ACE4054

Fully integrated constant current/constant voltage

Li-ion battery charger

VER 1.4

6

Constant Temperature

Mode

Power FET

“ON”

Resistance (Between VCC

and BAT)

0.25

Ω

Soft-Start Time

Tss

100

μs

Recharge Comparator

Filter Time

0.5

5

20

Ms

Termination Comparator

Filter Time

400

1000

2500

μs

PROG Pin Pull-Up Current

3

μA

Note :

1.

Supply current includes PROG pin current (approximately 100

μA) but does not include any current delivered to the battery

through the BAT pin (approximately 100mA)

2.

ITREM is expressed as a fraction of measured full charge current with indicated PROG resistor

Application Circuit

CHRG

Supply

BAT

Voltage

VCC

PROG

4.2V Li-Ion

ACE4054

Battery

GND

On/Off