Automotive-Qualified LED Driver Integrates Temperature Compensation

The MLX10803 power-LED drivers integrate high-temperature compensation performance with intelligent features, such as dimming and soft light-level increase.

Melexis’ drivers deliver efficiencies of 70% for single-LED applications and 95% for LED arrays.

Including several reference inputs, the MLX10803 is designed to allow temperature compensation from external sensors in order to guarantee a constant light level and to protect the LED system against overheating. These LED driver ICs are qualified according to the automotive ISO/TS16949 standard, ensuring robust reliability. The EMI behaviour of the entire module is optimised by randomising the switching frequency. Other features include intrinsic load-dump protection up to 80V and an operating temperature range from -40°C to 125°C.

The MLX10803 operates normally from a DC supply between 6V and 32V. A minimum of external components can be added to allow the IC to operate from 50Hz or 60Hz AC supplies at voltages of 115V or 220V. With appropriate external components, the MLX10803 can efficiently drive numerous high-intensity LEDs, ranging from 1W to 1kW.

 

FEATURES Input range: 6V DC to 32V DC Small package allows compact design Built-in randomiser High-temperature operation PWM dimming LED regulation parameters set with external resistors

APPLICATIONS LED driver for external N-channel MOSFET switching transistors Automotive interior and exterior applications Single power-LED systems Power-LED arrays

 

 

Melexis / MLX10803