APL3200 View Datasheet(PDF) - Anpec Electronics

Part Name

Description

Manufacturer

APL3200

Dual-Input, USB/AC Adapter, 1-Cell Li+ Charger with OVP and Thermal Regulation

Anpec Electronics

APL3200 Datasheet PDF : 24 Pages

1 2 3 4 5 6 7 8 9 10 Next Last

APL3200

Pin Description

NO.

NAME

DCLV

STAT1

USEL

GND

DCI

THRM

REF

STAT2

BYP

USB

UOK

PON

BATT

DCOK

Pad

Enable in Charge Done

FUNCTION

DC charger power input from an AC adapter. DCLV charges BATT through an internal MOSFET.

Maximum operating voltage at this pin is 6.0V. When an over-voltage protection MOSFET is

cEonnnaecbteled,iDnCCLVhaisrcgoennDecotendeto DC when the input voltage is suitable for charging.

Voltage-Sense Pin for DC Input from AC Adapter. Maximum

This voltage-sense function provides status of DC voltage

ofproemraEtinAngCabvaoledltaaipgnteerCatfhothar irsogvpeeinr-Dvisool1tna8geVe.

protection.

Charge status output pin 1. This pin is an active-high, open-drain output pin.

USB charging current selection input. USEL is a logic input that sets USB source charging current to

500mA when USEL is logic high and to 100mA when USEL is logic low.

Charging enable/disable control pin. Drive EN high to enable the device. When EN is low, the

charger stops charging and DCOK, UOK, and PON remain active.

Signal and power ground.

DC charging current setting pin. Connecting a resistor to the GND sets the fast-charge current when

the DCLV input is powering the charger.

External thermistor connection pin. THRM pauses charging when an externally connected the

thermistor (10kΩ at +25oC) is at less than 0 oC or greater than +50 oC. Connecting this pin to the

GND disables this function.

3V Reference voltage output pin. Sources up to 1.5mA to bias the external thermistor. Bypass with

0.1µF to the GND. REF loading does not affect BATT regulation accuracy.

Charge status output pin 2. This pin is an active-high, open-drain output pin.

Bias supply pin for internal circuitry. This pin switches to the pin (either DCLV or USB) with higher

supply than the other. Bypass with a 2.2µF capacitor to the GND.

USB charger power input. Charge BATT through an internal MOSFET.

USB power-ok output pin. UOK is an active-low, open-drain output that goes low when USB is the

valid charging source (VUSB >3.65V and VDC<3.65V).

Gate driver output pin for the P-channel MOSFET disconnecting battery from system load when

power is applied. PON is an active-high, open-drain output with an internal 140kΩ resistor to the

ground that goes high when VDC or VUSB is ready.

Charger output pin. Connect this pin to the positive terminal of a Li+ battery.

DC power-ok output pin. DCOK is an active-low, open-drain output that goes low when 3.65V < VDC

< 6.4V.

Exposed metal pad. This pad is connected to the ground. Note this internal connection is a

soft-connect, meaning there is no internal metal or bond wire physically connecting the exposed pad

to the GND pin. The connection is through the silicon substrate of the die and then through a

conductive epoxy. Connecting the exposed pad to the ground does not remove the requirement for

a good ground connection to the GND.

Rev. A.5 - Apr., 2009

www.anpec.com.tw

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