LED Driver IC from Melexis’ Actuator Division Drives Up To 1kW
Melexis Microelectronic Integrated Systems N.V. has extended its LED driver family with a new high brightness LED driver optimized for performance, flexibility, robustness and cost. MLX10803 is designed for automotive interior and exterior applications but can generically be used in all high volume single or high brightness LED array applications that require temperature compensation, low noise and high efficiency at the lowest possible system cost.
The MLX10803 is a highly adaptable circuit and includes several reference inputs designed to allow external sensors temperature compensation in order to guarantee a constant light output or light level and to protect both LEDs and surrounding circuitry against overheating. The MLX10803 operates normally from a supply of 6 to 32 Vdc. It can efficiently drive a virtually unlimited number of high intensity LEDs up to 1000W of total load with the appropriate external discrete power devices.
MLX10803 offers temperature compensation and intelligence such as dimming and soft increase of light level at start up. Typical efficiency rates vary between 70% for single LED applications and more than 95% for LED array applications. All Melexis LED driver ICs are qualified according to the automotive ISO/TS16949 standard.
Roger Alm, product marketing manager of Melexis LED driver products, claims: "any designer using MLX10803 to create a switching LED driver can be confident that there is no other competing circuit that is significantly cheaper, has less noise or is more efficient or robust.
MLX10803 and MLX10801 provide designers with a complementary selection of driver IC's. MLX10801 offers very wide programming options while the MLX10803 is cost optimized for high volume applications. Engineering samples of MLX10803 are available in SOIC8 package.