MP4008

MP4008

High-Brightness, High-Current Accuracy WLED Controller

Datasheet

Description

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.

Features & Benefits

Constant Current WLED Driver
280mV Feedback Voltage with ±1.8% Accuracy
9V to 28V Input Voltage
Leading Edge Blanking for Current Sense
Frequency Fixed to 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 a SOIC-8 Package

Active Part Numbers:

MP4008GS-P MP4008GS-Z

Meaning of P & Z

Related Products

EV4008-S-00A High Brightness High-Current Accuracy WLED Controller

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.

$100.00
+ tax