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PDF G5805 Data sheet ( Hoja de datos )
| Número de pieza | G5805 | |
| Descripción | Single Cell Li-Ion Battery Linear Charger | |
| Fabricantes | Global Mixed-mode Technology | |
| Logotipo |  |
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Global Mixed-mode Technology
G5805
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 Thermal Protection Circuit
TSOT-23-5 Package
Applications
MP3 Players
Cellular Phones
PDAs
Hand-Held Devices
General Description
The G5805 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 1/10th 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
G5805TO1U
Note: TO: TSOT-23-5
1: Bonding Code
U: Tape & Reel
Pin Configuration
MARKING
5805x
TEMP. RANGE
-40°C ~ +85°C
PACKAGE
(Green)
TSOT-23-5
Typical Application Circuit
CHRG 1
G5805
5 PROG
GND 2
BAT 3
4 VIN
TSOT-23-5
500mA Single Cell Li-Ion Charger
VIN
300Ω
VIN
4.5V to 6.5V
1µF
G5805
VIN CHRG
LED
1.5Ω*
BAT
GND PROG
Li-lon
Battery
2k
*1.5Ω resistor in series with a ceramic capacitor will
minimize the start-up voltage overshoot transients
Ver: 0.93
May 27, 2013
TEL: 886-3-5788833
http://www.gmt.com.tw
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