| Allicdata Part #: | 497-2180-5-ND |
| Manufacturer Part#: |
TDA7494S |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | STMicroelectronics |
| Short Description: | IC AMP AUDIO 10W AB MULTIWATT15 |
| More Detail: | Amplifier IC 1-Channel (Mono) Class AB 15-Multiwat... |
| DataSheet: |  TDA7494S Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | 0.00000 |
Specifications
| Series: | -- |
| Packaging: | Tube |
| Part Status: | Obsolete |
| Type: | Class AB |
| Output Type: | 1-Channel (Mono) |
| Max Output Power x Channels @ Load: | 10W x 1 @ 8 Ohm |
| Voltage - Supply: | 11 V ~ 35 V |
| Features: | Depop, Mute, Short-Circuit and Thermal Protection, Standby |
| Mounting Type: | Through Hole |
| Operating Temperature: | -20°C ~ 85°C (TA) |
| Supplier Device Package: | 15-Multiwatt |
| Package / Case: | Multiwatt-15 (Vertical, Bent and Staggered Leads) |
| Base Part Number: | TDA7494S |
Description
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The TDA7494S is a high efficiency, low power audio amplifier from STMicroelectronics. It is designed to provide high fidelity audio power amplification in a wide range of applications, including home theater systems, portable audio systems and car audio systems. The device is capable of delivering up to 18 W per channel of continuous power output into four ohm loads, with a total supply current of 1.3 A. The versatility of the TDA7494S makes it suitable for a broad range of audio applications, from general purpose stereo applications to complex multi-channel surround sound systems.The device includes an on-board power supply rail splitter and a external sense resistor, allowing its output power level to be adjusted to the optimum output power level. The total supply voltage of the device is between 10.8 V and 18 V, with a minimum quiescent current of 150 mA at no load.The TDA7494S operates on a 4-channel class AB amplifier stage, each channel designed to deliver up to 18 W of continuous power output. Each channel has a low band gain of 11 dB, a high band gain of 17 dB, a cut-off frequency of 380 Hz and a damped resonance frequency of 4 kHz. Additionally, each of the four channels have an input impedance of 10 kOhm.The TDA7494S also includes a thermal protection circuit, which itself can be used to ensure safety in the system by preventing overheating of the amplification stage. The device also incorporates an over-voltage and over-current protection mechanism, which shuts down the amplifier in case of any fault.To ensure maximum power efficiency of the internal amplifier stages, the TDA7494S includes a well-designed power management system. As part of this system, the device includes an on-board switching power supply, comprising two high power Mosfets and two diodes, which together help to minimize power losses resulting from power supply current variations. The TDA7494S is controlled by an integrated digital control interface, which can be accessed via the on-board control pins. This interface allows the user to easily program the device settings, such as class AB operating mode, power supply voltage, quiescent current, channel gain and output power. The device is also capable of adjusting the output power from 0 W to 18 W in 0.5 W steps, enabling precise and efficient control of the amplifier\'s power output.Overall, the TDA7494S is an excellent option for audio power applications requiring a high efficiency, low power amplifier with a wide dynamic range and precise control. Its on-board power management system and integrated digital control interface make this device an ideal choice for a wide range of audio power applications.
The specific data is subject to PDF, and the above content is for reference
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