BM1P067FJ

The BM1P067FJ from ROHM Semiconductor is a silicon monolithic integrated circuit designed as a PWM control IC for AC/DC converters. It supports both isolated and non-isolated designs, simplifying the development of low-power converters. The IC features a built-in 650 V start circuit, contributing to low power consumption.

Key electrical specifications include an operating power supply voltage range of 8.9 V to 26.0 V and a typical operating current of 0.60 mA in normal mode and 0.35 mA in burst mode. The oscillation frequency is typically 65 kHz, with PWM frequencies available at 65 kHz and 100 kHz. It operates within a temperature range of -40 °C to +85 °C.

This PWM control IC utilizes a current mode control method with per-cycle overcurrent limiting and AC voltage compensation. It also incorporates features like frequency hopping for low EMI, burst operation during light load for higher efficiency, and soft start. Protection functions include VCC overvoltage protection and CS pin open protection.

The BM1P067FJ is housed in a SOP-J8 package with dimensions of 4.90 mm x 6.00 mm x 1.65 mm and a pitch of 1.27 mm. It is suitable for applications such as AC adapters, TVs, and various household appliances like vacuum cleaners, humidifiers, air cleaners, air conditioners, IH cooking heaters, and rice cookers.