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SGM4547
High Speed Piezo-Sounder and Ultra-Sound Transducer Driver
High Speed Piezo-Sounder and Ultra-Sound Transducer Driver
GENERAL DESCRIPTION

The SGM4547 is matched dual-channel high speed piezo-sounder and ultra-sound transducer driver which is integrated boost DC/DC to achieve high driven voltage. The unique circuit design provides excellent performance for delivering 2A peak current to highly capacitive loads.

To reduce problems with time and clock skew, SGM4547 is a good choice, with matching delays and maintaining integrity of input to output pulse-widths. Matching rise/fall delay times improve the drive capability and speed. Non-overlapping drive technology is used to minimize the dynamic switching loss.

In order to get higher volume sound from piezo-sounder and ultra-sound transducer, boost DC/DC is integrated to provide high driven voltage. The tiny package makes the device very suitable for space limited applications.

The SGM4547 is available in a Green TDFN-3×3-14L package. It operates over an ambient temperature range of -40 to +85.

PIN CONFIGURATIONS

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FEATURES
  • Integrated Boost DC/DC to Achieve 26V (MAX) Driven Voltage

  • 2A Peak Driven Current to Drive Capacitive Loads

  • Wide Operating Voltage Range

  • High Speed Driver

  • Very Short Rise Time and Fall Time

  • Improved Response Times

  • Matched Rise Time and Fall Time

  • Independent Enable Control for Each Channel

  • Reduced Clock Skew between Dual Channels

  • Output is at Low under UVLO Protection, Enable Pin Floating or Disable Status

  • High Noise Immunity

  • Improved Clocking Rate

  • Low Supply Current and Output Impedance

  • -40 to +85 Operating Temperature Range

  • Available in a Green TDFN-3×3-14L Package

APPLICATIONS

Ultra-Sound Transducer Driver

Piezo-Sounder Driver

ORDERING INFORMATION
Part Number Status Package Pins Pb-Free Temp Range
SGM4547YTDK14G/TR Production TDFN-3×3-14L 14 Y -40℃ to +85℃ Samples