BD78310EFJ-ME2

Overview

The BD78310EFJ-ME2 is a Class AB monaural speaker amplifier designed for automotive applications. It delivers a maximum output power of 1.6 W into an 8 Ω load with a voltage gain of 10 dB. The device operates within a supply voltage range of 4 V to 5.5 V and supports differential input signals. Key electrical specifications include a standby current of 0.1 µA, operation from -40 °C to +105 °C, and a minimum load impedance of 4 Ω.

Feature Summary

• AEC-Q100 Grade 2 qualified for automotive functional safety support
• Integrated pop noise reduction function for quiet startup and shutdown
• Comprehensive protection mechanisms including over-current, thermal shutdown, and under-voltage lockout

Applications

• Automotive audio systems requiring AEC-Q100 compliance
• Monaural speaker amplification in vehicle infotainment units
• Applications necessitating low standby current and minimal pop noise during power cycling

Procurement Notes

Verify the specific suffix ME2 against the official ROHM datasheet to confirm package type and tape/reel specifications. Ensure the design accounts for the HTSOP-J8 package thermal characteristics given the 1.6 W output capability. Confirm that the application environment stays within the specified -40 °C to +105 °C operating temperature range for reliable automotive-grade performance.

Selection Notes

Select this component when a single-channel amplifier with 1.6 W output is required for automotive environments. It is suitable for designs needing AEC-Q100 Grade 2 qualification and low quiescent current. Choose this part over higher-gain variants if a fixed 10 dB gain meets the system signal chain requirements without additional external amplification stages.

Part Context

This model belongs to the BD783xx series of automotive speaker amplifiers from ROHM Semiconductor. It shares the HTSOP-J8 package form factor with other members like the BD78306EFJ-ME2 but offers distinct electrical characteristics, specifically a higher voltage gain of 10 dB compared to the 6 dB variant. The series is engineered to reduce battery burden through low standby currents and minimize acoustic disturbances via pop noise reduction.

Replacement Considerations

The BD78310UEFJ-ME2 is documented as a production line alternative for the BD78310EFJ-M series with identical electric characteristics. Verify package compatibility before substitution.