3 connector with the positive test probe at the

upper terminal.

3. If available, connect two oscilloscope probes at TP6 (GATE output) and TP8 (C/S

input). Connect the ground probes on the primary side, at the TP14 or TP15 Test
Points.

4. Connect the DC power supply 15V at the TB2 connector:

- the positive terminal must be connected at the upper terminal of the TB2 PCB
connector

- the negative terminal must be connected to the bottom terminal of the TB2 PCB
connector

5. Connect the DC HV power supply in the range of 120–500 VDC at the TB1

connector:

- the positive terminal must be connected at the uppermost terminal of the TB1
PCB connector

- the negative terminal must be connected to the bottommost terminal of the TB1
PCB connector (the middle terminal of the TB1 PCB connector is not connected)

6. Read the voltmeter and check if the output voltage of the board is in the range of

4.5V to 5.5V.

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MCP1012 1W Demonstration Board User’s Guide

7. Check on the oscilloscope screen the V_GATE voltage and the C/S signal, as
they are presented in Figure 4-1.

FIGURE 4-1: MCP1012 V_GATE and C/S Voltage.

During the Leading Edge Blanking (LEB) period the spikes on C/S pin are ignored. After
LEB, once the C/S voltage reaches the threshold of 125 mV, the GATE signal is
inhibited.

8. Check on the oscilloscope screen the V_GATE voltage, as it is presented in

Figure 4-2. Set the oscilloscope accordingly.

FIGURE 4-2: MCP1012 V_GATE Voltage.

The value of the resistor connected to LFO pin is 47.5 k. This value conducts to an
LFO period of 1.06 ms or a frequency of 943 Hz. On each LFO period, a number of 16
pulses can be seen.

DS50002932A-page 20  2020 Microchip Technology Inc.

Setup Two

9. Check on the oscilloscope screen the V_GATE voltage, as it is presented in the

Figure 4-3. Set the oscilloscope accordingly.

FIGURE 4-3: MCP1012 V_GATE Voltage, t

After V_GATE signal is inhibited, t

10. Disconnect the DC power supplies.

has a constant interval of 21.0 µs.

OFF

OFF

Interval.

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MCP1012 1W Demonstration Board User’s Guide

NOTES:

DS50002932A-page 22  2020 Microchip Technology Inc.

MCP1012

1W DEMONSTRATION BOARD

USER’S GUIDE

Chapter 5. Setup Three

5.1 SETUP 3

INTRODUCTION

This setup will show the Sleep/Wake-Up functions of the MCP1012 in Start-Up mode
when it is supplied by an external power supply (15V) at V
at the output (the resistor R20 - 51 is connected through SW1.1).

The Sleep/Wake-Up functions are active in both Start-Up and Normal Run mode.

STEPS

1. Connect/disconnect the jumpers and the switch SW1 according to Ta b le 5 -1 .

TABLE 5-1: THE STATE OF THE JUMPERS AND SWITCH - SETUP 3

J1 J2 J3 J4 J5 J6 J7 JP1 SW1.1 SW1.2 SW1.3 SW1.4

ON OFF OFF OFF ON OFF ON OFF ON

Note 1: SW1.1 is the first switch on the right side of the board.

1

pin and a load is applied

DD

OFF OFF OFF

2. Connect the voltmeter at the TB3 connector with the positive test probe at the

upper terminal.

3. If available, connect two oscilloscope probes at TP6 (GATE output) and TP4

(PULSE input). Connect the ground probes on the primary side, at the TP14 or
TP15 Test Points.

4. Connect the DC power supply 15V at the TB2 connector:

- the positive terminal must be connected at the upper terminal of the TB2 PCB
connector

- the negative terminal must be connected to the bottom terminal of the TB2 PCB
connector

5. Connect the DC power supply 5.0V at the TB4 connector:

- the positive terminal must be connected at the upper terminal of the TB4 PCB
connector

- the negative terminal must be connected to the bottom terminal of the TB4 PCB
connector

6. Connect a DC HV power supply in the range of 120–500 VDC at the TB1

connector:

- the positive terminal must be connected at the uppermost terminal of the TB1
PCB connector

- the negative terminal must be connected to the bottommost terminal of the TB1
PCB connector (the middle terminal of the TB1 PCB connector is not connected)

7. Read the voltmeter and check if the output voltage of the board is in the range of

4.5V to 5.5V.

