FP8102XR-G1

FP8102 1A Linear Li-Ion Battery Charger in SOP8E General Description The FP8102 is a standalone linear Li-ion battery charger with exposed pad SOP8 package. With few external components, FP8102 is well suited for a wide range of portable applications. Charging current can be programmed by an external resistor. In standby mode, supply current will be reduced to around 55uA. Other features include UVLO, automatic recharge, charge status indicators and thermal regulation. Features  Standalone Linear Charger for Single Cell Li-ion Batteries  No External MOSFET, Sense Resistor, or Blocking Diode Required  Up to 1A Programmable Charge Current  Preset Charge Voltage with ±1% Accuracy  Automatic Recharge  2.9V Trickle Charge Voltage  C/10 Charge Termination  55uA Standby Supply Current  Charge Status Indicators for No Battery and Charge Failure Display  Soft-Start to Limit Inrush Current  Thermal Protection Applications  Portable Information Appliances  Charging Docks & Cradles  Cellular Phones & PDAs  Handheld Computers Typical Application Circuit VIN 1 2 TEMP EN PROG CHRG 8 7 FP8102 3 4 GND Vcc STDBY BAT 6 5 Bat+ Bat- Li-ion CELL This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Website: http://www.feeling-tech.com.tw Rev. 0.69 1/19 FP8102 Function Block Diagram STDBY CHRG Vcc Vcc Body Switcher VBAT 145°C - TDie + 80%Vcc BAT - + + + - TEMP + + 45%Vcc + 2.9V - VREF Charging Control GND + VBAT + - 4.05V + 0.1V - + EN 1.0V PROG Charge Status Indicators Charge Status CHRG (Red) STDBY(Green) In Charging ON OFF Charge Termination OFF ON UVLO, OverT, UnderT, NoBat(with TEMP used) OFF OFF This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Website: http://www.feeling-tech.com.tw Rev. 0.69 2/19 FP8102 State Diagram Shutdown Mode Vcc < VUVLO or Vcc < VBAT CHRG =Hi-Impedance STDBY=Hi-Impedance Vcc ≥ VUVLO and Vcc ≥ VBAT +0.1V VBAT ≥ 2.9V Check VBAT VBAT < 2.9V Pre-Charge Mode Charge Current=1/10．IBAT CHRG=Strong Pull-Low STDBY=Hi-Impedance Vcc < VUVLO or Vcc < VBAT VBAT ≥ 2.9V Constant-Current Charge Mode Charge Current=IBAT CHRG=Strong Pull-Low STDBY=Hi-Impedance Vcc < VUVLO or Vcc < VBAT VBAT > 4.05V Constant-Voltage Charge Mode Charge Voltage > 4.05V CHRG=Strong Pull-Low STDBY =Hi-Impedance Vcc < VUVLO or Vcc < VBAT Charge Current