EV4008-S-00A

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High Brightness High-Current Accuracy WLED Controller
  • 数量 价格
  • 1
    US$ 100.00 /unit

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Product Description

The EV4008-S-00A is designed to demonstrate the capabilities of MP4008. The MP4008 is a current mode controller designed for driving the high brightness Light Emitting Diodes (LEDs) with wide input voltage 9V-28V. It can be used both in Boost and SEPIC topologies.

With a 20-48V power supply PVIN and a 9-28V IC supply for MP4008, The evaluation board can drive a single LED string with the LED current regulated to 350mA and VLED voltage up to 70V. Apply a PWM dimming signal to do PWM dimming. The Over-Voltage protection, short LED protection, short inductor/diode protection and over current protection are integrated.

Product Features

  • Constant-current WLED Driver Controller
  • 280mV Feedback Voltage with ±1.8% Accuracy
  • 9V-28V Input Voltage
  • Leading Edge Blanking for Current Sense
  • Frequency Fixed 180kHz
  • Fast PWM Dimming
  • Soft Start
  • Over Voltage Protection
  • Short LED Protection
  • Short Output Protection
  • Over Current Protection
  • Short Inductor/Diode Protection
  • VIN UVLO
  • Thermal Shutdown
  • Available in SOIC-8 package

Parametrics

  • IC Supported 1MP4008

Monolithic IC

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IC Details

The MP4008 is a current-mode controller designed for driving high brightness light emitting diodes (LEDs) with a wide input voltage from 9V to 28V. It can be used in boost and SEPIC topologies.
The MP4008 drives an external MOSFET with a fixed frequency architecture to regulate the LED current, which is measured through an external current-sense resistor. The LED current feedback voltage is 280mV. The switching frequency is fixed to 180kHz. The cycle-by-cycle current limit can be programmed by the sense resistor on CS. 
The MP4008 employs fast PWM dimming to the LED current with a high dimming ratio. 
Integrated protection features include under-voltage lockout, over-voltage protection, over-current protection, short LED protection, short output protection, short inductor/diode protection, and OTP.
The MP4008 is available in a SOIC-8 package.