Mbi6651 Driver Ic

The MBI6651 DRIVER IC is a high efficiency, constant current and step-down DC/DC converter. It is designed to deliver constant current to light up high power LED with only 4 external components. With hysteretic PFM control scheme, MBI6651 improves the efficiency of light loading. The output current of MBI6651 can be programmed by an external resistor and LED dimming can be controlled via pulse width modulation (PWM) through DIM pin. In addition, the start-up function limits the inrush current while the power is switch on. The MBI6651 also features under voltage lock out (UVLO), over temperature protection, LED open-circuit protection and LED short-circuit protection to protect IC from being damaged.

Additionally, to ensure the system reliability, the MBI6651 builds thermal protection (TP) function inside. This function protects IC from overheating (165A C) in various application conditions. MBI6651 provides thermal- enhanced packages as well to handle power dissipation more efficiently.

MBI6651 is available in TO-252, SOT-23 and MSOP-8 packages.

Applications :
- High Power LED Lighting
- Street/Tunnel Lighting
- Flat Panel Lighting
- Wall Washer/Spot Light
- Projection Lamp
- Light Bar