BM2P137TKF-E2

AC DC Converters, Offline Switchers Overview

The BM2P137TKF-E2 is a non-insulated PWM DC/DC converter IC with an integrated switch MOSFET, designed for high-efficiency power supplies. It features an 800V breakdown voltage super junction MOSFET and an integrated start circuit rated for 800V. The device utilizes current mode control with per-cycle current limiting and operates at a fixed switching frequency of 100kHz. It includes a frequency hopping function to reduce EMI noise. Key electrical parameters include a VCC OVP with auto restart, soft start capability, thermal shutdown protection, and under-voltage lockout. The internal current detection resistor facilitates compact designs.

AC DC Converters, Offline Switchers Feature Summary

• Integrated 800V super junction MOSFET and start circuit for simplified design
• Current mode control with per-cycle current limiting for excellent transient response
• Built-in frequency hopping function to achieve low EMI emissions
• Comprehensive protection features including thermal shutdown and UVLO

AC DC Converters, Offline Switchers Applications

• Non-insulated high-efficiency converters for products with AC plugs
• General purpose power supply designs requiring compact form factors
• Consumer electronics power adapters

AC DC Converters, Offline Switchers Procurement Notes

Verify the exact suffix against official ROHM documentation, as 'TKF' may denote specific tape and reel or packaging variations compared to standard 'QKF'. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the component meets the required operating temperature range of -40°C to 105°C for your specific application environment. Cross-reference the datasheet revision date to ensure all latest safety and performance specifications are accounted for before finalizing procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this IC when designing non-insulated flyback converters requiring high voltage isolation on the primary side without external optocouplers. The 800V rating suits applications with higher input voltage stresses. Consider the fixed 100kHz frequency for EMI filter design. The integrated current sense resistor reduces external component count. Evaluate the thermal performance within the SOP-8 package for your expected load conditions. This part is not recommended for automotive use according to manufacturer guidelines.

AC DC Converters, Offline Switchers Part Context

The BM2P137 series represents ROHM's line of integrated PWM controllers for offline AC/DC conversion. The BM2P137TKF-E2 variant specifically incorporates an 800V耐压 MOSFET, distinguishing it from lower voltage variants like the 650V BM2P137QF. It belongs to the family of highly integrated power management solutions aimed at reducing bill-of-materials costs and board space in consumer electronic power supplies.

AC DC Converters, Offline Switchers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Users should consult official ROHM documentation for direct replacements or pin-compatible alternatives.