 2020 Microchip Technology Inc. DS50002932A-page 23

MCP1012 1W Demonstration Board User’s Guide

8. Push the push button SW2 and check on the oscilloscope screen the V_GATE
voltage and the PULSE signal, as they are presented in Figure 5-1 and

Figure 5-2.

FIGURE 5-1: MCP1012 Sleep Command.

Five pulses applied on PULSE pin negative edge at 500 kHz activate the Sleep
function of the MCP1012.

FIGURE 5-2: MCP1012 Sleep Command (Figure 5-1 Detail).

9. Read the voltmeter and check if the output voltage is 0V.

DS50002932A-page 24  2020 Microchip Technology Inc.

Setup Three

10. Push the push button SW2 again and check on the oscilloscope screen if the

V_GATE voltage and the PULSE signal are as they are presented in Figure 5-3
and Figure 5-4.

FIGURE 5-3: MCP1012 Wake-Up Command.

The Wake-Up command consists of a single valid PWM Pulse.

FIGURE 5-4: MCP1012 Wake-Up Command (Figure 5-3 Detail).

If the external PWM signal ceases for a period greater than 260 μs typical, then the
gate driver will be driven by the internal current regulator (return to Start-Up mode).

11. Read the voltmeter and check if the output voltage of the board is in the range of

4.5V to 5.5V.

12. Disconnect the DC power supplies.

 2020 Microchip Technology Inc. DS50002932A-page 25

MCP1012 1W Demonstration Board User’s Guide

NOTES:

DS50002932A-page 26  2020 Microchip Technology Inc.

6.1 SETUP 4A

INTRODUCTION

STEPS

MCP1012

1W DEMONSTRATION BOARD

USER’S GUIDE

Chapter 6. Setup Four

This setup will show the functioning of the MCP1012 in Normal Run mode when an
external command is applied at PULSE pin and the C/S pin voltage does not reach the
COMP1 Reference (252 mV).

When a valid PWM signal in the 20-65 kHz frequency range is detected on the PULSE
pin and the internal HV regulator is turned off by applying a voltage greater than 11.5V
typical on the V
pin and not by the internal signal. The COMP1 Reference threshold during external
command switches from 125 mV to 252 mV typical.

pin, the MCP1012’s gate driver is driven by the signal at the PULSE

DD

1. Connect/disconnect the jumpers and the switch SW1 according to Ta b le 6 -1 .

TABLE 6-1: THE STATE OF THE JUMPERS AND SWITCH - SETUP 4A

J1 J2 J3 J4 J5 J6 J7 JP1 SW1.1 SW1.2 SW1.3 SW1.4

ON OFF OFF OFF ON OFF OFF OFF OFF OFF OFF OFF

2. Connect at the jumper J4 an external load consisting of a 10, min. 3W resistor.

3. Connect at the jumper J6 the output of the signal generator with the next setup:

square waveform, minimum voltage 0V, maximum voltage +5.0V, frequency
20 kHz, duty cycle 75%.

4. Connect three oscilloscope probes at TP4 (PULSE input), TP6 (GATE output),

and TP8 (C/S input). Connect the ground probes on the primary side, at the TP14
or TP15 Test Points.

5. Connect a DC power supply 15V at the TB2 connector:

- the positive terminal must be connected at the upper terminal of the TB2 PCB
connector

- the negative terminal must be connected to the bottom terminal of the TB2 PCB
connector

6. Connect a 120 VDC DC HV power supply at TB1:

- the positive terminal must be connected at the uppermost terminal of the TB1
PCB connector

- the negative terminal must be connected to the bottommost terminal of the TB1
PCB connector (the middle terminal of the TB1 PCB connector is not connected)

7. Activate the output of the signal generator

 2020 Microchip Technology Inc. DS50002932A-page 27

MCP1012 1W Demonstration Board User’s Guide

8. Check on the oscilloscope screen the signals V_PULSE, V_GATE and V_C/S as
they are presented in Figure 6-1

FIGURE 6-1: V_PULSE, V_GATE and V_CS when COMP1 Reference Is Not Reached.

