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Nisshinbo NA1150 Audio Switching Amplifier

Nisshinbo NA1150 Audio Switching Amplifier is a one-chip device with differential or single-ended Pulse Width Modulation (PWM) input. This audio amplifier drives a loudspeaker with a pulse-width modulated audio signal from the microcomputer. The NA1150 amplifier offers typical 1.2W output power into an 8Ω speaker at 10% THD+N from a 5VDD voltage source. This audio amplifier includes over-current detection, load diagnostics, and thermal shutdown functions.

The Nisshinbo NA1150 amplifier operates within the -40°C to +125°C temperature range. It is AEC-Q100 qualified and complies with general-purpose and consumer application grades. The NA1150 amplifier is used in microcontroller-based sound systems, including digital signage equipment, security equipment, ADAS, and household appliances.

Features

  • Differential or single-ended Pulse Width Modulation (PWM) input
  • Detection functions:
    • Load diagnostics
    • Thermal shutdown
    • Over current
  • 1.2W typical output power at VDD=5V, RL=8Ω BTL, THD=10%
  • 2.6V to 5.5V output voltage range
  • Monaural BTL output
  • ≤1μA stand-by mode current
  • -40°C to 125°C operating temperature range
  • AEC-Q100 qualified

Applications

  • Security equipment
  • Digital signage equipment
  • Household appliances
  • Instrument cluster systems
  • Infotainment audio
  • ADAS

Application Circuit Diagram

Application Circuit Diagram - Nisshinbo NA1150 Audio Switching Amplifier
Published: 2024-02-20 | Updated: 2024-11-05