General Description

MAP3524 is a 2 channel quasi-resonant mode buck

controller for LED backlight application. It operates at

boundary conduction mode which provides better

efficiency and lower EMI.

MAP3524 features ±2% current sensing(CS) voltage

accuracy and has dedicated Independent analog

dimming input up to 3.3V. It can be powered from 8.5V

~ 18V supply.

MAP3524 provides MOSFET drain-source short

detection for fault output, VCC over voltage protection

(OVP) detection for fault output, current sense resistor

short protection, short circuit protection (SCP) and

VCC under voltage lockout (UVLO).

MAP3524 is available 20 leads SOIC with Halogenfree (fully RoHS compliant)

Features

 8.5V to 18V Input Voltage Range

 Quasi-Resonant Mode

 LED Current Compensation Function

 Independent Direct PWM Dimming Input

 2% Current Sensing Voltage Accuracy

 Fault Output (FLT pin)

 ▪ MOSFET Drain-Source Short Detection

 ▪ VCC Over Voltage Protection Detection

 Short Circuit Protection

 Current Sense Resistor Short Protection

 VCC Under Voltage Lock Out

 20 Leads SOIC Package with Halogen-free

Applications

 High Brightness white LED backlighting for LCD TVs

 General LED lighting applications