When a valid PWM signal in the 20–65 kHz frequency range is applied the MCP1012’s
gate driver is driven by the signal at the PULSE pin and not by the internal signal. The
COMP1 Reference threshold during external command switches from 125 mV to
252 mV typical.

9. Disconnect the DC power supplies.

10. Disconnect the load at J4.

6.2 SETUP 4B

INTRODUCTION

This setup will show the functioning of the MCP1012 in Normal Run mode when an
external command is applied at PULSE pin and the C/S pin voltage reaches the
COMP1 Reference (252 mV).

STEPS

1. Connect/disconnect the jumpers and the switch SW1 according to Ta b le 6 -2 .

TABLE 6-2: THE STATE OF THE JUMPERS AND SWITCH - SETUP 4B

J1 J2 J3 J4 J5 J6 J7 JP1 SW1.1 SW1.2 SW1.3 SW1.4

ON OFF OFF OFF ON OFF OFF OFF OFF OFF OFF OFF

2. Connect at the jumper J4 an external load consisting of a 10, min 3W resistor.

3. Connect at the jumper J6 the output of the signal generator with the next setup:
square waveform, minimum voltage 0V, maximum voltage +5.0V, frequency
20 kHz, duty cycle 30%.

4. Connect three oscilloscope probes at TP4 (PULSE input), TP6 (GATE output),
and TP8 (C/S input). Connect the ground probes on the primary side, at the TP14
or TP15 Test Points.

5. Connect a DC power supply 15V at the TB2 connector:

DS50002932A-page 28  2020 Microchip Technology Inc.

Setup Four

- the positive terminal must be connected at the upper terminal of the TB2 PCB
connector

- the negative terminal must be connected to the bottom terminal of the TB2 PCB
connector

6. Connect a 120 VDC DC HV power supply at TB1:

- the positive terminal must be connected at the uppermost terminal of the TB1
PCB connector

- the negative terminal must be connected to the bottommost terminal of the TB1
PCB connector (the middle terminal of the TB1 PCB connector is not connected)

7. Activate the output of the signal generator.

8. Check on the oscilloscope screen the signals V_PULSE, V_GATE, and V_C/S

as they are presented in Figure 6-2.

FIGURE 6-2: V_PULSE, V_GATE, and V_CS when the COMP1 Reference Is Reached.

When the voltage on the C/S pin reaches the COMP1 reference (typ. 252 mV), the
Gate command is turned off even if the PULSE logic state is Low.

9. Disconnect the DC power supplies.

 2020 Microchip Technology Inc. DS50002932A-page 29

MCP1012 1W Demonstration Board User’s Guide

NOTES:

DS50002932A-page 30  2020 Microchip Technology Inc.

MCP1012

1W DEMONSTRATION BOARD

USER’S GUIDE

Chapter 7. Setup Five

7.1 SETUP 5

INTRODUCTION

This setup will show the functioning of the MCP1012 in Start-Up mode when a short
circuit is created on the secondary side of the transformer.

STEPS

1. Connect/disconnect the jumpers and the switch SW1 according to Ta b le 7 -1 .

TABLE 7-1: THE STATE OF THE JUMPERS AND SWITCH - SETUP 5

J1 J2 J3 J4 J5 J6 J7 JP1 SW1.1 SW1.2 SW1.3 SW1.4

ON OFF OFF ON OFF OFF OFF ON

Note 1: JP1 connection eliminates the galvanic isolation between the Primary Side and the

Secondary Side of the transformer. Specific safety procedures must be taken into
account.

2: SW1.1 is the first switch on the right side of the board.

1

ON

2

OFF OFF OFF

2. Connect a voltmeter at the TB3 connector with the positive test probe at the

upper terminal.

3. If available, connect two oscilloscope probes at TP6 (GATE output) and TP12.

Connect the ground probes on the primary side, at the TP14 or TP15 Test Points.

