G5808 Global Mixed-mode Technology Inc. Single Cell Li-Ion Battery Linear Charger Features General Description The G5808 is a complete standalone linear Li-Ion battery charger with a complete pre-charge, constantcurrent and constant-voltage charge loop. No External Power MOSFET, Sense Resistor or Blocking Diode Required 1% Regulation Voltage Accuracy Charge Single Cell Li-ion Battery from AC Adapter or USB Port Programmable Constant Charge Current Limit up to 2A Automatic Recharge Complete Pre-Charge, Constant Current, Constant Voltage and Charge Termination Charge Procedure NTC Thermistor Interface for Battery Temperature Detection Internal input Overvoltage Lockout Protection Circuit (VIN >6.5V) Support for 5V Power Supply Voltage Internal Thermal Protection Circuit TDFN3X3-10, TQFN3X3-16 and TQFN4X4-16 Package Available 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 up to 2A. After the final regulation voltage is reached and the charge current drops to the programmed end-of-charge current, the open drain NMOS STATUS pin would be turn off automatically and the charge loop would be terminated after timeout. Other features include under voltage lockout, automatic recharge, an NTC thermistor interface for charging the battery in a safe range, over temperature protection and two charge status indication pins. Ordering Information Applications MP3 Players Cellular Phones PDAs Hand-Held Devices ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) G5808RE1U 5808 -40°C~ 85°C TDFN3X3-10 G5808R41U G5808R81U 5808 5808 -40°C~ 85°C -40°C~ 85°C TQFN3X3-16 TQFN4X4-16 Note: RE: TDFN3X3-10 R8:TQFN4X4-16 1: Bonding Code U: Tape & Reel R 4 : TQFN3X3-16 TEMP STATUS 3 8 IREF TIME 4 7 V2P8 GND 5 6 EN Thermal Pad VIN 1 FAULT 2 STATUS 3 TIME 4 VIN VIN VBAT VBAT 15 14 13 Thermal Pad 8 9 V2P8 2 7 FAULT EN VBAT 6 10 TOEN 1 5 VIN GND G5808 16 Pin Configuration TDFN3X3-10 12 VBAT 11 TEMP 10 IMIN 9 IREF G5808 TQFN3X3-16/TQFN4X4-16 Note: Recommend connecting the Thermal Pad to the Ground or let it keep floating. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.7 Aug 09, 2010 1