Texas Instruments BQ24350EVM - BQ24350 DSG EVM for Li-Ion Charger Front-End Protection IC BQ24350EVM BQ24350EVM 데이터 시트
제품 코드
BQ24350EVM
1
Introduction
1.1
General Description
1.2
EVM Features
1.3
I/O Description
1.4
Controls and Key Parameters Setting
Introduction
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The bq2435x evaluation module (EVM) is a complete charger module for evaluating a charger front-end
protection and charger solution using the bq2435x and bq2057C devices. It is designed to deliver up to
560 mA of charge current to Li-ion or Li-polymer applications. The charger front-end protection current is
designed to 1.2 A.
protection and charger solution using the bq2435x and bq2057C devices. It is designed to deliver up to
560 mA of charge current to Li-ion or Li-polymer applications. The charger front-end protection current is
designed to 1.2 A.
The bq2435x protects the charging system against three types of failures: input overvoltage when the ac
adapter fails to regulate its voltage, load overcurrent when failures such as a short circuit occur in the
charging system, and battery overcharge.
adapter fails to regulate its voltage, load overcurrent when failures such as a short circuit occur in the
charging system, and battery overcharge.
For details, see the bq2435x data sheet (
).
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Evaluation module for bq2435x DSG
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Evaluation module for bq2057C charger integrated circuit (IC)
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Input operating range for bq2435x 4.5 V–26 V
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Input operating range for bq24080 4.5 V–6.5 V
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Input overvoltage protection.
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Input overcurrent protection.
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Battery overvoltage protection.
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LED Indication for status signals.
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Test points for key signals available for testing purpose. Easy probe hook-up
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Jumpers available. Easy to change connections
Jack
Description
J1–DC+
AC adapter, positive output
J1–DC–
AC adapter, negative output, ground
J2–FAULT
bq24355 FAULT pin
J2–VBAT
bq2435x VBAT pin
J2–GATDRV
bq2435x GATDRV pin
J2–CHGIN
bq2435x CHGIN pin
J3–BATEN
bq24355 BATEN pin
J3–OUT
bq2435x OUT pin
J3–BAT+
Battery positive output
J3–GND
Ground
J4–BAT+
Connect to battery positive output
J4–BAT–
Connect to battery negative output, ground
Jack
(1)
Description
Factory Setting
JP1
If on, high-side current sensing resistor is disabled
Jumper on
JP2
bq24355 BATEN pin logic input, pull low to enable
Jumper (BATEN, GND) on
JP3
bq2435x GATDRV pin
Jumper off
JP4
bq2057C BAT pin connection to bq2435x
Jumper on
(1)
Short JP1, JP4, JP5, and JP6, and disconnect JP7 to use on board bq2057C as charger; to use external charger to control
bq2435x, disconnect JP1, JP4, JP5, and JP6 and short JP7.
bq2435x, disconnect JP1, JP4, JP5, and JP6 and short JP7.
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bq2435x DSG EVM for Li-Ion Charger Front-End Protection IC
SLUU365 – June 2009