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| UB2016 Datasheet, PDF (2/13 Pages) Unisonic Technologies – ONE-CELL STANDALONE LINEAR LITHIUM BATTERY CHARGER | |||
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UB2016
 MARKING INFORMATION
PACKAGE
VOLTAGE CODE
Preliminary
SOT-25
AA: 4.2V
MARKING
 PIN CONFIGURATION
CMOS IC
 PIN DESCRIPTION
PIN NO.
1
2
3
4
5
PIN NAME
CHRG
GND
BAT
VCC
PROG
DESCRIPTION
Open-Drain Charge Status Output. When the battery is charging, the CHRG pin is
pulled low by an internal N-channel MOSFET. When the charge cycle is completed, a
weak pull-down of approximately 20uA is connected to the CHRG pin, indicating an âAC
presentâ condition.
Ground.
Charge Current Output. Provides charge current to the battery and regulates the final
float voltage to 4.2V.
Positive Input Supply Voltage. Provides power to the charger. VCC can range from
4.25V to 6.5V and should be bypassed with at least a 1μF capacitor.
Charge Current Program, Charge Current Monitor and Shutdown Pin.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 13
QW-R502-869.a
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