AW32901/AW32902/AW32905/

AW32909/AW32910/AW32912

Apr. 2018 V1.0

www.awinic.com.cn

1

Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD

Over-Voltage Protection Load Switch with Surge Protection

FEATURES



Highly reliable 1.3mm × 1.8mm FCQFN-12

package



Surge protection



IEC 61000-4-5: > 120V



Integrated low Rdson nFET switch: typical 27m





5A continuous current capability



Default Over-Voltage Protection (OVP) threshold



AW32901: 5.95V



AW32902: 6.2V



AW32905: 6.8V



AW32909: 9.98V



AW32910: 10.5V



AW32912: 14V



OVP threshold adjustable range: 4V to 20V



Input system ESD protection



IEC 61000-4-2 Contact discharge: ±8kV



IEC 61000-4-2 Air gap discharge: ±15kV



Input maximum voltage rating: 29VDC



Fast turn-off response: typical 50ns



Over-Temperature Protection (OTP)



Under-Voltage Lockout (UVLO)

APPLICATIONS



Smartphones



Tablets



Charging Ports

GENERAL DESCRIPTION

The AW329xx family OVP load switch features

surge protection, an internal clamp circuit protects

the device from surge voltages up to 120V.

The AW329xx features an ultra-low 27m

 (typ.)

Rdson nFET load switch. When input voltage

exceeds the OVP threshold, the switch is turned off

very fast to prevent damage to the protected

downstream devices. The IN pin is capable of

withstanding fault voltages up to 29VDC.

The default OVP threshold is 5.95V (AW32901),

6.2V

(AW32902),

6.8V

(AW32905),

9.98V

(AW32909),

10.5V

(AW32910)

and

14V

(AW32912), the OVP threshold can be adjusted

from 4V to 20V through external OVLO pin.

The device features an open-drain output

ACOK,

when

VIN_UVLO < VIN < VIN_OVLO and the switch is

on,

ACOK will be driven low to indicate a good

power input, otherwise it is high impedance.

This device features over-temperature protection

that prevents itself from thermal damaging.

The AW329xx is available in a RoHS compliant

1.3mm × 1.8mm FCQFN-12 package.

TYPICAL APPLICATION CIRCUIT

OUT

OVLO

IN

GND

CIN

0.1µF

50V

R1

R2

COUT

1µF

Battery

USB

Port

AW32901

AW32902

AW32905

AW32909

AW32910

AW32912

Charger

ACOK

Controller

PMIC

Optional

EN

TVS

Optional

Figure 1 AW329XX typical application circuit

R1 and R2 are used for OVP threshold adjustment, to use default OVP threshold, connect OVLO to ground.

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