A8437 View Datasheet(PDF) - Allegro MicroSystems

Part Name

Description

View to exact match

A8437

Mobile Phone Xenon Photoflash Capacitor Charger with IGBT Driver

Allegro MicroSystems 

A8437

Mobile Phone Xenon Photoflash Capacitor Charger

with IGBT Driver

Selection Guide

Part Number

Package

A8437ECGLT*

12-ball WLCSP

A8437EEJTR-T

10-contact DFN/MLP

*Contact Allegro for additional ordering information.

Packing

Tape and reel, 4000 pieces per reel

Tape and reel, 1500 pieces per reel

Absolute Maximum Ratings

Characteristic

SW Pin

VIN Pin

CHARGE, TRIGGERx, ¯D¯¯O¯¯N¯¯E¯ Pins

Remaining Pins

Operating Ambient Temperature

Maximum Junction

Storage Temperature

Symbol

VSW

VIN

TA

TJ(max)

Tstg

Notes

DC voltage.

(VSW is self-clamped by internal active clamp

and is allowed to exceed 40 V during flyback

spike durations. Maximum repetitive energy

during flyback spike: 0.5 μJ at frequency

≤ 400 kHz.)

Care should be taken to limit the current when

–0.6 V is applied to these pins.

Range E

Rating

–0.3 to 40

–0.3 to 6.0

–0.6 to VIN + 0.3 V

–0.3 to VIN + 0.3 V

–40 to 85

150

–55 to 150

Units

V

V

V

V

ºC

ºC

ºC

Thermal Characteristics

Characteristic

Symbol

Test Conditions1

CG package, on 4-layer PCB based on JEDEC standard

Package Thermal Resistance2

RθJA

EJ package, on 2-layer PCB with 0.88 in.2 area of 2 oz. copper

each side, based on JEDEC standard

EJ package, on 4-layer PCB based on JEDEC standard

1Additional thermal information available on Allegro website.

2CG results preliminary.

Value Units

100 ºC/W

65 ºC/W

45 ºC/W

Allegro MicroSystems, Inc.

2

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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