G5808

G5808
Global Mixed-mode Technology Inc.
Single Cell Li-Ion Battery Linear Charger
Features
General Description
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The G5808 is a complete standalone linear Li-Ion battery charger with a complete pre-charge, constantcurrent and constant-voltage charge loop.
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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
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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
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