G5808 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – Single Cell Li-Ion Battery Linear Charger

Global Mixed-mode Technology Inc.
G5808
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
VIN 1
FAULT 2
STATUS 3
TIME 4
GND 5
G5808
Thermal
Pad
10 VBAT
9 TEMP
8 IREF
7 V2P8
6 EN
TDFN3X3-10
VIN 1
FAULT 2
STATUS 3
TIME 4
Thermal
Pad
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.
Ver: 0.7
Aug 09, 2010
TEL: [phone]
http://www.gmt.com.tw
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