BH3547F-E2

Overview

The BH3547F-E2 is a stereo audio amplifier IC manufactured by Rohm Semiconductor, designed for headphone applications. It operates within a supply voltage range of 4.5V to 6.5V and delivers a maximum output power of 77mW per channel into a 16-ohm load. The device utilizes Class AB topology and features an 8-SOP surface-mount package with dimensions of 4.40mm width. It functions reliably across a temperature range of -25°C to 75°C.

Feature Summary

• Integrated stereo (2-channel) audio amplification for headphone drivers
• Class AB operation for efficient signal reproduction
• Built-in thermal protection circuitry to prevent overheating damage
• Silent function to minimize switching noise during power transitions

Applications

• Portable electronic devices requiring stereo headphone outputs
• Mobile communication equipment with integrated audio playback
• Consumer electronics utilizing low-voltage battery power supplies

Procurement Notes

Verify the specific suffix E2 against the manufacturer's current datasheet to confirm compliance with RoHS3 standards and environmental regulations. Ensure the ordering quantity aligns with the standard manufacturing packaging configuration of 2,500 units per reel. Confirm that the 8-SOP package footprint matches the intended PCB layout requirements before finalizing procurement decisions.

Selection Notes

Select this component when a dual-channel audio solution is required for portable systems operating between 4.5V and 6.5V. The 77mW output capability is suitable for driving 16-ohm headphones in compact form factors. Consider the 8-SOP package size for space-constrained designs where surface-mount assembly is preferred over through-hole technology.

Part Context

This part belongs to the BH3547 series of audio amplifiers from Rohm Semiconductor. The series focuses on providing stereo audio performance in small packages for consumer electronics. The BH3547F-E2 variant specifically denotes the version with the E2 suffix, which typically indicates environmental compliance attributes such as lead-free composition and halogen-free materials according to manufacturer specifications.

Replacement Considerations

Consult official Rohm documentation for direct cross-reference part numbers. Verify pin compatibility and electrical parameters if substituting with other stereo headphone amplifiers from different manufacturers.