ver: 0.3 oct 31, 2008 tel: 886-3-5788833 http://www.gmt.com.tw 1 G5806 global mixed-mode technology inc. single cell li-ion battery linear charger features ? 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 applications ? mp3 players ? cellular phones ? pdas ? hand-held devices 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 and block- ing 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 exter- nal resistor. after the final regulation voltage is reached and the charge current drops to 1/10 th 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, auto- matic recharge, over temperature protection and a charge status indication pin. 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 prog tsot-23-5 5 4 1 chrg 2 3 gnd ba t ba t pro g gnd G5806 2k v in 4.5v to 6.5v G5806 vin 1 f 500ma single cell li-ion charger li-lon battery vin chrg 30 0 v in led 1.5 * * 1.5 resistor in series with a ceramic capacitor will minimi ze th e sta rt-up volta ge ove rsho ot tra nsien ts prog tsot-23-5 5 4 1 chrg 2 3 gnd ba t ba t pro g gnd G5806 2k v in 4.5v to 6.5v G5806 vin 1 f 500ma single cell li-ion charger li-lon battery vin chrg 30 0 v in led 1.5 * * 1.5 resistor in series with a ceramic capacitor will minimi ze th e sta rt-up volta ge ove rsho ot tra nsien ts
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