NA1150GSAE4P

Overview

The NA1150GSAE4P is an automotive-grade monaural BTL audio switching driver manufactured by Nisshinbo Micro Devices Inc. It utilizes a CMOS process and accepts PWM input signals to drive speakers with up to 1.5W output power at 5V supply into an 8Ω load. The device operates within a supply voltage range of 2.6V to 5.5V and supports an extended temperature range from -40°C to +125°C. Key electrical characteristics include a typical quiescent current of 2.0mA and an on-resistance of 0.5Ω. It integrates comprehensive protection features such as over-temperature detection, over-current detection, UVLO, and load diagnostics.

Feature Summary

• Integrates load diagnostics to detect speaker connection anomalies including open loads, shorted loads, and shorts to V+ or GND via an open-drain fault notification pin.
• Supports multiple startup sequences allowing selection between normal operation, load diagnostic mode, and single-ended PWM input modes based on input pin states.
• Includes robust protection mechanisms for over-temperature, over-current, and under-voltage lockout (UVLO) to ensure system reliability in harsh environments.
• Accepts both differential and single-ended PWM input signals directly from microcontrollers, simplifying interface design.

Applications

• Automotive instrument cluster systems
• Infotainment audio applications
• ADAS voice speech and sound reproduction designs

Procurement Notes

Verify the specific ordering suffix 'AE4P' corresponds to the DFN2323-8-GS package and E4 taping direction as defined in the official order information table. Confirm that the component meets AEC-Q100 Grade 1 requirements for your target chassis or body control application. Ensure compatibility with Sn2Bi plating specifications if lead-free compliance is mandatory for your assembly process.

Selection Notes

Select this component when designing microcontroller-based sound systems requiring integrated load diagnostics and fault reporting. It is suitable for space-constrained designs due to its small footprint and minimal external component count. Consider the thermal resistance characteristics relative to your PCB layer stack-up to manage junction temperature effectively under maximum load conditions.

Part Context

The NA1150 series is part of Nisshinbo Micro Devices' portfolio of automotive audio solutions, resulting from the merger of Ricoh Micro Devices and New Japan Radio. These devices are engineered for high reliability in vehicle electronics, offering specialized functions like load diagnostics tailored for automotive safety and infotainment standards.

Replacement Considerations

Public confirmed substitute part numbers: None identified in source material.