Product Introduction

Product parameters

Funtion：High-Voltage, Linear High-Brightness LED Driver IC with Analog and PWM Dimming Control

Opration Mode：Linear

Vout Range：0V-28V

Vin Range：4V - 32V

Max Output Current：1A

Operating Current：455uA

Solar Panel charge：No

Chip Temperature Regulation：Yes

Package：eSOP8

Dimming：Yes

Chip Enable：Yes

On-chip Power MOSFET：Yes

General Description:

The CN5502 current regulator operates from a 4V to 32V input voltage range and delivers up to a total of 1A to one or more strings of high-brightness LEDs.

The output current of the CN5502 is adjusted by using an external current-sense resistor in series with the LEDs. A dual-mode DIM pin and on-chip 130Hz PWM generator allow PWM dimming with an analog or PWM input signal. The analog control signal at dimming input DIM allows for a theater-dimming effect to be implemented. The CN5502 is well suited for applications requiring high-voltage input and is able to withstand automotive load-dump events up to 32V. An on-chip power MOSFET minimizes external components while providing ±5% output current accuracy.

Also an EQ pin is adopted for equalizing LED current among multiple CN5502 used in parallel. Additional features include a 5V regulated output and thermal regulation, etc.

The CN5502 is available in a thermally enhanced 8-pin eSOP package.

Applications:

l Lighting Systems

l Automotive Interior and Exterior

l Navigation indicators

l Instrumentation illumination

l Signage and Beacons

Features:

l 4V to 32V Operating Voltage

l Adjustable LED Current up to 1A

l On-chip 130Hz PWM Generator

l Flexible Dimming Control, Analog or PWM Control Signal for PWM and Theater Dimming