Designers of LED lighting are always looking for ways to reduce the cost and size of the power management solution in applications that use more than one LED.  NEC Electronics has recently developed a solution that reduces both.

NEC’s μPD78F8024/8025 high-current driving (HCD)/LED microcontroller is a 4-channel constant-current driver with embedded flash memory integrated into a single chip for maximum savings of cost and space. Each of the MCU’s constant-current driver channels implements an individual, hardware-based hysteretic regulator controller with a switching frequency up to 1MHz, which the MCU can control through pulse-width modulation (PWM) signals.