Copyright

© ANPEC Electronics Corp.

Rev. A.1 - Mar., 2017

APL3227E

www.anpec.com.tw

1

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and

advise customers to obtain the latest version of relevant information to verify before placing orders.

High-Current Overvoltage Protectors with Adjustable OVLO

•

Wide supply voltage range from 3.8V to 28V

•

Low ON resistance: 50m

Ω(Max) at a supplyvoltage

of 5V

•

Flexible overvoltage-protection trip level

-Wide adjustable OVLO threshold range from 4V

to 20V

-Preset internal accurate OVLO threshold

•

Low quiescent current 70

µA

•

Internal 8ms startup debounce

•

Protection circuitry:

-Surge Immunity to 100V

-Overvoltage lockout

•

Low Capacitance ESD Protection

•

Available in WLCSP1.82x1.22-12 Packages

•

Lead Free Green Devices Available (RoHS

Compliant)

The APL3227E overvoltage protection devices feature a

low 50m

Ω (max) RON internal FET and protect low-volt-

age systems against voltage faults up to +28VDC. An

internal clamp also protects the devices from surge up to

+120V. When the input voltage exceeds the overvoltage

threshold, the internal FET is turned off to prevent dam-

age to the protected downstream components.

The overvoltage protection threshold can be adjusted with

optional external resistors to any voltage between 4V and

20V. With the OVLO input set below the external OVLO

select voltage, the APL3227E automatically choose the

accurate internal trip thresholds. The internal overvoltage

thresholds (OVLO) are preset to 13.32V typical. The de-

vices feature an open-drain ACOK output indicating a

stable supply between minimum supply voltage and

VOVLO. The APL3227E are also protected against over

current events by an internal thermal shutdown.

Features

General Description

Applications

•

Smart Phones and PDAs

•

Digital Still Cameras

•

Portable Devices

Pin Configuration

WLCSP1.82x1.22-12

EN

(A1)

OVLO

(C1)

IN

(C2)

ACOK

(B1)

OUT

(B2)

OUT

(A2)

Top View

IN

(C3)

IN

(B3)

OUT

(A3)

GND

(C4)

GND

(B4)

GND

(A4)

Simplified Application Circuit

EN

OVLO

OUT

IN

OUT

IN

OUT

IN

ACOK

APL3227E

1

µF

GND

POWER

ADAPTER

1

µF