BD78326EFJ-ME2

Overview

The BD78326EFJ-ME2 is a Class AB monaural speaker amplifier designed for automotive applications. It features a voltage gain of 26 dB and delivers a maximum output power of 1.6 W into an 8 Ω load. The device operates within a supply voltage range of 4 V to 5.5 V and supports minimum loads of 4 Ω. It includes protection functions such as over-current protection, thermal shutdown, and under-voltage lockout. The component is housed in an HTSOP-J8 package with a thermal pad and is qualified to AEC-Q100 Grade 2 standards.

Feature Summary

• Class AB topology provides high-fidelity audio amplification without excessive radiation noise.
• Integrated pop noise reduction function minimizes audible clicks during shutdown switching.
• Ultra-low standby current reduces battery drain when the system is inactive.
• Built-in protection mechanisms ensure reliability against over-current, thermal overload, and low voltage conditions.

Applications

• Automotive door speaker systems
• Center channel audio amplification
• Rear seat entertainment audio outputs

Procurement Notes

Verify the specific suffix ME2 corresponds to the required taping quantity and packaging format. Confirm that the HTSOP-J8 package dimensions align with the target PCB footprint. Ensure the design accounts for the thermal pad requirements to maintain junction temperature within specified limits under maximum load conditions.

Selection Notes

Select this component for single-channel automotive audio designs requiring moderate power output. The 26 dB fixed gain simplifies circuit design by eliminating external feedback resistors. Consider the thermal performance of the HTSOP-J8 package relative to the expected ambient temperatures and duty cycles in the vehicle environment.

Part Context

This part belongs to the BD783xxEFJ-M series of automotive speaker amplifiers. The series offers various gain options ranging from 6 dB to 26 dB to suit different system architectures. All members share the same HTSOP-J8 package and core protection features, ensuring consistent mechanical and safety characteristics across the product line.

Replacement Considerations

Check for other gain variants within the BD783xxEFJ-M series if different amplification levels are needed. Verify compatibility with existing PCB layouts due to the shared HTSOP-J8 package form factor among family members.