4. Connect a DC power supply 15V at the TB2 connector:

- the positive terminal must be connected at the upper terminal of the TB2 PCB
connector

- the negative terminal must be connected to the bottom terminal of the TB2 PCB
connector

5. Connect a DC HV power supply in the range of 120–500 VDC at the TB1

connector:

- the positive terminal must be connected at the uppermost terminal of the TB1
PCB connector

- the negative terminal must be connected to the bottommost terminal of the TB1
PCB connector (the middle terminal of the TB1 PCB connector is not connected)

6. Read the voltmeter and check if the output voltage of the board is 0V.

 2020 Microchip Technology Inc. DS50002932A-page 31

MCP1012 1W Demonstration Board User’s Guide

7. Check on the oscilloscope screen the V_GATE voltage during the short circuit
condition as it is presented in Figure 7-1.

FIGURE 7-1: MCP1012 V_GATE Voltage during a Short Circuit Condition.

8. Disconnect the DC power supplies.

9. Disconnect the jumper J4.

10. Reconnect the DC power supplies.

Check the functionality of the MCP1012 by running the setups described in this user’s
guide.

DS50002932A-page 32  2020 Microchip Technology Inc.

Appendix A. Schematic and Layouts

A.1 INTRODUCTION

This appendix contains the following schematic and layouts for the MCP1012 1W
Demonstration Board:

• Board – Schematic

• Board – Top Silk

• Board – Top Copper and Silk

• Board – Top Copper

• Board – Bottom Copper

• Board – Bottom Copper and Silk

• Board – Bottom Silk

MCP1012

1W DEMONSTRATION BOARD

USER’S GUIDE

 2020 Microchip Technology Inc. DS50002932A-page 33

DS50002932A-page 34  2020 Microchip Technology Inc.

GND GND

GND

GND

2.49K
1206
1%

R4A

2.49K
1206
1%

R5A

2.49K
1206
1%

R6A

2.49K
1206
1%

R7A

2.49K
1206
1%

R8

2.49K
1206
1%

R9

2.49K
1206
1%

R10

2.49K
1206
1%

R11

1R
0805
5%

R12

10R
0805
1%

R13

0.1R
0805
1%

DNP

R14C

0.1R
0805
1%

DNP

R14D

GND

330pF
200V
0603

C5

10R
1206
5%

R15

0.05R
0612
1%

R16

GNDS

1R
2010
1%

R17A

1R
2010
1%

R17B

330k
0805
1%

R18

100k
0805
5%

R19

68R
2010
5%

R21

220R
2010
5%

R22

VDD

GND

1 8

2 7

3 6

4 5

SW1

220R
2010
5%

R23

GND

BAT46W

D5

VDD

7

10

2

5

SEC

7.5V-200mA

6

8

120-375Vdc

20kHz

1

4

750318391

TR1

12

HDR-2.54 Male 1x2

J3

2.2uF
16V
0805

C8

1 2

HDR-2.54 Male 1x2

J4

12

HDR-2.54 Male 1x2

TP5

12

TP14

GND

12

HDR-2.54 Male 1x2

J2

GND

GND

12

TERMINAL 1x2

TB2

VDD_EXT

GND

12

TP2

1 2

TP1

1 2

TP4

1 2

TP3

12

TP6

12

TP7

12

TP8

12

TP9

1 2

TP10

12

TP11

12

TP12

12

TP13

GND

12

TP1512TP1612TP17

SMAJ22A

D3

GND

P6KE510

D4

GND

1uF
50V
0805

C7

330uF
50V

CAP_AL_G

C6

47k
0805
1%

R3

1.5R
0805
1%

R14A

1.6R
0805
1%

R14B

US1M

D1

US1M

D2

US1M

D7

RED

D10

GREEN

D11

0.1uF
50V
0805

C11

680R
0805
1%

R28

560R

0805

R29

10R

R30

10000pF

C10

12

EG4576

SW2

100k

R27

5.1V

D12

12

HDR-2.54 Male 1x2

J5

GNDGND

GND

390R
0805
5%

DNP

R25

12

HDR-2.54 Male 1x2

J7

12

HDR-2.54 Male 1x2

J6

GNDSIG

External PWM drive

1 2

TERMINAL 1x2

TB4

External 5V Supply

330R
1206
5%

R24

DC Input Voltage

(+)

(-)

1 2

TERMINAL 1x2

TB3

1

2

3

TERMINAL 1x3

TB1

(NC)

