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3 W filter-free class D audio power amplifier
  • active Active

The TS4962M is a differential Class-D BTL power amplifier. It is able to drive up to 2.3W into a 4Ω load and 1.4W into a 8Ω load at 5V. It achieves outstanding efficiency (88%typ.) compared to classical Class-AB audio amps.

The gain of the device can be controlled via two external gain-setting resistors. Pop & click reduction circuitry provides low on/off switch noise while allowing the device to start within 5ms. A standby function (active low) allows the reduction of current consumption to 10nA typ.

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Errata Sheet
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Key Features

  • Operating from VCC= 2.4V to 5.5V
  • Standby mode active low
  • Output power: 3W into 4Ω and 1.75W into 8Ω with 10% THD+N max and 5V power supply.
  • Output power: 2.3W @5V or 0.75W @ 3.0V into 4Ω with 1% THD+N max.
  • Output power: 1.4W @5V or 0.45W @ 3.0V into 8Ω with 1% THD+N max.
  • Adjustable gain via external resistors
  • Low current consumption 2mA @ 3V
  • Efficiency: 88% typ.
  • Signal to noise ratio: 85dB typ.
  • PSRR: 63dB typ. @217Hz with 6dB gain
  • PWM base frequency: 250kHz
  • Low pop & click noise
  • Thermal shutdown protection
  • Available in flip-chip 9 x 300μm (Pb-free)

Circuit Diagram

Design Resources


Technical Documentation

Product Specifications

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DS4436: 3W filter-free class D audio power amplifier
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Sample & Buy

Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
TS4962MEIJTActiveChip Scale Package 0.5mm pitchTape And Reel-4085_-.321Distributor reported inventory date: 2016-02-06
Distributor NameRegionStockMin. order

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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