ACE4102E

2.5A, 3MHz Switching Charger with Dynamic Power Path Management

VER 1.1

2

Absolute Maximum Ratings

Parameter

Max

IN, BATT Voltage

-0.3V ~ 6V

All Other Pin Voltage

VIN-0.3V ~ VIN0.3V

SW,SYS,BATT to ground current

Internally limited

Operating Temperature Range

-40

Storage Temperature Range

-55

Thermal Resistance

θ

JA

50

(Note: Exceeding these limits may damage the device. Exposure to absolute maximum rating conditions for long periods may

affect device reliability.)

Packaging Type

QFN3x3-16

SYS

ISET2

IN

ISET1

SW

GND

SW

STAT

QFN3x3-16

Description

Function

1.15

SYS

System Voltage Pin. It is also the Switching regulator’s output pin. Connect and

inductor and capacitor to form the output filter

2

IN

Input pin. Can be connected to an AC adaptor or a USB charger output. Bypass with

a 10uF capacitor each to GND and PGND

3.4

SW

Switching node of the Switching Regulator. Connect a 1uH to 2.2uH inductor from

this pin to SYS

5

PGND

Power Ground. Bypass with a 10uF capacitor to IN with a shortest possible trace

6

ENB

Active Low Enable pin. Tie this pin low to enable the Charging, tie high to disable

Charging, while still keeping powerpath from BATT to SYS

7

NTC

Thermistor input

8.10

GND

Analog Ground Pin. Bypass with a 10uF capacitor to IN