BV1HJ045EFJ-CE2

Power Distribution Switches, Load Drivers Overview

The BV1HJ045EFJ-CE2 is a high-side power switch IC from ROHM Semiconductor, designed for automotive applications. It integrates a CMOS control unit and an N-channel power MOSFET in a single chip. The device supports a supply voltage range of 6 V to 28 V and provides four independent outputs. Key electrical parameters include a maximum on-resistance of 60 mΩ, a current limit of 5 A, and a maximum operating junction temperature of +150 °C. It features a rise time and fall time of up to 120 µs. The component is housed in an HTSOP-J8 surface-mount package.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates overcurrent protection with limitation functionality and thermal shutdown with self-restart capability.
• Includes diagnostic output functions for open load detection and error flag notification.
• Features low power consumption during output off state and reverse battery connection protection.

Power Distribution Switches, Load Drivers Applications

• Automotive power distribution systems
• Resistive load switching
• Inductive load switching
• Capacitive load switching

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix CE2 against official datasheets to confirm packaging details such as tape and reel specifications. Ensure compatibility with the target application's voltage and current requirements by cross-referencing the 6 V to 28 V operating range and 5 A current limit. Confirm that the HTSOP-J8 package dimensions meet the PCB layout constraints. Check for any functional safety (FS) supportive status if required by the system design.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when a multi-channel high-side switch with integrated diagnostics is required for automotive environments. The 60 mΩ on-resistance offers efficient power handling for loads up to 5 A per channel. Consider the 150 °C junction temperature rating for high-thermal-stress applications. The inclusion of open load detection simplifies system monitoring compared to basic switches without diagnostic features.

Power Distribution Switches, Load Drivers Part Context

This part belongs to the ROHM BV1Hx series of high-side switches, which are AEC-Q100 qualified PMICs. The series combines CMOS control logic with power MOSFETs to provide intelligent power management. The BV1HJ variant specifically targets applications requiring higher current capabilities and multiple channels within a compact footprint.

Power Distribution Switches, Load Drivers Replacement Considerations

The BV1HJ045EFJ-C is listed as an alias or predecessor part number. Verify if the CE2 suffix denotes a specific packaging change or environmental compliance update before substitution. Consult the manufacturer's obsolescence notices for the C suffix version.