3

NC

4

2

GND

5

6

NC

7

VCC8NC

1

HCPL-2202

U4

1.5k
0805
1%

R26

0R
1206

DNP

R4B

0R
1206

DNP

R5B

0R
1206

DNP

R6B

0R
1206

DNP

R7B

2A

P5.08D8.5H8

F1

18V

D8

0.47uF
50V
0805

C9

3 2

1

TLV431A-D

U5

1

2

3

BC807

T2

18k
0805
1%

R31

4.7k
0805
5%

R33

5.6k
0805
1%

R34

1.3k
0805
1%

R32

1000pF
50V

0805

C13

330R
1206
5%

R35A

330R
1206
5%

R35B

330R
1206
5%

R35C

330R
1206
5%

R35D

1 2

J1

TB = Terminal Block

TP = Test Point

J = Jumper

D3087-98

JP1

1

H3185-05

PIN1

1

H3185-05

PIN2

JP1 is a link between PIN1 and PIN2

2R
2010
5%

R2A

2R
2010
5%

R2B

1500uH

L2

1.5R

1210

1%

R1

2

1

3

IPD90R1K2C3ATMA1

Q1

GATE

4

GND

5

VDD

6

VIN

8

PULSE

1

LFO

2

C/S

3

MCP1012

IC1

GNDS GNDS

GNDS

GNDS

GNDS

GNDS GNDS GNDS

GNDS

GNDSIG

GNDSIG

GNDSIG

GNDSIG GNDSIG GNDSIG GNDSIG

GNDSIG

GNDS GNDS

LABEL Need Help Small

LABEL1

RUBBER PAD 0.50x0.50x0.23

PAD1

RUBBER PAD 0.50x0.50x0.23

PAD2

RUBBER PAD 0.50x0.50x0.23

PAD3

RUBBER PAD 0.50x0.50x0.23

PAD4

2.2uF

C1

1uF
50V
0805

C2

1000pF
2KV

C3

330pF
50V
0603

C4

51R
2010
5%

R20

100uH

L1

DFLS1200-7

D6

1N4148

D13

10uF
10V
0805

C12

MCLR

PICKIT HEADER

ICSPCLK
ICSPDAT

HDR-2.54 Male 1x6

123456

J8

PIC_VDD

PIC_VDD

GNDSIG

PIC_VDD

Switch

10k
0603
1%

R2

PIC_VDD

MCLR

MCLR

ICSPCLK

ICSPDAT

ICSPDAT

ICSPCLK

Switch

GNDSIG

1000pF
50V
0603

C14

RA0/ICSPDAT

1

VSS

2

RA1/ICSPCLK

3

RA2

4

VDD

5

RA3/MCLR/VPP

6

T

VSS

K

V

P

PIC10F322

U1

IN

1

GND

2

EN3NC/ADJ

4

OUT

5

IN

D

EN

O

MIC5235YM5

U2

A.2 BOARD – SCHEMATIC

MCP1012 1W Demonstration Board User’s Guide

UT

NC/ADJ

N

RA0/ICSPDA
RA1/ICSPCL
R
RA3/MCLR/VP

DD

A.3 BOARD – TOP SILK

Schematic and Layouts

A.4 BOARD – TOP COPPER AND SILK

 2020 Microchip Technology Inc. DS50002932A-page 35

MCP1012 1W Demonstration Board User’s Guide

A.5 BOARD – TOP COPPER

A.6 BOARD – BOTTOM COPPER

DS50002932A-page 36  2020 Microchip Technology Inc.

A.7 BOARD – BOTTOM COPPER AND SILK

















  


























 



 
 











Schematic and Layouts

A.8 BOARD – BOTTOM SILK

 2020 Microchip Technology Inc. DS50002932A-page 37

MCP1012 1W Demonstration Board User’s Guide

NOTES:

DS50002932A-page 38  2020 Microchip Technology Inc.

