Texas Instruments BQ24351EVM User Manual Download Page 6

Bill of Materials, Board Layout, and Schematic

www.ti.com

4

Bill of Materials, Board Layout, and Schematic

4.1

Bill of Materials

Table 1. Bill of Materials

bq24351

RefDes

Value

Description

Size

Part Number

MFR

1

C1

1 µF

Capacitor, ceramic, 35-V, X5R, 10%

603

Std

Std

3

C2, C3, C5

1 µF

Capacitor, ceramic, 10-V, X7R, 10%

603

Std

Std

1

C4

0.1 µF

Capacitor, ceramic, 16-V, X7R, 10%

805

Std

Std

1

C6

0.1 µF

Capacitor, ceramic, 10-V, X7R, 10%

603

Std

Std

1

C7

220 µF

Capacitor, electrolytic, 25-V, 20%

0.327 inch × 0.327

UUD1E221MNL1GS Nichicon

inch (8.3 mm × 8.3
mm)

1

D1

BZT52C6V8S

Diode, zener, 200-mW, 6.8-V

SOD-323

BZT52C6V8S

General

3

D2, D3, D6

Green

Diode, LED, green, 2.1-V, 20-mA, 6-mcd

603

LTST-C190GKT

LITE-ON

2

D4, D7

Red

Diode, LED, red, 2.1-V, 20-mA, 6-mcd

603

LTST-C190CKT

Lite-On

1

D5

BAT54C

Diode, dual Schottky, 200-mA, 30-V

SOT23

BAT54C

Vishay/LITE-
ON

2

J1, J4

ED1514/2DS

Terminal block, 2-pin, 6-A, 3.5-mm

0.27 inch × 0.25

ED1514/2DS

OST

inch (6.86 mm ×
6.35 mm)

2

J2, J3

ED1516/4DS

Terminal block, 4-pin, 6-A, 3.5-mm

0.55 inch × 0.25

ED1516/4DS

OST

inch (14 mm × 6.35
mm)

5

JP1, JP4, JP5,

PEC02SAAN

Header, 2-pin, 100-mil (2.54-mm) spacing

0.100 inch (2.54

PEC02SAAN

Sullins

JP6, JP7

mm) × 2

2

JP2, JP3

PTC03SAAN

Header, male 3-pin, 100-mil (2.54-mm) spacing,

0.100 inch (2.54

PTC03SAAN

Sullins

(36-pin strip)

mm) × 3

5

929950-00

Shorting jumpers, 2-pin, 100-mil (2.54-mm)

929950-00

3M/ESD

spacing

2

R1, R2

0

Resistor, chip, 1/16-W, 1%

402

Std

Std

0

R3, R4

0

Resistor, chip, 1/16-W, 1%

402

Std

Std

2

R5, R6

200 k

Ω

Resistor, chip, 1/16-W, 5%

402

Std

Std

2

R7, R8

200 k

Ω

Resistor, chip, 1/16-W, 5%

603

Std

Std

2

R9, R10

0.2

Ω

Resistor, metal film, 1/4-W, 1%

1206

Std

Std

1

R11

20 k

Ω

Resistor, chip, 1/16-W, 5%

603

Std

Std

1

R12

100 k

Ω

Resistor, chip, 1/16-W, 5%

603

Std

Std

1

R13

100

Ω

Resistor, chip, 1/16-W, 5%

603

Std

Std

1

R14

6.2 k

Ω

Resistor, chip, 1/16-W, 5%

603

Std

Std

4

R15, R16, R17,

1.5 k

Ω

Resistor, chip, 1/16-W, 5%

603

Std

Std

R18

1

R19

51

Ω

Resistor, chip, 1/16-W, 5%

603

Std

Std

4

6-32 NYL nuts

NY HN 632

H620-ND

Building
Fasteners

4

ST1, ST2, ST3,

4816

Standoff, M/F, hex 6-32 NYL, 0.500 inch (12.7

sf_thvt_325_rnd

4816

Keystone

ST4

mm)

