ACE4056P Datasheet, PDF (1/9 Pages) ACE Technology Co., LTD. – 100mA, Single Li-ion Battery Charger

ACE4056P
100mA, Single Li-ion Battery Charger
Description
The ACE4056P is a complete constant-current/ constant voltage linear charger for single cell
Lithium-Ion batteries. No external sense resistor is needed, and no blocking diode is required due to the
internal MOSFET architecture. The charge voltage is fixed at 4.2V or 4.35V, and the charge current can
be programmed externally with a single resistor.
The ACE4056P automatically terminates the charge cycle when the charge current drops to 1/10 the
programmed value after the final float voltage is reached.
When the input supply (wall adapter or USB supply) is removed, the ACE4056P automatically enters a
low current state, dropping the battery drain current to less than 0.5uA.
The ACE4056P is available in a small package with SOT-23-5. Standard product is Pb-Free.
Features
 Programmable Charge Current Up to 100mA
 Under Voltage Lockout Protection
 Automatic Recharge Threshold 4.05V(Typ.)
 Charge Status Output Pin
 3.0V Trickle Charge Threshold
 Soft-Start Limits Inrush Current
Application
 Wearable Devices
 MP3/MP4 Players
 U-key
 Bluetooth, wireless handsets
 Others portable electronic device
Absolute Maximum Ratings
Symbol
V_CC
V_PROG
V_BAT
V_CHGb
P_DMAX
T_J
Tstg
Tsolder
Items
Input Voltage
PROG Voltage
BAT Voltage
CHGb Voltage
Power Dissipation
SOT23-5
Junction Temperature
Storage Temperature
Package Lead Soldering Temperature
Value
-0.3～6
-0.3～V_CC
-0.3～6
-0.3～V_CC
0.3
-40~125
-55 to 150
260℃, 10s
Unit
V
V
V
V
W
℃
℃
Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability.
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