LD24AJTA_MINI 22W LED Driver Module – 6-25V 910mA Adjustable Constant Current Step-Down Converter with 5000:1 PWM Dimming for Arduino

Description:

The LD24AJTA_MINI is a continuous conduction mode inductive step-down converter, designed for driving single or multiple series connected LED fficiently from a voltage source higher than the total LED chain voltage. The device operates from an input supply between 6V and 25V and provides an externally adjustable output current of up to 910mA. Depending upon the supply voltage and external components, the LD24AJTA_MINI can provide more than 22 watts of output power.

6-25V 910mA Step-down High Brightness LED Driver with 5000:1 Dimming
Working voltage : DC 6-25V(Perfect for 6V 9V 12V 18V 24V LED Driver)
Output Current: 30-910MA;By changing the RCS resistance, the maximum current can reach 1.2A
Maximum output power: 22W(24V)
Current regulation: 1 through adjustable resistance; 2 through PWM control
Single pin on/off and brightness control using DC voltage or PWM
Up to 1MHz switching frequency
Typical 5% output current accuracy
Inherent open-circuit LED protection
High efficiency (up to 97%)
High-Side Current Sense
Hysteretic Control: No Compensation
Adjustable Constant LED Current

Mini Size : 18mm x 15mm x 6.5mm
Weight : 2.1g

Typical application:
Low voltage halogen replacement LEDs
Automotive lighting
Low voltage industrial lighting
LED back-up lighting
Illuminated signs
SELV lighting
LCD TV backlighting

 

By modifying the RCS potentiometer, the maximum output current can be adjusted to 1.2A (pay attention to enhance heat dissipation)

 

 

 

Application 1: Wiring in accordance with the following figure, use a suitable screwdriver gently and slowly rotate the adjustable resistance.

 

Application 2: Ignore the adjustable resistance, control the output current through the PWM port, the current is 0-910MA adjustable

Application 3 : Add an enable control switch based on application 1.