LP28014

LP28014 – 00

Oct.-2018

www.lowpowersemi.com

Page 2 of 7

Functional Pin Description

Package Type

Pin Configurations

TDFN-8

VIN

PG

CHRG

BAT

ISET

IBF

1

2

3

Exposed

Pad

EN 4

8

7

6

5 GND

Pin Description

PIN

No.

PIN

NAME

DESCRIPTION

1

VIN

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

2

PG

Open-Drain Status Output. Low indicates the input voltage is above UVLO and the OUT (battery) voltage.

3

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.

4

EN

Charge Enable Input (active low).

5

GND

GND is the connection to system ground.

6

IBF

Charge Status Threshold Program. Connect this pin to an external resistor to program the charge termination

current.

7

ISET

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 1µF ceramic capacitor is required.