ver: 0.7 aug 09, 2010 tel: 886-3-5788833 http://www.gmt.com.tw 1 G5808 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 ? 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 tempera- ture 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 applications ? mp3 players ? cellular phones ? pdas ? hand-held devices general description the G5808 is a complete standalone linear li-ion bat- tery 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 up to 2a. after the final regulation voltage is reached and the charge current drops to the pro- grammed 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, auto- matic recharge, an ntc thermistor interface for charging the battery in a safe range, over temperature protection and two charge status indication pins. ordering information order number marking temp. range package (green) G5808re1u 5808 -40 c~ 85 c tdfn3x3-10 G5808r41u 5808 -40 c~ 85 c tqfn3x3-16 G5808r81u 5808 -40 c~ 85 c tqfn4x4-16 note: re: tdfn3x3-10 r 4 : tqfn3x3-16 r8:tqfn4x4-16 1: bonding code u: tape & reel pin configuration note: recommend connecting the thermal pad to the ground or let it keep floating. tdfn3x3-10 4 G5808 1 2 3 8 7 6 thermal pad status vin fault temp vbat v2p8 iref 5 9 10 time gnd en G5808 tqfn3x3-16/tqfn4x4-16 en 1 2 3 4 12 11 10 9 vbat temp imin iref 16 15 14 13 v2p8 gnd toen thermal pad vbat vbat vin vin vin fault status time 5 6 7 8 note: recommend connecting the thermal pad to the ground or let it keep floating. tdfn3x3-10 4 G5808 1 2 3 8 7 6 thermal pad status vin fault temp vbat v2p8 iref 5 9 10 time gnd en tdfn3x3-10 4 G5808 1 2 3 8 7 6 thermal pad status vin fault temp vbat v2p8 iref 5 9 10 time gnd en G5808 tqfn3x3-16/tqfn4x4-16 en 1 2 3 4 12 11 10 9 vbat temp imin iref 16 15 14 13 v2p8 gnd toen thermal pad vbat vbat vin vin vin fault status time 5 6 7 8
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