MCP1012

1W DEMONSTRATION BOARD

USER’S GUIDE

Appendix B. Bill of Materials (BOM)

TABLE B-1: BILL OF MATERIALS (BOM)

Qty. Reference Description Manufacturer Part Number

1 C1 Capacitor, film, 2.2 µF 305

VAC 20% radial
P27.5L31.5W14H24.5

2 C2, C7 Capacitor, ceramic, µF 50V

10% X7R, surface mount, 0805

1 C3 Capacitor, ceramic, 1000 pF

2KV 10% X7R surface mount,
1206

1 C4 Capacitor, ceramic, 330 pF

50V 5% C0G surface mount,
0603

1 C5 Capacitor, ceramic, 330 pF

200V 10% X7R surface mount,
0603

1 C6 Capacitor, Alu., 330 µF 50V

20% surface mount, G

1 C8 Capacitor, ceramic, 2.2 µF 16V

10% X7R surface mount, 0805

1 C9 Capacitor, ceramic, 0.47 µF 50V

10% X7R surface mount, 0805

1 C10 Capacitor, ceramic, 10000 pF

25V 10% X7R surface mount,
0603

1 C11 Capacitor, ceramic, 0.1 µF 50V

10% X7R, surface mount,
0805

1 C12 Capacitor, ceramic, 10 µF 10V

10% X5R, surface mount,
0805

1 C13 Capacitor, ceramic, 1000 pF

50V 10% X7R, surface mount,
0805

1 C14 Capacitor, ceramic, 1000 pF

50V 20% X7R, surface mount,
0603

3 D1, D2, D7 Diode, rectifier, US1M 1.7V 1A

1000V DO-214AC_SMA

1 D3 Diode, TVS, SMAJ22A 22V

400W SMD DO-214AC_SMA

1 D4 Diode, TVS, P6KE510 434V

600W DO-214AA_SMB

1 D5 Diode, Schottky, BAT46W-TP

450 mV 10 mA 100V, surface
mount, SOD-123

EPCOS AG B32924C3225M

Murata Electronics
America, Inc.

Johanson Dielectrics Inc. 202R18W102KV4E

KEMET C0603C331J5GACTU

KEMET C0603C331K2RAC7867

Panasonic Electronic
Components

Murata Electronics
America, Inc

Murata Electronics
America, Inc

Panasonic

Cal-Chip Electronics Inc. GMC21X7R104K50NTLF

Taiyo Yuden Co., Ltd. LMK212BJ106KG-T

Murata Electronics North
America

TDK Corporation C1608X7R2A102K080AA

Vishay Dale US1M-E3/61T

Bourns

Micro Commercial
Components Corp. (MCC)

Micro Commercial
Components Corp. (MCC)

®

®

, Inc. SMAJ22A

North

North

North

- ECG ECJ-1VB1E103K

GRM21BR71H105KA12L

EEE-FT1H331AP

GRM21BR71C225KA12L

GRM21BR71H474KA88L

GRM216R71H102KA01D

SMBJP6KE510A-TP

BAT46W-TP

 2019 Microchip Technology Inc. DS50002932A-page 39

MCP1012 1W Demonstration Board User’s Guide

TABLE B-1: BILL OF MATERIALS (BOM) (CONTINUED)

