DSP, Micros & Memory


MCUs control LED lighting

20 July 2011 DSP, Micros & Memory

Renesas Electronics announced the availability of five 16-bit MCUs of the RL78/I1A family, which implement the LED control, power supply control and communication functions required in LED lighting fixtures. With 32 to 64 KB of Flash memory in 20 to 38-pin packages, the devices provide six high-resolution PWM outputs that are capable of supporting an average resolution of 0,97 ns, enabling precise dimming and colour temperature adjustments. A PFC control function supports interleaved operation for high-power equipment requiring improved power factors. Protection functions use comparators for over-voltage and over-current detection and stop PWM timer output automatically. In addition to CSI, the MCUs support the IĖC bus, UART and DALI standards.



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