BD88215GUL-E2

Overview

The BD88215GUL-E2 is a stereo headphone amplifier featuring coupling capacitorless output architecture. It integrates a regulated charge pump to generate negative voltage from the positive supply, enabling ground-referenced output without large external capacitors. This design reduces component count and board area while preserving low-frequency response. The device operates on a single power supply ranging from 2.4V to 5.5V. Key electrical parameters include a maximum output of 80mW per channel into a 16Ω load, a signal-to-noise ratio of 101dB, and total harmonic distortion plus noise of 0.006%. Standby current is 0.1µA, with an 80µs startup time.

Feature Summary

• Integrates a regulated charge pump for negative voltage generation to enable direct speaker connection without output coupling capacitors.
• Provides high-fidelity audio performance with low distortion and high signal-to-noise ratio specifications.
• Features ultra-low standby current consumption to extend battery life in portable applications.

Applications

• Portable audio devices requiring compact form factors
• Smartphones and tablets with limited PCB space
• Battery-powered wearable electronics

Procurement Notes

Verify the complete part number including the -E2 suffix to ensure compliance with RoHS directives and specific packaging requirements. Confirm that the VCSP50L2 package dimensions align with your PCB footprint design. Ensure the operating voltage range matches your system's power supply rails before integration.

Selection Notes

Select this component when minimizing board space by eliminating large output capacitors is critical. It is suitable for systems requiring high audio quality with low power consumption. Consider the 2.4V minimum supply voltage constraint. Verify thermal performance under maximum load conditions given the small package size.

Part Context

This component belongs to ROHM's series of coupling capacitorless headphone amplifiers. These ICs are designed to replace traditional Class-AB amplifiers that require bulky output capacitors. The technology allows for significant reduction in both component height and circuit board area, making it ideal for modern slim electronic devices.

Replacement Considerations

Check for pin-compatible alternatives within the same product family if different gain settings or output power levels are required. Verify that any substitute maintains the coupling capacitorless architecture and similar electrical characteristics such as SNR and THD+N.