Intersil SL71010BM50EV1Z User Manual

Download

Page 1

User’s Manual

ISL71010BM50EV1Z

High Reliability

User’s Manual: Evaluation Board

Rev 0.00 Oct 2017

Page 2

USER’S MANUAL

ISL71010BM50EV1Z

Evaluation Board

Oct 24, 2017

1. Overview

The ISL71010BM50EV1Z evaluation board measures the performance of the high precision 5.0V ISL71010B50 voltage reference. The reference has a wide input voltage range from 7V to 30V and an initial accuracy of ±0.05%. The voltage noise of 4.2µV makes the ISL71010B50 ideal for high-end applications.

The evaluation board includes voltage input test points (VIN and GND) for a power supply input, as well as a pair of test points for the output (VOUT and GND). The resistor location designated as R designated as C style resistors and C connected to VOUT by installing a jumper at J1.

allow for VOUT output load testing. The R2 resistor location accepts surface mount or through-hole

1.1 Key Features

• Voltage input test points for connection of a power supply

• Convenient output test points to measure VOUT of the voltage reference

•R

and C3 allow for VOUT output load testing

• Additional R-C damper network can be connected at VOUT by installing a jumper at J1

in the 0.1Hz to 10Hz range and maximum output voltage temperature coefficient of 10ppm/°C

P-P

and the capacitor location

comes populated with a 0.1µF load capacitor. Additionally, an R-C damper network can be

UG136

Rev.0.00

1.2 Specifications

This evaluation board has been configured and optimized for the following conditions:

•V

= 7V to 30V

• 10µF and 0.1µF input decoupling capacitors, 1nF compensation capacitor, and 0.1µF load capacitor

•R

load resistance of ≥250Ω

• Selectable 10µF and 2.21kΩ damper network at the output by installing a jumper at J1

• Board temperature: +25°C

1.3 Ordering Information

Part Number Output Voltage (V) Description

ISL71010BM50EV1Z 5.0V Evaluation board

1.4 Related Literature

• For a full list of related documents, visit our website

• ISL71010B50

• ISL71010B25

product page

UG136 Rev.0.00 Page 2 of 12 Oct 24, 2017

Page 3

ISL71010BM50EV1Z 1. Overview

10µF 0.1µF

Chip Select

Serial Clock

Serial Data I/O

VDD VREF

SCLK

SDIO

CSb

OUTxS

GND

DACOUTx

VIN

VREF

0.1µF

OUTxF

DAC

DNC

GND

VOUT

TRIM

DNC

COMP

VIN

Figure 1. ISL71010BM50EV1Z Block Diagram

UG136 Rev.0.00 Page 3 of 12 Oct 24, 2017

Page 4

ISL71010BM50EV1Z 2. Functional Description

2. Functional Description

The ISL71010BM50EV1Z evaluation board provides a simple platform to demonstrate the features and evaluate the performance of the ISL71010B50 voltage reference. It provides easy access to the pins of the ISL71010B50 IC. The schematic, bill of materials, and top silkscreen for the board are shown on pages 6

Figures 8

through 18 show performance data taken using the ISL71010BM50EV1Z evaluation board and basic lab

equipment.

The following sections explain how to use the evaluation board.

2.1 Basic Layout of the Evaluation Board

Refer to Figure 3 on page 6 or the actual ISL71010BM50EV1Z evaluation board for the basic layout.

The schematic of the evaluation board is shown in Figure 4 on page 6 ISL71010B50 voltage reference (U1), input decoupling capacitors (C load capacitor (C loads. The R

). Different resistor values can be applied at (R2) for testing of the voltage reference at different

resistor location accepts surface mount or through-hole style resistors.

The power supply leads attach to TP1 and TP2 (VIN, GND). The ISL71010B50 IC requires a DC supply in the range of 7.0V to 30V for proper operation. The power supply should be capable of delivering 100mA of current.

The output is measured at test points TP3 and TP4 (VOUT, GND), and is best measured with a high precision voltmeter (such as the Agilent 3458A 8 - 1/2 digit multimeter).

The R-C damper network (R

, C4) is populated and can be connected to the reference output by adding a shunt to

the R-C jumper (J1). The damper network improves stability by reducing transient load ringing with high value (>0.47µF) load capacitance.

. The ISL71010BM50EV1Z contains the

through 8.

