Datasheet > G5805

G5805

更新时间： 2024-11-16 01:23:59

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描述
Single Cell Li-Ion Battery Linear Charger

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中文翻译

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G5805 数据手册

G5805

Global Mixed-mode Technology

Single Cell Li-Ion Battery Linear Charger

Features

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 or

Blocking Diode Required

1% Regulation Voltage Accuracy

Programmable Constant Charge Current Limit

up to 800mA

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^ththe

programmed charge current, the open drain NMOS

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

CHRG pin would be turn off automatically without

terminating the charge loop.

Applications

Other features include under voltage lockout, auto-

matic recharge, over temperature protection and a

charge status indication pin.

MP3 Players

Cellular Phones

PDAs

Hand-Held Devices

Ordering Information

ORDER

NUMBER

G5805TO1U

PACKAGE

MARKING

TEMP. RANGE

(Green)

5805x

-40°C ~ +85°C

TSOT-23-5

Note:TO: TSOT-23-5

1: Bonding Code

U: Tape & Reel

Pin Configuration

Typical Application Circuit

500mA Single Cell Li-Ion Charger

V_IN

300Ω

G5805

V_IN

G5805

LED

4.5V to 6.5V

CHRG

BAT

VIN

PROG

VIN

CHRG

GND

BAT

1µF

1.5Ω

PROG

GND

Li-lon

Battery

TSOT-23-5

1.5Ω resistor in series with a ceramic capacitor will

minimize the start-up voltage overshoot transients

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 0.93

May 27, 2013

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