Product details

Output power (W) 0.025 Analog supply (min) (V) 2.3 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 100 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.7 Architecture Class-AB Iq per channel (typ) (mA) 1.05
Output power (W) 0.025 Analog supply (min) (V) 2.3 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 100 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.7 Architecture Class-AB Iq per channel (typ) (mA) 1.05
DSBGA (YFF) 16 3.24 mm² 1.8 x 1.8
  • Patented DirectPath Technology Eliminates Need for DC-Blocking Capacitors
    • Outputs Biased at 0 V
    • Excellent Low Frequency Fidelity
  • Active Click and Pop Suppression
  • HI-Z Output Mode Allows Sharing Output Jack
  • 2.1 mA Typical Supply Current
  • Fully Differential Inputs Reduce System Noise
    • Also Configurable as Single-Ended Inputs
  • SGND Pin Eliminates Ground Loop Noise
  • Constant Maximum Output Power from 2.3 V to 5.5 V Supply
    • Simplifies Design to Prevent Acoustic Shock
  • MicrosoftTM Windows VistaTM Compliant
  • 100 dB Power Supply Noise Rejection
  • Wide Power Supply Range: 2.3 V to 5.5 V
  • Gain Settings: 0 dB and 6 dB
  • Short-Circuit and Thermal-Overload Protection
  • ±8 kV HBM ESD Protected Outputs
  • Small Package Available
    • 16-Ball, 1.6 x 1.6 mm, 0.4 mm Pitch WCSP
  • APPLICATIONS
    • Smart Phones / Cellular Phones
    • Portable Media / MP3 Players
    • Notebook Computers
    • Portable Gaming

DirectPath is a trademark of Texas Instruments.
Windows Vista is a trademark of Microsoft Corporation.

  • Patented DirectPath Technology Eliminates Need for DC-Blocking Capacitors
    • Outputs Biased at 0 V
    • Excellent Low Frequency Fidelity
  • Active Click and Pop Suppression
  • HI-Z Output Mode Allows Sharing Output Jack
  • 2.1 mA Typical Supply Current
  • Fully Differential Inputs Reduce System Noise
    • Also Configurable as Single-Ended Inputs
  • SGND Pin Eliminates Ground Loop Noise
  • Constant Maximum Output Power from 2.3 V to 5.5 V Supply
    • Simplifies Design to Prevent Acoustic Shock
  • MicrosoftTM Windows VistaTM Compliant
  • 100 dB Power Supply Noise Rejection
  • Wide Power Supply Range: 2.3 V to 5.5 V
  • Gain Settings: 0 dB and 6 dB
  • Short-Circuit and Thermal-Overload Protection
  • ±8 kV HBM ESD Protected Outputs
  • Small Package Available
    • 16-Ball, 1.6 x 1.6 mm, 0.4 mm Pitch WCSP
  • APPLICATIONS
    • Smart Phones / Cellular Phones
    • Portable Media / MP3 Players
    • Notebook Computers
    • Portable Gaming

DirectPath is a trademark of Texas Instruments.
Windows Vista is a trademark of Microsoft Corporation.

The TPA6136A2 (sometimes referred to as TPA6136) is a DirectPath™ stereo headphone amplifier that eliminates the need for external dc-blocking output capacitors. Differential stereo inputs and built-in resistors set the device gain, further reducing external component count. Gain is selectable at 0 dB or 6 dB. The amplifier drives 25 mW into 16 speakers from a single 2.3 V supply. The TPA6136A2 (TPA6136) provides a constant maximum output power independent of the supply voltage, thus facilitating the design for prevention of acoustic shock.

The TPA6136A2 (TPA6136) features fully differential inputs with an integrated low pass filter to reduce system noise pickup between the audio source and the headphone amplifier and to reduce DAC out-of-band noise. The high power supply noise rejection performance and differential architecture provides increased RF noise immunity. For single-ended input signals, connect INL+ and INR+ to ground.

The device has built-in pop suppression circuitry to completely eliminate disturbing pop noise during turn-on and turn-off. The amplifier outputs have short-circuit and thermal-overload protection along with ±8 kV HBM ESD protection, simplifying end equipment compliance to the IEC 61000-4-2 ESD standard.

The TPA6136A2 (TPA6136) operates from a single 2.3 V to 5.5 V supply with 2.1 mA of typical supply current. Shutdown mode reduces supply current to less than 1 µA.

The TPA6136A2 (sometimes referred to as TPA6136) is a DirectPath™ stereo headphone amplifier that eliminates the need for external dc-blocking output capacitors. Differential stereo inputs and built-in resistors set the device gain, further reducing external component count. Gain is selectable at 0 dB or 6 dB. The amplifier drives 25 mW into 16 speakers from a single 2.3 V supply. The TPA6136A2 (TPA6136) provides a constant maximum output power independent of the supply voltage, thus facilitating the design for prevention of acoustic shock.

The TPA6136A2 (TPA6136) features fully differential inputs with an integrated low pass filter to reduce system noise pickup between the audio source and the headphone amplifier and to reduce DAC out-of-band noise. The high power supply noise rejection performance and differential architecture provides increased RF noise immunity. For single-ended input signals, connect INL+ and INR+ to ground.

The device has built-in pop suppression circuitry to completely eliminate disturbing pop noise during turn-on and turn-off. The amplifier outputs have short-circuit and thermal-overload protection along with ±8 kV HBM ESD protection, simplifying end equipment compliance to the IEC 61000-4-2 ESD standard.

The TPA6136A2 (TPA6136) operates from a single 2.3 V to 5.5 V supply with 2.1 mA of typical supply current. Shutdown mode reduces supply current to less than 1 µA.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 7
Type Title Date
* Data sheet 25-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER WITH POP SUPPRESSION AND HI-Z MODE datasheet (Rev. A) 02 Aug 2009
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019
More literature Журнал по применению аналоговых компонентов 2кв. 2010 08 Aug 2011
Analog Design Journal 2Q 2010 Issue Analog Applications Journal 06 May 2010
Analog Design Journal Precautions for connecting APA outputs to other devices 06 May 2010
EVM User's guide TPA6136A2EVM - User Guide (Rev. A) 01 Dec 2009

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPA6136A2YFFEVM — TPA6136A2YFF Evaluation Module

The TPA6136A2YFFEVM allows the engineer to evaluate the TPA6136A2, a stereo DirectPath™ (capacitor-free) headphone amplifier with 2 gain settings (0dB and +6dB). In addition, the TPA6136A2 includes a Hi-Z mode, allowing for multiple signals to be driven on the same output jack.

User guide: PDF
Not available on TI.com
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins CAD symbols, footprints & 3D models
DSBGA (YFF) 16 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos