BM2P053

Overview

The BM2P053 is a PWM type AC/DC converter IC from ROHM Semiconductor, designed for low-power electrical converters. It integrates a 650V MOSFET and a high-voltage start circuit to simplify design for both isolated and non-isolated applications. The device operates with an input voltage range of 8.9V to 26V and features a fixed switching frequency of 65kHz. It utilizes current mode control for cycle-by-cycle current limiting, ensuring excellent bandwidth and transient response. The component supports light load frequency reduction and burst operation to maintain high efficiency at low loads.

Feature Summary

• Integrates a 650V耐压 MOSFET and high-voltage start circuit for simplified design
• Supports both isolated and non-isolated power supply architectures
• Employs current mode control with cycle-by-cycle current limiting
• Features frequency reduction and burst operation modes for enhanced light-load efficiency

Applications

• Low-power AC/DC converters for products with electrical outlets
• Isolated power supply designs
• Non-isolated power supply designs

Procurement Notes

Verify the specific package variant, as the BM2P053 is available in DIP7 packaging. Confirm RoHS compliance status and ensure the ordering suffix matches the required tape-and-reel or tube configuration if applicable. Cross-reference the manufacturer's latest datasheet to confirm pinout compatibility and thermal characteristics before finalizing procurement specifications.

Selection Notes

Select the BM2P053 for applications requiring integrated high-voltage switching capabilities without external discrete MOSFETs. Its fixed 65kHz frequency and current mode control make it suitable for designs prioritizing transient response and EMI management through built-in frequency modulation. Ensure the external current detection resistor values align with the controller's sensing thresholds for optimal performance.

Part Context

The BM2P053 belongs to the BM2PXX3 series of AC/DC PWM converters from ROHM Semiconductor. This series is engineered to provide optimized systems for devices incorporating power sockets, emphasizing low standby power consumption and design flexibility. The integration of the 650V MOSFET reduces component count and board space compared to solutions using external switches.

FAQ

Does the BM2P053 support both isolated and non-isolated topologies?

Yes, the BM2P053 supports both isolated and non-isolated device configurations, allowing for flexible power supply design.

What control method does the BM2P053 use?

The BM2P053 uses current mode control, which provides cycle-by-cycle current limiting and contributes to excellent bandwidth and transient response.