High Efficiency and Low Standby Power, CCM corresponding Secondary Side Synchronous Rectification Controller IC - BM1R00149F

BM1R00149F is a synchronous rectification controller to be used in the secondary-side output. It has a built-in ultra-low consumption and high accuracy shunt regulator, which significantly reduces standby power. The shunt regulator is constructed in a completely independent chip that enables it to operate as a GND reference even when used in high side. At continuous mode operation, further space saving can be realized when operating without the input switching synchronizing signal of the primary side. BM1R00128F also features a wide operating power supply voltage range of 2.7V to 32V for various output applications. Finally, by adopting the high-voltage 120V process, it is possible to monitor the drain voltage directly."

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BM1R00149F-E2 Active SOP8 2500 2500 Taping Yes
Controller Type SR
Vin1(Min.)[V] 2.7
Vin1(Max.)[V] 32.0
Channel 1
Light Load mode No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 105
    • Built-in Ultra-Low Consumption Shunt Regulator Reducing Standby Power Consumption
    • Synchronous Rectification FET Supports High and Low Side
    • 120V High Voltage Process DRAIN terminal
    • Wide Input Operating Voltage Range of 2.7V to 32V
    • Supports LLC and PWM QR Controller
    • No Input Required on the Primary-Side at CCM
    • Built-in Overvoltage Protection for SH_IN and SH_OUT Terminal
    • Built-in Thermal Shutdown Function
    • Built-in Auto Shutdown Function
    • SOP8 package
Technical Data
Application Note

BM1R001xxF series Technical Design

Application Note

Thermal Resistance