LP28019B

LP28019B – 01

Aug-2017

www.lowpowersemi.com

Page 2 of 7

Functional Pin Description

Package Type

Pin Configurations

ESOP8

4

3

2

1

5

6

7

8

NC

GND

VIN

NC

ISET

NC

BAT

CHRG

9

ESOP8

TOP VIEW

GND

Pin Description

PIN

No.

PIN

NAME

DESCRIPTION

1

VIN

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

2

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.

3

NC

No Connector.

4

GND

GND is the connection to system ground.

5

ISET

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

6

NC

No Connector.

7

NC

No Connector.

8

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.