Renesas PH5551A2NA1 illuminance sensor

Renesas has released a digital ambient illuminance sensor, the PH5551A2NA1. The device is the company’s first entry into the market for these sensors and is designed to contribute to improved performance and reduced power consumption by automatically adjusting display brightness for the best viewing experience.

It detects the brightness of ambient light and sends a corresponding signal to a device such as a microcontroller. By using the sensor, system manufacturers can develop more compact and precise

automatic brightness adjustment or automatic on/off circuits for digital household appliances and electronics, mobile terminals and handsets, factory automation equipment and lighting fixtures for both indoor and outdoor use.

Key features include: clear mould SON package among the smallest and thinnest in the industry, reduction to ±20% of sensitivity variation due to different light sources; enhanced flexibility when used in combination with an MCU.