2PCs 6-30V LED Driver, PT4115, PWM Tuning

Description

LEDs need constant current, for example normal LED has 350mA constant current, but 3.0-3.6V varying voltage, this board do this kind of work.

IC Features:

• Simple few peripheral parts
• Wide input voltage range: 6V to 30V
• Up to 1.2A output current,
• 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%)

Current setup: LED current is set through a sense resistor. The output current I is equal to 0.1/Rs. If want ~300mA, chose a 0.33 ohm resistor. If you want 350mA, choose a 0.27ohm resistor. (Check wiki page for further setup.)

Breakout board support up to

• 1W, 10W, 30W high power LEDs in our store
• also can shortly or not fully power 50W or 100W LEDs. 33V for 100W LEDs can work but not recommdedded for long term.
• Tested 5 Meters LED white strips.
• Pin Definition:
  • IN +: Positive power supply IN-: Power supply negative.
    LED +: Connect the LED’s anode LED-:  Connect the LED’s cathode
  • PWM: Light Strengh control: dimming control signal (2.8V-6V turn on)
  • PWM signal limit frequency: 20HZ-20KHZ, recommendations: 1KHZ or so
• Each purchase is for 2 pieces boards.

Documentation, schematic, datasheet please see on this page.

Additional information