Qty. Reference Description Manufacturer Part Number

1 D6 Diode, Schottky, DFLS1200-7

850 mV 1A 200V POW­ERDI-123

1 D8 Diode, zener, SMAZ18-13-F

18V 1W DO-214AC_SMA

1 D10 Diode, LED, red 2.2V 20 mA

40 mcd, clear, surface mount,
0805

1 D11 Diode, LED, green, 3.1V 20 mA

400 mcd, clear, surface mount,
0805

1 D12 Diode, zener SMAZ5V1-13-F

5.1V 1W DO-214AC_SMA

1 D13 Diode, rectifier, 1N4148 1.25V

150 mA 100V SOD-123

1 F1 Resistor, fuse, 2A 300 VAC,

Slow, radial, TH P5.08D8.5H8

1 IC1 IC MCP1012 SOIC-8 Microchip Technology Inc. MCP1012-V/EKA

24 J1, J2, J3, J4,

J5, J6, J7, TP1,
TP2, TP3, TP4,
TP5, TP6, TP7,
TP8, TP9,
TP10, TP11,
TP12, TP13,
TP14, TP15,
TP16, TP17

1 JP1 Mechanical, hardware, jumper,

1 L1 Inductor, 100 µH 0.79A 20%,

1 LABEL1 Label, assembly with rev. level

1 L2 Inductor 1500 µH 810 mA

4PAD1, PAD2,

PAD3, PAD4

1PCB1

2 PIN1, PIN2 Connector, receptacle, 1pin AU

1 Q1 Transistor FET N-Channel

1 R1 Resistor, TKF 1.5R 1% 1/3W,

1 R2 Resistor, TF 10k 1% 1/16W

2 R2A, R2B Resistor, TKF 2R 5% 3/4W,

Connector, header-2.54 male
1x2 Gold 5.84 MH TH, vertical

6.35 mm 1x2 D3087-98

surface mount, L7.3W7.3H4.5

(small modules) per MTS-0002

10%, surface mount,
L12.3W12.3H10

Mechanical, hardware, rubber
pad, SQ, taper 0.50x0.50x0.23
black

MCP1012 Demonstration
Board - printed circuit board

H3185-05 THT

IPD90R1K2C3ATMA1 900V

5.1A 1.2R 83W TO-252-3

surface mount, 1210

surface mount, 0603

surface mount, 2010

Diodes Incorporated

Diodes Incorporated SMAZ18-13-F

Dialight Corporation 598-8110-107F

QT-Brightek Corporation
(QTB)

Diodes Incorporated SMAZ5V1-13-F

Micro Commercial
Components Corp. (MCC)

Littelfuse

Amphenol Commercial 77311-118-02LF

Harwin Plc. D3087-98

Wurth Electronik 744777920

——

Coilcraft MSS1210-155KEB

3M SJ-5518

Microchip Technology Inc.

Harwin Plc. H3185-05

Infineon Technologies AG IPD90R1K2C3ATMA1

Stackpole Electronics, Inc. RMCF1210FT1R50

TE Connectivity CPF0603F10KC1

Panasonic - ECG ERJ-12ZYJ2R0U

®

®

DFLS1200-7

QBLP631-IG

1N4148W-TP

38312000000

04-11027-R1

DS50002932A-page 40  2019 Microchip Technology Inc.

Bill of Materials (BOM)

TABLE B-1: BILL OF MATERIALS (BOM) (CONTINUED)

