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：4.5V - 32V

Max Output Current：1A

Operating Current：410uA

Solar Panel charge：No

Chip Temperature Regulation：No

Package：eSOP8

Dimming：Yes

Chip Enable：No

On-chip Power MOSFET：Yes

General Description:

The CN5503 is a linear high brightness LED driver IC whose operating voltage ranges from 4.5V to 32V, which delivers up to a total of 1A current to one or more strings of high-brightness LEDs.

The output current of the CN5503 is adjusted by using an external resistor. A dual-mode DIM pin and on-chip 350Hz PWM generator allows 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 CN5503 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% LED current accuracy. Additional features include a 5V regulated output, ISET pin short-circuit protection, automatic shutdown and thermal shutdown, etc.

The CN5503 is available in a thermally enhanced 8-pin SOP package (eSOP8).

Applications:

l Lighting Systems

l Automotive Interior and Exterior

l Navigation indicators

l Medical Equippments

l Washer, Dryer and Refrigerator, etc.

l Signage and Beacons

Features:

l Operating Voltage Range: 4.5V ~ 32V

l Adjustable LED Current up to 1A

l LED Current Accuracy: ±5%