Product overview
Description
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.
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All 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
EDA Symbols, Footprints and 3D Models
STMicroelectronics - TS4994
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3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| TS4994IQT | Active | VDFPN 10 3x3x1.0 | Industrial | Ecopack1 | |
| TS4994IST | Active | MiniSO-8 | Industrial | 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.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TS4994IST | | | distributors No availability of distributors reported, please contact our sales office | ||||||||||
| TS4994IQT | | | distributors No availability of distributors reported, please contact our sales office |
TS4994IST Active
TS4994IQT Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors