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

$1.10

SKU: IDD1002 Category: Tag:

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

Weight 0.01 kg

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