LP28013A-01

Oct.-2018

www.lowpowersemi.com

Page 2 of 7

Preliminary Datasheet

LP28013A

Functional Pin Description

Package Type

Pin Configurations

TDFN-10

1

2

3

4

10

9

8

7

VIN

CHRG

PG

EN

BAT

ISET

IBF

NC

TDFN-10

TOP VIEW

5

6

NTC

GND

GND

Pin Description

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

PG

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

voltage.

4

EN

Charge Enable Input (active low).

5

NTC

Negative Thermal Coefficient (NTC) Thermistor Pin.

6

GND

GND is the connection to system ground.

7

NC

No Connector.

8

IBF

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

full current.

9

ISET

10

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.