G5806 Global Mixed-mode Technology Inc. Single Cell Li-Ion Battery Linear Charger Features General Description The G5806 is a standalone linear Li-Ion battery charger with a complete pre-charge, constant-current and constant-voltage charge loop. No External Power MOSFET, Sense Resistor or Blocking Diode Required 1% Regulation Voltage Accuracy Programmable Constant Charge Current Limit up to 800mA Automatic Recharge Complete Pre-Charge, Constant Current, Constant Voltage and Charge Termination Charge Procedure Support for 5V Power Supply Voltage Internal Input Overvoltage Lockout Protection Circuit (VIN >6.5V) Internal Thermal Protection Circuit TSOT-23-5 Package No external power MOSFET, sense resistor and blocking diode is required due to internal power MOSFET architecture. The charge voltage is regulated at 4.2V, and the charge current is programmable by an external resistor. After the final regulation voltage is reached and the charge current drops to 1/10th the programmed charge current, the open drain NMOS CHRG pin would be turn off automatically without terminating the charge loop. Other features include under voltage lockout, automatic recharge, over temperature protection and a charge status indication pin. Applications MP3 Players Cellular Phones PDAs Hand-Held Devices Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Pb free) G5806TO1U 5806x -40°C ~ +85°C TSOT-23-5 Note: TO: TSOT-23-5 1: Bonding Code U: Tape & Reel Pin Configuration Typical Application Circuit 500mA Single Cell Li-Ion Charger VIN G5806 PROG 1 300Ω 5 G5806 V IN VIN LED 4.5V to 6.5V VIN CHRG 1 µF GND 2 CHRG 3 BAT 1 .5Ω* 4 BAT GND TSOT-23-5 PROG Li-lon Battery 2k *1.5Ω resistor in series with a cera mic capacitor wil l minimize th e start-up volta ge overshoot tra nsien ts TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.3 Oct 31, 2008 1