Holtek announced the release of its new proximity sensing Flash MCU, the BS45F3235. As the device includes an integrated active IR proximity sensing circuit and a low voltage motor driver, it is extremely suitable for use in driving DC motors or electromagnetism valve control related products such as sanitary appliances, home appliances, security products to name but a few.
The device includes an integrated active IR proximity sensing circuit which greatly reduces the required number of external components, such as operational amplifier, D/A converter, transistors, resistors and capacitors, thus reducing the product area size and BOM costs.
Another feature is that the device transmitting power and receiving sensitivity can be controlled using the application program. With its integrated True EEPROM, which can store application parameters, auto adjustment and calibration functions can be easily implemented. The sensing distance can be also adjusted by the application program thus providing simpler development and production features.
The device includes a full range of communication interfaces, including UART, I2C and SPI, which offer a high level of flexibility for communication with external devices, such as MCUs, wireless transmission modules, etc. The device includes an integrated low voltage motor driver which provides a driving capacity of up to 7.5V/2.1A, and has a full range of OCP, OSP and OTP protection functions. In addition, the device has an ultra-low power consumption sleep mode which can extend battery life.
