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Diodes Incorporated PAM8904E Series Audio Amplifiers

Diodes Incorporated PAM8904E Series Audio Amplifiers are piezo sounder drivers with integrated charge pump boost converters. These Diodes Incorporated PAM8904E amplifiers drive a sounder at 27VPP from a 4.5V power supply and operate at 100kHz fixed frequency with 3X VIN output. The audio amplifiers come with built-in automatic shutdown and wake-up with longer battery life and feature thermal shutdown, over-current protection, over-voltage protection, and under-voltage lock-out. These amplifiers are available in U-QFN3030-16 (Type B), U-QFN3030-12 (Type A), and W-QFN2020-12 (Type US) packages. Typical applications include healthcare systems, alarm clocks, security devices, and home appliances.

Features

  • Come with an integrated charge pump boost converter
  • Provide a 3X VIN output
  • Available in U-QFN3030-16 (Type B), U-QFN3030-12 (Type A), and W-QFN2020-12 (Type US) packages
  • No voltage cross output at shutdown mode
  • Automatic standby and wake-up control
  • Low power consumption
  • Longer battery life
  • Features thermal protection, over-current protection, over-voltage protection, and under-voltage lock-out
  • Totally lead-free and fully RoHS compliant
  • Halogen and antimony-free Green device

Specifications

  • Capable of driving a piezo sounder with 27VPP from a 4.5V power supply
  • Operates at a fixed frequency of 100kHz
  • 1.5V to 5.5V supply voltage range
  • 18VPP output from 3V supply
  • 20Hz to 300kHz input signal
  • Can drive up to 47nF loading

Applications

  • Healthcare systems
  • Alarm clocks
  • Security devices
  • Home appliances

Application Circuit Diagram

Application Circuit Diagram - Diodes Incorporated PAM8904E Series Audio Amplifiers

Pin Assignment Diagram

Diodes Incorporated PAM8904E Series Audio Amplifiers
Published: 2019-11-11 | Updated: 2023-08-03