Li+ Charger Protector
APL3203D/E
Li+ Charger Protection IC
Features
• Input Over-Voltage Protection • Programmable Input Over-Current Protec...
Description
APL3203D/E
Li+ Charger Protection IC
Features
Input Over-Voltage Protection Programmable Input Over-Current Protection Battery Over-Voltage Protection Over-Temperature Protection High Immunity of False Triggering High Accuracy Protection Thresholds Fault Status Indication Enable Input Available in TDFN2x2-8 Package Lead Free and Green Devices Available
(RoHS Compliant)
General Description
The APL3203D/E provides complete Li+ charger protections against over-voltage, over-current, and battery overvoltage. The IC is designed to monitor input voltage, input current, and battery voltage. When any of the monitored parameters are over the threshold, the IC removes the power from the charging system by turning off an internal switch. All protections also have deglitch time against false triggering due to voltage spikes or current transients. The APL3203D/E also provides over-temperature protection, a FAULT output pin to indicate the fault conditions, and the EN pin to allow the system to disable the IC.
Applications
Smart Phones and PDAs Digital Still Cameras Portable Devices
Pin Configuration
IN 1 GND 2
NC 3 FAULT 4
EP
TDFN2x2-8 (Top View)
8 OUT 7 ILIM 6 BAT 5 EN
Simplified Application Circuit
5V Adapter or USB
IN
OUT
APL3203D/E
EN FAULT
ILIM BAT GND
Charger Input
Charger Output and System Li+ Battery
Simplified Application
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