Rohm Semiconductor

The compounded LSI of the Power Factor Correction (PFC) converter and Quasi-Resonant (QR) controller type DC/DC converter IC provides an optimum system for all products that include an electrical outlet. BM1C101F has a built-in HV starter circuit that tolerates 650V and X-Cap discharge function, and contributes to low power consumption and high speed start. The PFC part operates by Boundary Conduction Mode (BCM). It reduces the switching loss and the switching noise. Because of zero current detection (ZCD) by a resistance, this solution achieves no auxiliary winding and reduces external parts and the bias current. The DC/DC part operates by Quasi-Resonant Mode This method enables soft switching and helps to keep the EMI low. With MOSFET for switching and current detection resistors as external devices, a higher degree of design freedom is achieved. This IC has over voltage protection for the PFC output terminal, which protects electrolytic capacitor by stopping switching and makes the standby power consumption low by the PFC ON/OFF control function. The IC includes various protective functions such as VCC over voltage protection, external latch protection, brown out protection, soft start function, per-cycle current limiter and over load protection.You can choose from a variety of power and topologyevaluation boards.

The PWM type DC/DC converter (BM1Pxxx) for AC/DC provide an optimum system for all products that include an electrical outlet. BM1Pxxx supports both isolated and non-isolated devices, enabling simpler design of various types of low-power electrical converters. BM1Pxxx built in a HV starter circuit that tolerates 650V, it contributes to low-power consumption. With switching MOSFET and current detection resistors as external devices, a higher degree of design freedom is achieved. Since current mode control is utilized, current is restricted in each cycle and excellent performance is demonstrated in bandwidth and transient response. At light load, the switching frequency is reduced and high efficiency is achieved. A frequency hopping function is also on chip, which contributes to low EMI. BM1Pxxx has rich protection.Clickherefor the board designed to fully evaluate BM1P061FJ. In addition you can choose from a variety of power and topologyevaluation boards.

The PWM type DC/DC converter (BM1Pxxx) for AC/DC provide an optimum system for all products that include an electrical outlet. BM1Pxxx supports both isolated and non-isolated devices, enabling simpler design of various types of low-power electrical converters. BM1Pxxx built in a HV starter circuit that tolerates 650V, it contributes to low-power consumption. With switching MOSFET and current detection resistors as external devices, a higher degree of design freedom is achieved. Since current mode control is utilized, current is restricted in each cycle and excellent performance is demonstrated in bandwidth and transient response. At light load, the switching frequency is reduced and high efficiency is achieved. A frequency hopping function is also on chip, which contributes to low EMI. BM1Pxxx has rich protection.You can choose from a variety of power and topologyevaluation boards.

The PWM type DC/DC converter (BM1Pxxx) for AC/DC provide an optimum system for all products that include an electrical outlet. BM1Pxxx supports both isolated and non-isolated devices, enabling simpler design of various types of low-power electrical converters. BM1Pxxx built in a HV starter circuit that tolerates 650V, it contributes to low-power consumption. With switching MOSFET and current detection resistors as external devices, a higher degree of design freedom is achieved. Since current mode control is utilized, current is restricted in each cycle and excellent performance is demonstrated in bandwidth and transient response. At light load, the switching frequency is reduced and high efficiency is achieved. A frequency hopping function is also on chip, which contributes to low EMI. BM1Pxxx has rich protection.You can choose from a variety of power and topologyevaluation boards.

The PWM control IC for AC/DC "BM1P105FJ" provides an optimum system for all products that include an electrical outlet. A built-in start circuit that withstands 650 V helps to keep power consumption low. Both isolated and non-isolated versions are supported, making for simpler design of various types of low-power converters. Switching MOSFET and current detection resistors are external devices, thus achieving a higher degree of freedom in power supply design. The switching frequency is set as fixed. Since current mode control is used, a current limit is imposed in each cycle, and excellent performance is demonstrated in bandwidth and transient response. With a light load, frequency is reduced and higher efficiency is realized. A frequency hopping function is also built in, contributing to low EMI. Also on chip are soft start and burst functions, a per-cycle overcurrent limiter, VCC overvoltage protection, overload protection, and other protection functions.You can choose from a variety of power and topologyevaluation boards.

The PWM control IC for AC/DC "BM1P107FJ" provides an optimum system for all products that include an electrical outlet. A built-in start circuit that withstands 650 V helps to keep power consumption low. Both isolated and non-isolated versions are supported, making for simpler design of various types of low-power converters. Switching MOSFET and current detection resistors are external devices, thus achieving a higher degree of freedom in power supply design. The switching frequency is set as fixed. Since current mode control is used, a current limit is imposed in each cycle, and excellent performance is demonstrated in bandwidth and transient response. With a light load, frequency is reduced and higher efficiency is realized. A frequency hopping function is also built in, contributing to low EMI. Also on chip are soft start and burst functions, a per-cycle overcurrent limiter, VCC overvoltage protection, overload protection, and other protection functions.You can choose from a variety of power and topologyevaluation boards.

The PWM Controller for AC/DC power supplies provides an optimal system for all products that include an electrical outlet. It realizes the high flexibility in power supply design with external switching MOSFET and current detection resistor. This IC can make efficiency high because it has functions such as AC low voltage protection and X capacitor discharge and operates frequency reduction and burst operation at light load. In addition, this IC also has a built-in power save function and it reduces electric power at no load. This IC has following various protection functions.Clickherefor the board designed to fully evaluate BM1P10CFJ. In addition you can choose from a variety of power and topologyevaluation boards.