LP4066-00

Jan.-2019

www.lowpowersemi.com

Page 2 of 7

Preliminary Datasheet

LP4066

Functional Pin Description

Package Type

Pin Configurations

LP4066AB6F

SOT23-5

1

3

5

4

CHRG

ISET

SOT23-5

TOP VIEW

2

GND

BAT

VIN

Pin Description

No.

NAME

DESCRIPTION

1

CHRG

Open-Drain Charge Status Output. When the battery is charging, the CHRG pin is

pulled low by an internal NMOS. When the charge cycle is completed, the pin could

be pulled High by an external pull high resistor.

2

GND

GND is the connection to system ground.

3

BAT

BAT is the connection to the battery. Typically a 10µF Tantalum capacitor is needed

for stability when there is no battery attached. When a battery is attached, only a 1uF

ceramic capacitor is required.

4

VIN

VIN is the input power source. Connect to a wall adapter.

5

ISET

Charge Current Program. The charge current is programmed by connecting a 1%