BD5460GUL-E2

Overview

The BD5460GUL-E2 is a monaural Class-D speaker amplifier manufactured by ROHM Semiconductor, designed for mobile audio applications. It operates on a single power supply ranging from 2.5 V to 5.5 V and delivers up to 850 mW of output power into an 8 Ω load at 10% THD+N. The device features a differential analog input and utilizes a PWM output topology without requiring external LC filters. Packaged in a compact 9-bump WLCSP (1.6x1.6 mm), it draws only 2 mA during operation with a shutdown current near zero. The unit supports a wide operating temperature range from -40°C to +85°C.

Feature Summary

• Eliminates the need for external LC output filters through direct speaker drive capability.
• Integrates pop-noise reduction circuits to minimize audible artifacts during startup and shutdown transitions.
• Includes comprehensive protection mechanisms such as thermal shutdown and short-circuit protection with automatic recovery.

Applications

• Mobile phone audio systems
• Portable electronic devices
• Battery-powered audio equipment

Procurement Notes

Verify the specific suffix E2 against the manufacturer's latest documentation to confirm compliance with current environmental standards and material declarations. Ensure the ordering part number matches the required package variant and tape-and-reel specifications. Cross-reference the datasheet revision date to validate all electrical parameters before finalizing procurement decisions.

Selection Notes

Select this component when designing space-constrained portable audio circuits that require high efficiency without complex output filtering. It is suitable for single-channel mono speaker drives where low standby current and rapid wake-up times are critical. Consider the fixed gain configuration if variable gain control is not required by the system architecture.

Part Context

This part belongs to the BD546xGUL series of wafer-level CSP packaged low-voltage monaural Class-D speaker amplifiers. The series targets mobile phones and portable electric devices, offering various configurations including fixed gain and ALC types. The BD5460GUL specifically provides a fixed gain solution optimized for simple analog input interfaces.

Replacement Considerations

Consult official substitution lists for compatible alternatives within the BD546x family or other ROHM Class-D amplifiers. Verify pin compatibility and electrical parameter alignment before replacing existing designs with similar part numbers.