MAP3204 查看數據表（PDF） - Unspecified

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MAP3204

4-channelLED Driverfor High Brightness LEDs

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Preliminary Datasheet Version 0.0

MAP3204

4-channel LED Driver for High Brightness LEDs

General Description

The MAP3204 is a 4-channel LED driver optimized

for LED backlight application targeting mid and large

size LCD module. It uses the boost MOSFET

externally and 4-channel current sources internally for

driving high brightness white LEDs

Input voltage of the MAP3204 is ranged from 7V ~

36V and max. LED current is 150mA per channel. It

can increase the output voltage depending on the

drain voltage rating of boost MOSFET.

It features PWM dimming control, internal soft-start

and 1.5% current matching between channels and

has protections like output over-voltage and LED

short/open and UVLO.

The MAP3204 is available in 16 leads E-TSSOP and

20 leads SOIC package with Halogen-free (fully RoHS

compliant).

Features

7V to 36V Input Voltage Range

Drive up to 4 Channels

150mA Output Current per Channel

1.5% Current Matching

Programmable Boost Switching Frequency :

100kHz to 500kHz

PWM Dimming : up to 22kHz

Current Mode Control

Boost Over Current Protection

Output Over Voltage Protection

LED Short/Open Protection

UVLO

16 leads E-TSSOP and 20 leads SOIC

Applications

High Brightness white LED backlighting for mid

and large size LCD module

General LED lighting applications

Ordering Information

Part Number

MAP3204SIRH

MAP3204TERH

Top

Marking

MAP3204

MAP3204

Ambient

Temperature Range

-40℃ to +85℃

-40℃ to +85℃

Typical Application

Package

20 leads SOIC

16 leads TSSOP with E-Pad

RoHS Status

Halogen Free

Halogen Free

Jan. 28th 2011

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