Qty. Reference Description Manufacturer Part Number

1 R3 Resistor, TKF 47k 1% 1/8W,

surface mount, 0805

8 R4A, R5A, R6A,

R7A, R8, R9,
R10, R11

1 R12 Resistor, TKF 1R 5% 1/8W,

2 R13, R30 Resistor, TKF 10R 1% 1/8W,

1 R14A Resistor, TKF 1.5R 1% 1/8W,

1 R14B Resistor, TKF 1.6R 1% 1/8W,

1 R15 Resistor, TKF 10R 5% 1/4W,

1 R16 Resistor, TF 0.05R 1% 1W,

2 R17A, R17B Resistor, TKF 1R 1% 3/4W,

1 R18 Resistor, TKF 330k 1% 1/8W,

2 R19, R27 Resistor, TKF 100k 5% 1/8W,

1 R20 Resistor, TKF 51R 5% 3/4W,

1 R21 Resistor, TKF 68R 5% 3/4W,

1 R22 Resistor, TKF 220R 5% 3/4W,

5 R24, R35A,

R35B, R35C,
R35D

1 R26 Resistor, TKF 1.5k 1% 1/8W,

1 R28 Resistor, TKF 680R 1% 1/8W,

1 R29 Resistor, TKF 560R 1% 1/8W,

1 R31 Resistor, TKF 18k 1% 1/8W,

1 R32 Resistor, TKF 1.3k 1% 1/8W,

1 R33 Resistor, TKF 4.7k 5% 1/8W

1 R34 Resistor, TKF 5.6k 1% 1/8W,

1 SW1 Switch, DIP 4 SPST 24V

Resistor, TKF 2.29k 1% 1/4W,
surface mount, 1206

surface mount, 0805

surface mount, 0805

surface mount, 0805

surface mount, 0805 AEC-Q200

surface mount, 1206

surface mount, 0612

surface mount, 2010

surface mount, 0805 AEC-Q200

surface mount, 0805

surface mount, 2010

surface mount, 2010

surface mount, 2010

Resistor, TKF 330R 5% 1/4W,
surface mount, 1206

surface mount, 0805

surface mount, 0805

surface mount, 0805

surface mount, 0805

surface mount, 0805

surface mount, 0805

surface mount, 0805

100 mA 1-1825059-3, surface
mount

Stackpole Electronics, Inc. RMCF0805FT47K0

Yageo Corporation RC1206FR-072K49L

Panasonic ERJ-6RQJ1R0V

ROHM Semiconductor MCR10EZHF10R0

TT Electronics ASC0805-1R5FT5

Panasonic ERJ-6RQF1R6V

Yageo Corporation AC1206JR-0710RL

Susumu Co., Ltd PRL1632-R050-F-T1

Vishay Dale CRCW20101R00FKEF

Panasonic ERJ-6ENF3303V

Panasonic ERJ-6GEYJ104V

Panasonic ERJ-12ZYJ510U

Panasonic ERJ-12ZYJ680U

Panasonic ERJ-12ZYJ221U

Panasonic ERJ-8GEYJ331V

Panasonic ERJ-6ENF1501V

Stackpole Electronics, Inc RMCF-1/10-680-1%

Stackpole Electronics, Inc RMCF0805FT560R

Stackpole Electronics, Inc RMCF-1/10-18K-1%

Yageo Corporation RC0805FR-071K3L

Panasonic ERJ-6GEYJ472V

Vishay Dale CRCW08055K60FKEA

TE Connectivity 1-1825059-3

 2019 Microchip Technology Inc. DS50002932A-page 41

MCP1012 1W Demonstration Board User’s Guide

TABLE B-1: BILL OF MATERIALS (BOM) (CONTINUED)

Qty. Reference Description Manufacturer Part Number

1 SW2 Switch, tact. SPST 12V 50mA

TL3302AF180QJ, surface
mount

1 T2 Transistor, BJT, PNP

BC807-16L -45V -500 mA
225 mW SOT-23-3

1 TB1 Connector, terminal 5.08 mm

1x3 female 16-22AWG 10A TH
R/A

1 TB2 Connector, terminal 3.5 mm

1x2 Female 24-16AWG 10A
TH R/A

1 TB3, TB4 Connector, terminal 5 mm 1x2

female 12-26AWG 18A TH R/A

1 TR1 Transistor, power 12:1 7.5V

200R14C, R14D mA 7.6 mH TH

1 U1 Microchip MCU 8-Bit 16 MHz

918B 64B PIC10F322-I/OT
SOT-23-6

1 U2 Microchip Analog LDO ADJ

MIC5235YM5-TR SOT-23-5

1 U4 IC Optoisolator 3.75 kV 5 Mb

HCPL-2202-300E DIP-8 GW

1 U5 IC Power TLV431BSN1T1G

Shunt Voltage Reference
SOT23-3

Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM

used in manufacturing uses all RoHS-compliant components.

E-Switch®, Inc. TL3302AF180QJ

ON Semiconductor

Wurth Electronik 691415520003

Wurth Electronik 691214110002

Phoenix Contact 1935161

Wurth Electronik 750318391

Microchip Technology Inc. PIC10F322-I/OT

Microchip Technology Inc. MIC5235YM5-TR

Broadcom

ON Semiconductor TLV431BSN1T1G

®

®

BC807-16LT1G

HCPL-2202-300E

Table B-2: BILL OF MATERIALS (BOM – DO NOT POPULATE)

Qty. Reference Description Manufacturer Part Number

0 J8 Connector, Header-2.54 male

1x6 gold 5.84 MH TH R/A

DO NOT POPULATE

0R4B, R5B,

R6B, R7B

2 R14C, R14D Resistor, TKF 0.1R 1% 1/8W,

0 R23 Resistor, TKF 220R 5% 3/4W,

0 R25 Resistor, TKF 390R 5% 1/8W,

Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM

used in manufacturing uses all RoHS-compliant components.

Resistor, TKF 0R surface
mount 1206

DO NOT POPULATE

surface mount 0805

DO NOT POPULATE

surface mount, 2010

DO NOT POPULATE

surface mount, 0805

DO NOT POPULATE

Amphenol Commercial 68016-106HLF

Yageo Corporation RC1206JR-070RL

Panasonic - ECG ERJ-L06KF10CV

Panasonic - ECG ERJ-12ZYJ221U

Panasonic - ECG ERJ-6GEYJ391V

DS50002932A-page 42  2019 Microchip Technology Inc.

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DS50002932A-page 43  2020 Microchip Technology Inc.

05/14/19