BM2P249TF Datasheet | ROHM

AC/DC Convertor IC PWM type DC/DC converter IC Integrated Switching MOSFET for non-Isolated type BM2P109TF/BM2P159T1F/BM2P249TF General The PWM type DC/DC converter for AC/DC provides an optimum system for all products that include an electrical outlet. It enables simpler design of a high effective converter specializing in non-isolated devices. This series has a built-in HV starter circuit that tolerates 650V, and it contributes to low power consumption. With a current detection resistor for switching as internal device, it can be designed as small power supply. Since current mode control is utilized, current is restricted in each cycle and excellent performance is demonstrated in bandwidth and transient response. The switching frequency is fixed to 100 k Hz. A frequency hopping function is also on chip, and it contributes to low EMI. In addition, a built-in super junction MOSFET which tolerates 650V makes the design easy. Features - PWM frequency: 100k Hz - PWM current mode method - Frequency hopping function - Burst operation at light load - Built-in 650V start circuit - Built-in 650V switching MOSFET - VCC pin under voltage protection - VCC pin over voltage protection - Over current limiter function per cycle - Soft start function Basic Specification - Power Supply Voltage Operation Range: VCC(BM2P109TF) : 8.00V to 10.81V VCC(BM2P159T1F) : 10.60V to 16.21V VCC(BM2P249TF) : 10.60V to 26.80V DRAIN : to 650V - Normal Operation Current - Burst Operation Current - Oscillation Frequency - Operation Temperature Range - MOSFET ON...