Diodes Incorporated ZXLD1320 | Demoboard ZXLD1320EV3

Description

The ZXLD1320EV3, is a PCB constructed using an FR4 base forevaluating the ZXLD1320 LED driver, which is connected to an external switch for high current LED applications. The evaluation board can be used to drive an external choice of LEDs with up to 2.8A LED current; the total forward voltage across the LEDs depending upon the number and type connected.The suggested operating voltage for the evaluation board ranges from 5V to amaximum of 18V. Since the LED is working in step-down mode, a higher inputvoltage implies that the driver can be connected to a greater number of LEDs inseries.The nominal current for the evaluation board is set at 2.8A with a sense resistor of 35mR consisting of R3,R3A and R3B in parallel.Test point ADJ provides a connection point for DC or PWM dimming and shutdown. Test Point TADJ provides a connection point for thermal compensation.

Features

• Step Down LED Driver
• 4V to 18V Input Voltage Range
• Up to 1.5A output current
• Typical efficiency *> 85%
• User-defined thermal control of LED output current using external thermistor
• 12μA typical standby current
• Adjustable Soft-Start
• Power ‘OK’ flag output
• Capable of driving 4 LEDs in series

Typical applications

• High Power LED flashlights
• LED projector
• Low voltage halogen lamp replacement with LEDs
• LED back-up lighting
• General LED lighting

More information

• Datasheet
• IC product information