3 W filter-free class D audio power amplifier

The TS4962M is a differential Class-D BTL power amplifier. It is able to drive up to 2.3 W into a 4 Ω load and 1.4 W into a 8 Ω load at 5 V. 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 and click reduction circuitry provides low on/off switch noise while allowing the device to start within 5 ms. A standby function (active low) allows the reduction of current consumption to 10 nA typ.

Key Features

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

Circuit Diagram

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Technical Documentation

Product Specifications
Description Version Size
DS4436 DS4436: 3 W filter-free class D audio power amplifier 5.0 1 MB

Presentations & Training Material

Description Version Size
ST offering in Wearable - Analog and Mixed Signal Portfolio 3.0 1 MB

Publications and Collaterals

Description Version Size
TS4962 2.1 118 KB
Description Version Size
ST’s solutions for mobile devices 3.2 3 MB

Sample & Buy

Part Number Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
TS4962MEIJT Chip Scale Package 0.5mm pitch Tape And Reel -40 85 Active 0.321 1000 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY

(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TS4962MEIJT ActiveChip Scale Package 0.5mm pitchIndustrialEcopack3 0 0

(**) The Material Declaration forms available on st.com 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.