XT2057 - Silinktek

XT2057 High Accuracy Linear Li-ion Battery Charger

The XT2057 is a complete constant-current/ constant voltage linear charger for cell lithium-ion batteries. Its package and low external component count make the XT2057 ideally suited for portable applications. The charge current can be programmed externally with a single resistor. XT2057 determines the charge mode by detecting the battery voltage: Pre-charge.

Features

 Preset 8.4V Charge Voltage with 1% Accuracy
 Input Voltage: ≥8.8V
 Pre-Charging, the Charge Current is adjustable
 Ideal for Dual-Cell（8.4V）Li-Ion Batteries
 Constant -Current Charging, the Charge Current is adjustable
 Constant-Voltage Charging
 Constant-Current/Constant-Voltage
 Charging with Temperature Monitoring
 Automatic Recharge
 Double LEDs Charge Status Indication
 Available in SOP-8 Package
■ Package
 SOP-8 Rev.1.0 —May. 16, 2011 1 http://www.silinktek.com
■ Pin Assignment XT2057 CHRG1 1 TS 2 GND 3 VOUT 4 8 VIN 7 CHRG2 6 CS 5 PDR1 SOP-8 (TOP VIEW)
■ Absolute Ma.