BM1P061FJ-E2

Overview

The BM1P061FJ-E2 is a PWM control type DC/DC converter IC designed for AC/DC conversion. It features an external FET controller architecture with a fixed switching frequency of 65 kHz and supports current mode regulation. The device includes a built-in 650V high-voltage start circuit to facilitate low-power standby operation. Key electrical parameters include a minimum input voltage (Vin1) of 8.9 V, a maximum input voltage of 26 V, and a maximum switching frequency of 65 kHz. It operates within a temperature range of -40°C to 105°C and is housed in an SOP-J8 package measuring 4.9x6.0 mm.

Feature Summary

• Integrates a 650V high-voltage start circuit to enable low-power consumption designs.
• Utilizes PWM current mode method with frequency hopping functionality to reduce electromagnetic interference.
• Supports both isolated and non-isolated power supply architectures for versatile system design.

Applications

• AC/DC converters for products incorporating electrical outlets
• Low-power electrical converters requiring isolation
• Non-isolated low-power converter systems

Procurement Notes

Verify the specific suffix E2 against the manufacturer's latest documentation to confirm pinout compatibility and electrical specifications. Confirm that the SOP-J8 package dimensions align with your PCB footprint requirements. Ensure that the external MOSFET selection matches the controller's drive capabilities and voltage ratings. Check for any recent Product Change Notices (PCNs) that may update mechanical or environmental specifications without altering electrical performance.

Selection Notes

Select this component when designing AC/DC converters that require an external switch MOSFET rather than an integrated one. The fixed 65 kHz switching frequency simplifies magnetic component design compared to variable frequency alternatives. The current mode control provides excellent transient response and cycle-by-cycle current limiting. Consider the 650V start circuit tolerance when selecting input filtering components for high-voltage AC lines.

Part Context

The BM1P061FJ-E2 belongs to the BM1Pxxx series of PWM control type DC/DC converter ICs from ROHM Semiconductor. This series is engineered to provide optimal systems for devices with power sockets, supporting both isolated and non-isolated topologies. The family emphasizes low standby power through integrated high-voltage startup circuits and efficiency improvements via light-load frequency reduction.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's datasheet for recommended similar products or direct replacements based on updated design guidelines.