MP4012 Overview
The MP4012 is a current mode controller designed for driving the high brightness Light Emitting Diodes (LEDs) from extremely wide input voltage 8V~55V. It can be used in Boost, Buck, Buck-boost and SEPIC topologies. The MP4012 drives external MOSFET with fixed frequency/constant off-time architecture to regulate the LED current, which is measured through an external current sense resistor.
MP4012 Key Features
- Constant-current WLED Controller
- 8V~55V Input Voltage
- Constant Frequency Mode Or Constant Off
- Programmable Switching Frequency or Off
- Leading Edge Blanking for Current Sense
- High Frequency PWM Dimming and Analog
- Output-to-Input Disconnect in Shutdown
- Synchronization Function
- Programmable Over Voltage Protection
- Open Load Hiccup Mode Protection