Diodes Incorporated
U QFN3030 16 Type B

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PAM8904Q

Automotive 18VPP output Peizo sounder driver

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Description

The PAM8904Q is a piezo sounder driver designed for driving a ceramic/piezo sounder or speaker with 18Vpp from a 3V power supply. A programmable charge pump boost converter allows the PAM8904Q Vout to operate in 1X, 2X and 3X mode.

The boost converter operates at a fixed frequency of 1.0MHz and provides a 9V output with a minimum number of external components and can drive loads of up to 15nF. PAM’s unique drive technology ensures minimal inrush current, low EMI and high efficiency.

Feature(s)

  • Supply voltage Range From 2.3V to 5V
  • 18VPP Output from a 3V Supply
  • Integrated Boost Converter Generates 9V Supply
  • Wide Input signal capability 20 Hz to 300KHz
  • No Voltage Cross Output At Shutdown Mode
  • Low Current Consumption
  • Automatic Standby and Wake-up Control
  • Over Temperature Shut Down and Short Circuit Protection
  • Automotive AECQ Grade 2
  • Available in Space Saving Packages 16pin QFN package

Application(s)

  • Automotive Alarms
  • Dash Board Audio
  • GPS
  • Health Care System
  • Alarm Clock
  • Security Device
  • Home Appliance

Product Specifications

Product Parameters

Minimum VDD (V) 2.3
Compliance (Only Automotive supports PPAP) Automotive
AEC Qualified Yes
Maximum VDD (V) 5.5 V
IQ (mA) 1 mA
Power/CH (W) @ THD=10% N/A
Power/CH (W) @ THD=1% N/A
Mono or Stereo Mono
BTL Yes
SE No
Class-D or AB D
Power Limit No
Anti-Sat No
Headphone Out No
Efficiency (%) N/A %
Volume/ Gain 3- Step
Gain Min N/A dB
Gain Max N/A dB
SNR N/A dB
PSRR N/A dB
Special Feature Boost Converter Built-in

Related Content

Packages

Technical Documents

Recommended Soldering Techniques

TN1.pdf