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Monolithic Power Systems MP4008 | Demoboard EV4008-S-00A
High-Brightness High-Current Accuracy WLED Controller
Overview
| Topology | Boost Converter |
| Input voltage | 20-48 V |
| Output 1 | 70 V / 0.35 A |
| IC revision | 1.0 |
Description
The EV4008-S-00A is designed to demonstratethe capabilities of MP4008. The MP4008 is acurrent mode controller designed for driving thehigh brightness Light Emitting Diodes (LEDs)with wide input voltage 9V-28V. It can be usedboth in Boost and SEPIC topologies.With a 20-48V power supply PVIN and a 9-28VIC supply for MP4008, The evaluation boardcan drive a single LED string with the LEDcurrent regulated to 350mA and VLED voltageup to 70V. Apply a PWM dimming signal to doPWM dimming. The Over-Voltage protection,short LED protection, short inductor/diodeprotection and over current protection areintegrated.
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
Typical applications
- DC/DC LED Driver
- General Illumination
- LCD Backlighting