BD82042FVJ-GE2

Power Distribution Switches, Load Drivers Overview

The BD82042FVJ-GE2 is a high-side power switch IC from ROHM Semiconductor designed for power distribution applications. It features three independent output channels, each driven by an N-channel MOSFET with a maximum on-resistance of 98 mΩ. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports a current limit of 1.25 A per channel. Key electrical parameters include a maximum turn-on time of 20 ms and a maximum idle time of 20 µs. It functions reliably across an operating temperature range of -40°C to +85°C and is housed in an SMD/SMT TSSOP-8 package.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates three high-side switches with low on-resistance N-channel MOSFETs for efficient power distribution
• Includes built-in protection mechanisms such as over-current detection, thermal shutdown, and under-voltage lockout
• Features open-drain fault flag output and soft-start circuitry to manage inrush current and system stability

Power Distribution Switches, Load Drivers Applications

• Power distribution units in consumer electronics
• USB hub power management circuits
• Peripheral device power switching in industrial equipment

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix GE2 against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Ensure the ordering quantity aligns with the specified taping packaging requirements. Cross-reference the part number with authorized distributors to avoid counterfeit components. Confirm that the application environment stays within the specified -40°C to +85°C operating temperature range.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when a multi-channel high-side switch is required for low-voltage DC power distribution. The 3-channel configuration makes it suitable for managing multiple peripheral loads from a single control line. Consider the 98 mΩ on-resistance for efficiency calculations and ensure the load current does not exceed the 1.25 A limit per channel. The active-low control logic should be compatible with the host microcontroller's GPIO capabilities.

Power Distribution Switches, Load Drivers Part Context

This part belongs to the BD820xx series of high-side switches from ROHM, which are optimized for USB and general-purpose power switching. The BD82042 variant specifically provides three channels, distinguishing it from single or dual-channel counterparts like the BD82021 or BD82043. It is designed for standard-grade applications rather than automotive functional safety categories.

Power Distribution Switches, Load Drivers Replacement Considerations

The BD82043FVJ-GE2 is a related single-channel variant with different current limits. Direct replacement requires verifying channel count and current rating compatibility. No other direct substitutes are confirmed in the provided documentation.