LP28400ACQVF datasheet(5/10 Pages) POWER

5 / 10 page

LP28400A – 02

Sep.-2016

Email: marketing@lowpowersemi.com

www.lowpowersemi.com

Page 5 of 10

Preliminary Datasheet

LP28400A

Electrical Characteristics

(TA = 25°C. unless otherwise noted.)

Parameter

Test Conditions

Measured

Limits

Units

Min

Typ

Max

Quiescent current

Internal LDO output

VIN=6V

V(VL)

4.9

5.1

Input voltage regulation

reference

VREG

0.95

1.05

Battery leakage current

VBAT=8.4V, VIN=NC

IBAT

-10

VBAT=8.4V, VIN=5V

-35

Program Charging

Current

From Rs to VBAT

V(RS,VBAT)

47.5

52.5

Charge current limit

VIN=5V

IBATLIMIT

1.5

CV voltage

V(VBAT)

8.4

Recharge threshold

V(VBAT)

300

End of charge threshold

From Rs to VBAT

V(RS,VBAT)

Trickle charge voltage

threshold

V(VBAT)

Trickle charge current

From Rs to VBAT

V(RS,VBAT)

Thermal protection

Not tested in production

135

145

155

C

Switching frequency

MHz

UVLO input voltage

Threshold

VIN increasing

VIN

2.65

UVLO Hysteresis

VIN decaying

VIN

150

STAT low level

Open drain pulled up with

5mA

STAT

0.2

Low side Rdson

From LX to GND

R(LX,GND)

mΩ

THM threshold, Hot

VTHM-L

0.28*V(VL)

THM threshold, Cold

VTHM-H

0.74*V(VL)

Note: Charge current set by:

SENSE

RSENSE



BAT

LP28400ACQVF 数据表(PDF) 5 Page - Lowpower Semiconductor inc

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