BM1Z012FJ-E2

Overview

The BM1Z012FJ-E2 is an AC voltage zero cross detection IC from ROHM Semiconductor, designed for professional power management applications. It operates within a supply voltage range of 10 V to 28 V and draws a typical operating current of 160 uA. The device supports a maximum power dissipation of 830 mW and functions reliably across a temperature range of -40°C to +105°C. Packaged in a SOP-J7S format, it facilitates surface mount installation.

Feature Summary

• Detects AC voltage zero-crossing timing with high precision
• Eliminates the need for photocouplers and external components
• Includes DC voltage monitoring function for rectified output
• Features variable zero-cross delay time capability

Applications

• Household appliances
• AC/DC converter systems
• Power management circuits requiring zero-cross detection

Procurement Notes

Verify the specific suffix E2 against the manufacturer's latest datasheet to confirm package dimensions and pinout compatibility. Ensure the sourcing channel provides original ROHM Semiconductor documentation to validate RoHS compliance and manufacturing origin before integration into production designs.

Selection Notes

Select this component when designing isolated or non-isolated AC/DC converters that require precise zero-crossing synchronization without using optocouplers. It is suitable for applications demanding low standby power consumption and reduced component count in household appliance power supplies.

Part Context

This part belongs to the BM1Z series of AC voltage zero cross detection ICs. These devices are engineered to replace traditional photocoupler-based control methods, offering a more compact and reliable solution for detecting AC line phases in power supply architectures.

Replacement Considerations

BM1Z001FJ-E2 is listed as an alias for this part number.