DW8502 Led Driver IC 40V 1.5A TO-263

The DW8502 is an instant On/Off LED driver for high power LED applications. At DW8502 output stage, one regulated current port is designed to provide a uniform and constant current sink for driving LEDs within a large range of VF variations. DW8502 easily provides users a consistent current source. User may adjust the output current from up to 2.5A through an external resistor ,RS, which gives users flexibility in controlling the light intensity of LEDs. In addition, users can precisely adjust LED brightness from 0% to 100% via output enable (EN) with Pulse Width Modulation. DW8502 also guarantees that LEDs can be cascaded to maximum 40V at the output port.

• Constant output current invariant to supply and load voltage change 

• 5V to 40V supply voltage 

• Up to 2.5A adjustable regulated output current 

• Built-in thermal derating circuit 

• Available PWM dimming control 

• Output current adjusted through an external resistor 

• TO-263 Package

Setting Output Current 

Iout [mA] = (610[mV]/Rset[ohm])X 1000

Applications

• LED light bulbs 
• Signage and decorative LED lighting 
• General lighting of flat panel displays 
• RGB backlighting LED driver 
• Current stabilizer with DC/DC or AC/DC 
• Automotive lighting 
• General purpose constant current source

Datasheet