LM4960SQ/NOPB

Audio Amplifiers Overview

The LM4960SQ/NOPB is a piezoelectric speaker driver integrating a switching regulator and dual audio power amplifiers. It operates on a 3.0V to 7.0V supply with a 1.6MHz fixed switching frequency. The device delivers 24VP-P mono BTL output to ceramic speakers at less than 1.0% THD+N. It features low current shutdown, click and pop suppression, thermal protection, and external gain configuration.

Audio Amplifiers Feature Summary

• Integrates a boost converter and dual amplifiers for driving piezoelectric loads without output coupling capacitors
• Includes click and pop suppression circuitry to minimize audible transients during startup and shutdown
• Features externally configurable amplifier gain and a micropower shutdown mode for system power management

Audio Amplifiers Applications

• Mobile phones
• Personal Digital Assistants (PDAs)
• Low voltage portable electronic devices requiring minimal component count

Audio Amplifiers Procurement Notes

Verify the specific suffix SQ/NOPB against the manufacturer's latest datasheet to confirm package type and RoHS compliance status. Ensure the ordering information matches the exact pinout and thermal characteristics required for your PCB layout design before finalizing procurement.

Audio Amplifiers Selection Notes

Select this component when designing systems that require high efficiency and low component count for piezoelectric actuators. Consider the 1.6MHz switching frequency for EMI management and verify that the external inductor and capacitor values align with the recommended application circuits for stable operation.

Audio Amplifiers Part Context

This part belongs to the LM4960 series of piezoelectric speaker drivers manufactured by Texas Instruments. It utilizes Boomer audio power amplifier technology designed for high-quality output with minimal external components. The device is specifically optimized for mobile applications where low power consumption and small form factor are critical requirements.

Audio Amplifiers Replacement Considerations

Consult official substitution guides for equivalent piezoelectric drivers. Verify compatibility regarding switching frequency, supply voltage range, and thermal performance if replacing with other integrated amplifier solutions.