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Bill of Materials, Board Layouts and Schematic

7

Bill of Materials, Board Layouts and Schematic

7.1

Bill of Materials

Table 3. Bill of Materials

Reference

Value

Description

Size

Part Number

MFR

Designator

C1, C4

Open

Capacitor, Ceramic

1206

Std

Std

C2, C5

1.0µF

Capacitor, Ceramic, 25V, X5R, 10%

603

Std

Std

C3

0.1µF

Capacitor, Ceramic, 25V, X7R, 10%

603

Std

Std

D1

ES2AA-13-F

Diode

SMA

ES2AA-13-F

Diodes,
Inc.

Q1

MJD32CT4

Transistor, PNP

DPAK

MJD32CT4

ST

R1, R5, R13, R14,

Open

Resistor, Chip, 1/16W, 1%

603

Std

Std

R15

R2

0.56

Ω

Resistor, Chip, 1/2W, 1%

2010

STD

STD

R3, R6

0

Ω

Resistor, Chip, 1/16W

603

Std

Std

R4

0

Ω

Resistor, Chip, 1/2W

2010

CRCW20100000Z0EF

Vishay

R7

475k

Ω

Resistor, Chip, 1/16W, 1%

603

Std

Std

R8

46.4k

Ω

Resistor, Chip, 1/16W, 1%

603

Std

Std

R9

453

Ω

Resistor, Chip, 1/16W, 1%

603

Std

Std

R10

187

Ω

Resistor, Chip, 1/10W, 1%

603

Std

Std

R11

75.0k

Ω

Resistor, Chip, 1/16W, 1%

603

Std

Std

R12

16.9k

Ω

Resistor, Chip, 1/16W, 1%

603

Std

Std

R16

10.0k

Ω

Resistor, Chip, 1/16W, 1%

603

Std

Std

U1

BQ24450D

IC, INTEGRATED CHARGE

SO-16

BQ24450D

TI

CONTROLLER
FOR LEAD-ACID BATTERIES

7

SLUU464 – November 2010

bq24450EVM

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© 2010, Texas Instruments Incorporated

Содержание BQ24450EVM

Страница 1: ...harge 4 4 2 Max Charge 4 4 3 Charge Termination 4 4 4 Re Charge 4 5 Functions and Features 5 5 1 Changing Output Voltage and Charge Current 5 5 2 Options for External Transistor 6 5 3 Other Options 6...

Страница 2: ...ents limited only by the selection of the external pass transistor The versatile driver for the external pass transistor provides at least 25mA of base drive In addition to the voltage and current reg...

Страница 3: ...2 3 Meters Three Fluke 75 DMMs equivalent or better 3 Equipment Setup The original test setup of HPA691 is shown in Figure 1 1 Set the PS 1 for 10V 1A current limit and then turn off supply Connect P...

Страница 4: ...s is the pre charge current 4 2 Max Charge Adjust PS 2 such that VM 2 shows 6 VDC Using VM 3 measure the voltage across the current sense resistor on Load 1 Multiply this value by a conversion factor...

Страница 5: ...on board resistors R7 R8 R9 R11 R12 See the bq24450 datasheet for information on how to size these resistors If Vout is changed Vin must also be changed Vin should be high enough to allow for the nece...

Страница 6: ...JP3 such that it connects Pin 15 of the IC to the collector of Q1 2 Remove R6 and replace with Rp as calculated on page 13 of the data sheet 5 3 Other Options Disabling Pre Charge Mode The EVM is pop...

Страница 7: ...pen Resistor Chip 1 16W 1 603 Std Std R15 R2 0 56 Resistor Chip 1 2W 1 2010 STD STD R3 R6 0 Resistor Chip 1 16W 603 Std Std R4 0 Resistor Chip 1 2W 2010 CRCW20100000Z0EF Vishay R7 475k Resistor Chip 1...

Страница 8: ...ials Board Layouts and Schematic www ti com 7 2 Board Layout Figure 4 Top Assembly Layer Figure 5 Top PCB Layer 8 bq24450EVM SLUU464 November 2010 Submit Documentation Feedback 2010 Texas Instruments...

Страница 9: ...l of Materials Board Layouts and Schematic Figure 6 Bottom PCB Layer 7 3 Schematic Figure 7 bq24450 EVM Schematic 9 SLUU464 November 2010 bq24450EVM Submit Documentation Feedback 2010 Texas Instrument...

Страница 10: ...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...

Страница 11: ...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...

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