AS3696-ZQFM datasheet, PDF - EEWORLD Datasheet

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AS3696-ZQFM: DescriptionLED Lighting Drivers 4-Ch White LED Ctrl 3D-LCD Backlight; Categorysemiconductor Other integrated circuit (IC); File Size987KB，14 Pages; ManufacturerAMS; Websitehttps://ams.com/zh; Environmental Compliance

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AS3696-ZQFM Overview

LED Lighting Drivers 4-Ch White LED Ctrl 3D-LCD Backlight

AS3696-ZQFM Parametric

Parameter Name	Attribute value
Product Attribute	Attribute Value
Manufacturer	AMS
Product Category	LED Lighting Drivers
RoHS	Details
Number of Channels	4 Channel
Output Current	1 mA
Input Voltage	5.2 V
Operating Frequency	1 kHz
Supply Current - Max	2.5 mA
Minimum Operating Temperature	- 30 C
Maximum Operating Temperature	+ 85 C
Mounting Style	SMD/SMT
Package / Case	QFN-32
Packaging	Cut Tape
Packaging	MouseReel
Packaging	Reel
Moisture Sensitive	Yes
Factory Pack Quantity	500
Unit Weight	0.006653 oz

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AS3693B

austriamicrosystems

AS3696

4 channel white LED controller for general lighting

applications

Product specification

General Description

The AS3696 is a 4 channels precision LED controller

with PWM inputs or internal PWM generator for driving

external FETs in precise lighting applications. Build in

safety features include thermal shutdown as well as

open and short LED detection.



2x2 Channel LED driver

Output current only limited by external FET

Build in shunt regulator

Absolute current accuracy +/- 1%

Channel to channel accuracy +/- 1%

Normal Mode



Linear current control with external voltage



Digital PWM control with PWM input



Build in PWM-generator with analog duty cycle

control

Current Boost Mode



Linear current control with external voltage



Digital PWM control with 2 PWM inputs



Open LED detection and auto-turnoff

Short LED detection and auto-turnoff

Temperature shutdown

2x automatic supply regulation feedback

Package QFN 32pin 5x5mm, 0.5mm pitch

Package TQFP 32pin 7x7mm, 0.8mm pitch

Applications



Commercial, industrial and retail lighting



Streetlights



Large panel LED backlighting

1 Block Diagram

Vsupply

VDD

xFAULT

FB12

FB34

V2_5

S1 G1

S2 G2

S3 G3

S4 G4

SMPS

feedback

Rosc

Cosc

Fault detectors

Oscillator

AS3696

Reference

Vshort

Vfb

Vref

Vset2

Vset1

Vduty

CB_PWM12

CB_PWM34

CB_MODE

xPD

PWM

SEL

PWM control

EPAD

VSS

Sel_PPTrim

www.austriamicrosystems.com

Rev 2.1 / 2012-11-29

1 - 14

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