8

TP1, TP2, TP3,

White

Test point, white, thru hole, color-keyed

0.100 × 0.100 inch

5002

Keystone

TP4, TP5, TP6,

(2.54 mm × 2.54

TP7, TP8

mm)

1

TP9

White

Test point, white, thru hole, color-keyed

0.100 × 0.100 inch

5001

Keystone

(2.54 mm × 2.54
mm)

1

U1

bq24351DSG

IC, overvoltage and overcurrent charger front-end

SON-8

bq24351DSG

TI

1

U2

bq2057CSN

IC, charge management, one- or two-cell Li-Ion

SOIC(SN)

bq2057CSN

TI

or Li-Pol charger

1

HPA666

PCB, 2.8-inch × 2.8-inch × 0.062-inch (7.11-cm ×

PCB

Any

7.11-cm × 1.58-mm)

Notes: 1. Number 0 in left side columns means do not use this component.

2. Std in part number column means standard manufacturer’s part number.

6

bq24351EVM for Li-Ion Charger Front-End Protection IC

SLUU455 – October 2010

Submit Documentation Feedback

Copyright © 2010, Texas Instruments Incorporated

Summary of Contents for BQ24351EVM

Page 1: ...d Operating Conditions 3 2 Test Summary 3 2 1 Definitions 3 2 2 Equipment 3 2 3 Equipment Setup 4 2 4 Procedure 5 3 PCB Layout Guideline 5 4 Bill of Materials Board Layout and Schematic 6 4 1 Bill of...

Page 2: ...351 DSG Evaluation module for bq2057C charger integrated circuit IC Input operating range for bq24351 4 5 V 26 V Input overvoltage protection Input overcurrent protection Battery overvoltage protectio...

Page 3: ...oard On the test procedure the following naming conventions are followed See the schematic for details VXXX External voltage supply name VIN VBAT VOUT LOADW External load name LOADR LOADI V TPyyy Volt...

Page 4: ...tup 1 Set PS 1 for 0 V 100 mVdc 2 0 1 A current limit and then disable the output 2 Connect the output of PS 1 to J1 DC DC 3 Connect a voltage meter across J1 DC DC 4 Connect the output of load 1 in s...

Page 5: ...the voltage of PS 1 to 0 V 0 1 V 3 PCB Layout Guideline 1 It is critical that the exposed thermal pad on the back side of the bq24351 package be soldered to the printed circuit board PCB ground Ensure...

Page 6: ...929950 00 3M ESD spacing 2 R1 R2 0 Resistor chip 1 16 W 1 402 Std Std 0 R3 R4 0 Resistor chip 1 16 W 1 402 Std Std 2 R5 R6 200 k Resistor chip 1 16 W 5 402 Std Std 2 R7 R8 200 k Resistor chip 1 16 W...

Page 7: ...aterials Board Layout and Schematic 4 2 Board Layout Figure 2 Top Layer 7 SLUU455 October 2010 bq24351EVM for Li Ion Charger Front End Protection IC Submit Documentation Feedback Copyright 2010 Texas...

Page 8: ...ials Board Layout and Schematic www ti com Figure 3 Bottom Layer 8 bq24351EVM for Li Ion Charger Front End Protection IC SLUU455 October 2010 Submit Documentation Feedback Copyright 2010 Texas Instrum...

Page 9: ...l of Materials Board Layout and Schematic Figure 4 Top Silk Screen 9 SLUU455 October 2010 bq24351EVM for Li Ion Charger Front End Protection IC Submit Documentation Feedback Copyright 2010 Texas Instr...

Page 10: ...ials Board Layout and Schematic www ti com Figure 5 Top Assembly 10 bq24351EVM for Li Ion Charger Front End Protection IC SLUU455 October 2010 Submit Documentation Feedback Copyright 2010 Texas Instru...

Page 11: ...it is operational www ti com Bill of Materials Board Layout and Schematic 4 3 Schematic Figure 6 bq24351 Schematic 11 SLUU455 October 2010 bq24351EVM for Li Ion Charger Front End Protection IC Submit...

Page 12: ...uct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer...

Page 13: ...h statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury...

Reviews: