| Allicdata Part #: | LM48901SQX/NOPB-ND |
| Manufacturer Part#: |
LM48901SQX/NOPB |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Texas Instruments |
| Short Description: | IC AMP AUDIO 2.8W D QUAD 32WQFN |
| More Detail: | Amplifier IC 4-Channel (Quad) Class D 32-WQFN (5x5... |
| DataSheet: | LM48901SQX/NOPB Datasheet/PDF |
| Quantity: | 1000 |
| Series: | Boomer®, PowerWise® |
| Packaging: | Tape & Reel (TR) |
| Part Status: | Active |
| Type: | Class D |
| Output Type: | 4-Channel (Quad) |
| Max Output Power x Channels @ Load: | 2.8W x 4 @ 4 Ohm |
| Voltage - Supply: | 2.7 V ~ 5.5 V |
| Features: | Depop, Differential Inputs, I²C, I²S, Short-Circuit and Thermal Protection, Shutdown |
| Mounting Type: | Surface Mount |
| Operating Temperature: | -40°C ~ 85°C (TA) |
| Supplier Device Package: | 32-WQFN (5x5) |
| Package / Case: | 32-WFQFN Exposed Pad |
| Base Part Number: | LM48901 |
Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us: sales@allicdata.com
LM48901SQX/NOPB Application Field and Working Principle
Introduction
LM48901SQX/NOPB (hereinafter referred to as “This component”) is a low voltage, low power, dual-channel audio amplifier designed for consumer audio applications. It belongs to the broad category of linear - amplifiers - audio products. It is an efficient, cost-effective choice for products such as portable and consumer products. This component integrates temperature protection, shutdown mode and signal distortion detection circuit, and supports multiple protection configurations, providing protection functions such as over-temperature protection, output short circuit and pop noise. This component can work stably in low voltage and low power environment.
Application Field:
This component is a versatile audio amplifier solution with high efficiency, low power consumption and high performance. Therefore, it is widely used in all kinds of consumer audio devices. This component is particularly suitable for products with strict requirements for audio quality, such as portable multimedia products, head mounted displays, multimedia speakers, gaming consoles, TV sets, car audio systems and other consumer audio devices.
Working Principle:
This component is an audio amplifier solution integrated with dual-channel GBL-emitter complementary input and BTL output structure. Its core consists of BTL output transistors, input transistors, current-limiting offset elimination circuit, temperature protection circuit, output short circuit protection circuit, distortion detection circuit and shutdown mode circuit. The working principle of this component can be divided into four parts: dual-channel input, BTL output, protection circuit and shutdown mode.
Dual-Channel Input
This component has two input channels, which can be connected to two audio signals respectively. The two signals will pass through two input transistors and generate two corresponding output signals. Two input transistors use complementary symmetry to reduce distortion effectively. The two input signals can be combined by combining the outputs of the two transistors. This component is equipped with a current limiting offset elimination circuit to ensure the reliability of the input signal and the output accuracy of the power amplifier.
BTL Output
The output stage of This component is designed with BTL output structure to ensure efficient and stable output. The BTL output has the characteristics of big output power and low heat generation. The output transistor adopts the emitter follower structure, which can reduce the terminal resistance, improve the high frequency scan performance of the audio signal, and ensure the high fidelity effect. Moreover, the supply voltage can be selected flexibly according to the actual needs of the product.
Protection Circuit
This component also integrates multiple functions of temperature protection, output short circuit protection and pop noise protection. The temperature protection circuit is designed to detect the junction temperature of the device and shut down the output when the temperature exceeds the rated temperature. The output short circuit protection circuit is designed to detect the output short circuit status in real time, and protect the device from damage when the short circuit occurs. The pop noise protection circuit is designed to detect the pop noise generated when the power supply is turned on and off, and avoid the harm to the human ear caused by the sudden increase of sound.
Shutdown Mode
This component is also equipped with a shutdown mode circuit. When the shutdown pin is pulled low, the output of the power amplifier will be shut down completely and no output will be generated. This mode is suitable for portable devices that need to be powered on and off regularly. When in shutdown state, the power consumption of the device can be reduced to less than 1uA, so that the power consumption of the product can be saved and the battery life can be extended.
Conclusion
This LM48901SQX/NOPB component is designed for consumer audio applications such as portable multimedia products, head mounted displays, multimedia speakers, gaming consoles and TV sets. Its working principle is mainly composed of dual-channel input, BTL output, protection circuit and shutdown mode. This component can work stably in low voltage and low power environment, and its temperature protection, output short circuit protection and pop noise protection functions can effectively protect products from damage. It is widely used in all kinds of consumer audio devices.
The specific data is subject to PDF, and the above content is for reference
| Part Number | Manufacturer | Price | Quantity | Description |
|---|
| LM4820M-6 | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR 1W MONO ... |
| LM4809LD/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR .105W ST... |
| LM4867MTE/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR 3W AB 20... |
| LM4839LQ/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR 2.2W STE... |
| LM4879ITPX/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR 1.1W MON... |
| LM4892MBD | Texas Instru... | 0.0 $ | 1000 | BOARD EVALUATION LM4892ML... |
| LM4893MMBD | Texas Instru... | 0.0 $ | 1000 | BOARD EVALUATION LM4893MM... |
| LM4889MM/NOPB | Texas Instru... | -- | 33000 | IC AMP AUDIO PWR 1W MONO ... |
| LM48410SQBD | Texas Instru... | 0.0 $ | 1000 | BOARD EVALUATION FOR LM48... |
| LM4876MM/NOPB | Texas Instru... | -- | 1000 | IC AMP AUDIO PWR 1.5W AB ... |
| LM4863N | Texas Instru... | -- | 1000 | IC AMP AUDIO PWR 3.2W STE... |
| LM4843MHX | Texas Instru... | -- | 1000 | IC AMP AUDIO PWR 2.2W AB ... |
| LM4841MH/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR 2.2W AB ... |
| LM4841LQ/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR 2.2W STE... |
| LM4865MMX | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR 1W MONO ... |
| LM4835MT | Texas Instru... | -- | 1000 | IC AMP AUDIO PWR 2.2W AB ... |
| LM4802BLQ/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR MONO AB ... |
| LM4879MM/NOPB | Texas Instru... | -- | 1000 | IC AMP AUDIO PWR 1.1W AB ... |
| LM4862MX | Texas Instru... | -- | 1000 | IC AMP AUDIO PWR .825W AB... |
| LM48903TLEVAL/NOPB | Texas Instru... | 0.0 $ | 1000 | BOARD EVAL FOR LM48903LM4... |
| LM48511SQX/NOPB | Texas Instru... | 1.05 $ | 1000 | IC AMP AUDIO PWR 6.7W MON... |
| LM4850MM/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR 1.9W AB ... |
| LM4881MMX/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR .3W STER... |
| LM4871MM | Texas Instru... | -- | 1000 | IC AMP AUDIO PWR 3W MONO ... |
| LM4873MTE-1 | Texas Instru... | -- | 1000 | IC AMP AUDIO PWR 3W STER ... |
| LM4845ITL/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR 1.15W AB... |
| LM4893ITLBD | Texas Instru... | 0.0 $ | 1000 | BOARD EVALUATION LM4893IT... |
| LM4864N | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR .725W MO... |
| LM4892MM/NOPB | Texas Instru... | -- | 1000 | IC AMP AUDIO PWR 1W MONO ... |
| LM4857ITL/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AUDIO SUBSYSTEM W/3D 3... |
| LM4892MMX/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR 1W MONO ... |
| LM4810MM/NOPB | Texas Instru... | -- | 9000 | IC AMP AUDIO PWR .105W AB... |
| LM4871N | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR 3W MONO ... |
| LM4832MX/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR .25W AB ... |
| LM4867MTX/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR 3W AB 20... |
| LM4895MM/NOPB | Texas Instru... | 0.0 $ | 1000 | IC AMP AUDIO PWR 1.4W AB ... |
| LM4892MMBD | Texas Instru... | 0.0 $ | 1000 | BOARD EVALUATION LM4892MM... |
| LM4860MX/NOPB | Texas Instru... | -- | 1000 | IC AMP AUDIO PWR 1.15W AB... |
| LM48822TLEVAL | Texas Instru... | 0.0 $ | 1000 | BOARD EVAL FOR LM48822TLL... |
IC AUDIO DRIVER CLASS D 16-SOICAmplifier...
IC AMP AUDIO PWR 1.23W AB 20TQFNAmplifie...
IC AUDIO AMPAmplifier IC
IC AMP AUDIO PWR 1W MONO 8USMDAmplifier ...
IC AMP AUDIO PWR 1.5W AB 28TSSOPAmplifie...
IC AMP AUDIO 2.3W MONO D 36UCSPAmplifier...
LM48901SQX/NOPB Datasheet/PDF