1 W differential input/output audio power amplifier with selectable standby

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  • The TS4994 is an audio power amplifier capable of delivering 1W of continuous RMS output power into an 8Ω load @ 5V. Due to its differential inputs, it exhibits outstanding noise immunity.

    An external standby mode control reduces the supply current to less than 10nA. An STBY MODE pin allows the standby to be active HIGH or LOW (except in the MiniSO-8 version). An internal thermal shutdown protection is also provided, making the device capable of sustaining short-circuits.
    The device is equipped with common mode feedback circuitry allowing outputs to be always biased at VCC/2 regardless of the input common mode voltage.
    The TS4994 is designed for high quality audio applications such as mobile phones and requires few external components.

    Key Features

    • Available in DFN10 3x3 (0.5mm pitch) & MiniSO-8
    • Ultra fast startup time: 15ms typ.
    • All lead-free packages
    • Ultra-low consumption in standby mode (10nA)
    • 90dB CMRR @ 217Hz
    • Differential inputs
    • 100dB PSRR @ 217Hz with grounded inputs
    • Near-zero pop & click
    • 1W rail-to-rail output power @ VCC =5V, THD = 1%, F = 1kHz, with 8Ωload
    • Selectable standby mode (active low or active high)
    • Operating range from VCC = 2.5V to 5.5V

Sample & Buy

Part Number
Package
Packing Type
Temperature (°C) Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
More info
Order from Distributors
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min
max
TS4994IST MSOP/TSSOP 8 Tape And Reel - -
Active
0.564 1000 EAR99
MORE INFO

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofTS4994IST

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5696 1 Order Now
MOUSER WORLDWIDE 7889 1 Order Now

Distributor reported inventory date: 2019-09-27

Distributor Name

DIGIKEY

Stock

5696

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

7889

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-27

Buy now
TS4994IQT VDFPN 10 3x3x1.0 Tape And Reel - -
NRND
0.597 1000 EAR99
MORE INFO

Country of Origin:

MALAYSIA

No availability of distributors reported, please contact our sales office Buy now

TS4994IST

Package

MSOP/TSSOP 8

Packing Type

Tape And Reel

Unit Price (US$)

0.564*

Distributor availability ofTS4994IST

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5696 1 Order Now
MOUSER WORLDWIDE 7889 1 Order Now

Distributor reported inventory date: 2019-09-27

Distributor Name

DIGIKEY

Stock

5696

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

7889

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-27

Operating Temperature (°C)

(min)

-

(max)

-

Marketing Status

Active

Unit Price (US$)

0.564

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

TS4994IQT

Package

VDFPN 10 3x3x1.0

Packing Type

Tape And Reel

Unit Price (US$)

0.597*

Operating Temperature (°C)

(min)

-

(max)

-

Marketing Status

NRND

Unit Price (US$)

0.597

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 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

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Technical Documentation

    • Description Version Size Action
      DS3742
      1W differential input/output audio power amplifier with selectable standby
      5.1
      474.73 KB
      PDF
      DS3742

      1W differential input/output audio power amplifier with selectable standby

Presentations & Training Material

    • Description Version Size Action
      ST offering in Wearable - Analog and Mixed Signal Portfolio 3.0
      1.47 MB
      PDF

      ST offering in Wearable - Analog and Mixed Signal Portfolio

Publications and Collaterals

    • Description Version Size Action
      ST’s solutions for mobile devices 3.2
      2.13 MB
      PDF

      ST’s solutions for mobile devices

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TS4994IQT
NRND
VDFPN 10 3x3x1.0 Industrial Ecopack1
TS4994IST
Active
MSOP/TSSOP 8 Industrial Ecopack3

TS4994IQT

Package:

VDFPN 10 3x3x1.0

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

VDFPN 10 3x3x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack1

TS4994IST

Package:

MSOP/TSSOP 8

Material Declaration**:

Marketing Status

Active

Package

MSOP/TSSOP 8

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) 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.