, C2), a compensation capacitor (C5), and a

2.1.1 Components Parts List

Table 1. Components Parts List

Reference Designator Value Description

U1 ISL71010BMB50Z SOIC 8 Ld package

J1 DNP Damper jumper

10µF Bypass capacitor

0.01µF Bypass capacitor

0.1µF Load capacitor

10µF Damper capacitor

1nF Compensation capacitor

2.21kΩ Damper resistor

DNP Optional load resistor

2.2 Operating Range

The ISL71010B50 IC requires a VIN DC supply in the range of 7.0V to 30V for proper operation. The power supply should be capable of delivering 100mA of current.

The ISL71010B50 IC V load resistor should be selected to be ≥250Ω. Note: With V ≤75mA.

can source 20mA of current and sink -10mA of current. For normal operation the R2

OUT

shorted to ground the IC will limit the current to

OUT

UG136 Rev.0.00 Page 4 of 12 Oct 24, 2017

Page 5

ISL71010BM50EV1Z 2. Functional Description

7V to 30V

DC Power Supply

ISL71010BM50EV1ZEVAL1Z

TP1

VIN

VOUT

LOAD

TP4

GND

TP2

TP3

Precision

Vol tme ter

REV A

2.3 Quick Start Guide

(1) Gather the external supply and equipment needed to operate the board:

(a) 7V to 30V DC power supply.

(b) Precision voltmeter (Agilent 3458A digital multimeter or equivalent).

(2) Attach the evaluation board to a DC power supply at test points TP1 and TP2 labeled VIN and GND as shown

in Figure 2 be capable of delivering 7V to 30V and 100mA of current.

(3) Connect a precision voltmeter at test points TP3 and TP4 labeled VOUT and GND as indicated in Figure 2

(4) Set the supply voltage to 10V.

(5) Turn the DC power supply ON. The voltmeter should read 5.0V ±0.05%.

(6) Change the DC power supply voltage to 20V. The voltmeter should continue to read 5.0V.

(7) Vary the DC power supply voltage over the range of 7V to 30V and the voltmeter should continue to read

5.0V.

(8) Performance at different resistive loads can be evaluated by changing R

. Attach the positive terminal at VIN (TP1) and the negative terminal at GND. The supply should

with different resistor values.

Figure 2. Basic Evaluation Test Setup Block Diagram (Measure V

UG136 Rev.0.00 Page 5 of 12 Oct 24, 2017

of the Voltage Reference)

OUT

Page 6

ISL71010BM50EV1Z 3. PCB Layout Guidelines

GND

LOAD

VIN VOUT

10µF

0.1µF

DNP

TP3

0.1µF

SOIC8

1000pF

TP1

TP4

2.21kΩ

10µF

TP2

3. PCB Layout Guidelines

3.1 ISL71010BM50EV1Z Evaluation Board

Figure 3. ISL71010BM50EV1Z Evaluation Board

3.2 ISL71010BM50EV1Z Evaluation Board Schematic

Figure 4. ISL71010BM50EV1Z Evaluation Board Schematic

UG136 Rev.0.00 Page 6 of 12 Oct 24, 2017

Page 7

ISL71010BM50EV1Z 3. PCB Layout Guidelines

3.3 Bill of Materials

Reference

Qty

Designator Description Mfr

1 - PWB-PCB, ISL71010BM50EV1Z, Rev A, ROHS IMAGINEERING

INC

1 C5 CAP, SMD, 0805, 1000pF, 50V, 10%, X7R, ROHS PANASONIC ECJ-2VB1H102K

2 C2, C3 CAP, SMD, 0805, 0.1µF, 50V, 10%, X7R, ROHS KEMET C0805C104K5RACTU

2 C1, C4 CAP, SMD, 1210, 10µF, 50V, 10%, X5R, ROHS TAIYO YUDEN UMK325BJ106KM-T

2 TP1, TP3 CONN - MINI TEST PT, VERTICAL, RED, ROHS KEYSTONE 5000

2 TP2, TP4 CONN - MINI TEST PT, VERTICAL, BLK, ROHS KEYSTONE 5001

1 J1 CONN-HEADER, 1x2, RETENTIVE, 2.54mm, 0.230 x0.120,

1 U1 IC - PREC. VOLTAGE REFERENCE, 8P, SOIC, 5.0VOUT,

1 R2 RESISTOR, SMD, 0805, DNP - -

1 R1 RESISTOR, SMD, 0805, 2.21kΩ, 1/8W, 1%, TF, ROHS YAGEO RC0805FR-072K21L

1 Place assy in

bag.

1 - LABEL-DATE CODE_LINE 1: YRWK/REV#, LINE 2: BOM

ROHS

BAG, STATIC, 2X3, ZIP LOC - 2X3-STATIC-BAG

NAME

BERG/FCI 69190-202HFL

INTERSIL ISL71010BMB50Z-TK

INTERSIL LABEL-DATE CODE

ISL71010BM50EV1ZREVAPCB

Manufacturer

Part Number

UG136 Rev.0.00 Page 7 of 12 Oct 24, 2017

Page 8

ISL71010BM50EV1Z 3. PCB Layout Guidelines

3.4 Board Layout

Figure 5. Top Layer Figure 6. Bottom Layer

UG136 Rev.0.00 Page 8 of 12 Oct 24, 2017

Figure 7. Top Layer Silk Screen

Page 9

ISL71010BM50EV1Z 4. Typical Performance Curves

4.998

5.000

5.002

5.004

5.006

5.008

5.010

5.012

0 5 10 15 20 25 30 35

OUT

(V)

VIN (V)

5.005V -0.1%

OUT

(V) 0mA +25°C

OUT

(V) 0mA +125°C

OUT

(V) 0mA -55°C

5.005V +0.1%

4.998

5.000

5.002

5.004

5.006

5.008

5.010

5.012

-55

-35

-15 5 25 45 65 85 105 125

5.005V +0.1%

5.005V -0.1%

Unit 2

Unit 1

Unit 4

Unit 5

Unit 3

OUT

(V)

Temperature (°C)

4.998

5.000

5.002

5.004

5.006

5.008

5.010

5.012

0 5

10 15

25 30 35

OUT

(V)

VIN (V)

OUT

(V) 0mA +25°C

OUT

(V) 20mA +25°C

OUT

(V) -10mA +25°C

OUT

(V) 0mA +125°C

OUT

(V) 20mA +125°C

OUT

(V) -10mA +125°C

OUT

(V) 0mA -55°C

OUT

(V) 20mA -55°C

OUT

(V) -10mA -55°C

5.005V -0.1%

5.005V +0.1%

4.9997

4.9998

4.9999

5.0000

5.0001

5.0002

5.0003

5.0004

5.0005

5.0006

5.0007

7 12 17 22 27 32 37

(V)

Unit 3

Unit 2

Unit 1

OUT

(V)

4.9970

4.9975

4.9980

4.9985

4.9990

4.9995

5.0000

5.0005

5.0010

7 12 17 22 27 32 37

(V)

OUT

(V)

+125°C

-40°C

+25°C

4. Typical Performance Curves

Unless otherwise noted: VIN = 10V, I

Figure 8. V

Accuracy Over Temperature Figure 9. 5.005V V

OUT

= 0mA, C

= 0.1µF, COMP = 1nF, TA = +25°C

OUT

Limits Plot

OUT

Figure 10. V

UG136 Rev.0.00 Page 9 of 12 Oct 24, 2017

Figure 11. Line Regulation, Three Units Figure 12. Line Regulation, Three Temperatures

vs VIN AT 0mA, 20mA, and -10mA

OUT

Page 10

ISL71010BM50EV1Z 4. Typical Performance Curves

850

900

950

1000

1050

1100

1150

7 12 17 22 27 32 37

(V)

(µA)

Unit 3

Unit 2

Unit 1

600

700

800

900

1000

1100

1200

1300

7 12 17 22 27 32 37

(V)

(µA)

+125°C

-40°C

+25°C

-2

0 50 100 150 200 250 300 350 400

Time (µs)

OUT

(V)

CL = 0.1µF

-2

0 50 100 150 200 250 300 350 400

CL = 1µF

Time (µs)

OUT

(V)

-80

-70

-60

-50

-40

-30

-20

7 12 17 22 27 32 37

(V)

Current (mA)

+125°C

-40°C

+25°C

100

7 12 17 22 27 32 37

(V)

Current (mA)

+125°C

-40°C

+25°C

Unless otherwise noted: VIN = 10V, I

Figure 13. IIN vs VIN, Three Units Figure 14. IIN vs VIN, Three Temperatures

OUT

= 0mA, C

= 0.1µF, COMP = 1nF, TA = +25°C (Continued)

OUT

Figure 15. Turn-On Time with 0.1µF Figure 16. Turn-On Time with 1µF

UG136 Rev.0.00 Page 10 of 12

Figure 17. Short-Circuit to GND Figure 18. Short-Circuit to V

Oct 24, 2017

Page 11

ISL71010BM50EV1Z 5. Revision History

5. Revision History

Rev. Date Description

0.00 Oct 24, 2017 Initial release

All trademarks and registered trademarks are the property of their respective owners.

Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the

reader is cautioned to verify that the document is current before proceeding.

For information regarding Intersil Corporation and its products, see www.intersil.com

UG136 Rev.0.00 Page 11 of 12 Oct 24, 2017

Page 12

ISL71010BM50EV1Z

UG136