The TPA321DGN is a mono audio power amplifier designed for low-voltage applications, operating with supply voltages ranging from 2.5V to 5.5V. It can deliver up to 350 mW of output power at 5V and 250 mW at 3.3V into an 8-ohm load, maintaining low total harmonic distortion plus noise (THD+N) of less than 1% across the voice band frequencies. The amplifier features a bridge-tied load (BTL) configuration, which eliminates the need for external coupling capacitors, making it suitable for compact, battery-powered devices. The device includes thermal and short-circuit protection, ensuring reliability in various operating conditions. It has a very low supply current of 0.15 µA in shutdown mode, making it ideal for power-sensitive applications. The TPA321DGN is available in an 8-pin SOIC surface-mount package, which helps reduce board space by 50% compared to traditional packages. This amplifier is particularly well-suited for applications such as cellular communications and other narrow-band audio systems.
350-mW Mono Class-AB Audio Amplifier with Differential Inputs 8-MSOP-PowerPAD -40 to 85
350-mW Mono Class-AB Audio Amplifier with Differential Inputs 8-HVSSOP -40 to 85 Product overview: TPA321DGN from Texas Instruments is an Audio Amplifier for embedded electronics, industrial equipment, maintenance repair, OEM production, and component sourcing. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include key electrical ratings, package details, and application requirements. Search-friendly keywords include Audio Amplifier, Audio Amplifiers, electronic component, datasheet, replacement part. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 742-TPA321DGN can be used for catalog matching and distributor lookup.
Manufacturer: Texas Instruments
Win Source Part Number: 033477-TPA321DGN
Packaging: Tube/Rail
Type: Class AB
Features: Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
Mounting: SMD (SMT)
Output Type: 1-Channel (Mono)
Max Output Power x Channels @ Load: 700mW x 1 @ 8 Ohm
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 85°C (TA)
Case / Package: 8-MSOP-PowerPad
Dimension: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Supply Voltage - Operating: 2.5 V to 5.5 V
Popularity: Medium
Fake Threat In the Open Market: 54 pct.
Supply and Demand Status: Limited
Amplifier IC 1-Channel (Mono) Class AB 8-HVSSOP
Amplifier IC 1-Channel (Mono) Class AB 8-HVSSOP
Audio Amplifiers 350-mW Low-Voltage w/diff inputs
IC AMP CLASS AB MONO 700MW 8MSOP
| Texas Instruments | ERSAELECTRONICS PTE. LTD. | Win Source Electronics | DigiKey | Quarktwin Technology Ltd. | VAST STOCK CO., LIMITED | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|---|
| Product Category | Audio Amplifier Chips | Audio Amplifier Chips | Audio Amplifier Chips | Audio Amplifier Chips | Audio Amplifier Chips | Operational Amplifiers | Operational Amplifiers |
| Product Number | TPA321DGN | 742-TPA321DGN | 033477-TPA321DGN | 296-12563-5-ND | TPA321DGN | TPA321DGN | TPA321DGN |
| Product Name | TPA321 350-mW Mono Class-AB Audio Amplifier with Differential Inputs | Audio Amplifier | Linear - Linear - Amplifiers - Audio - TPA321DGN | Audio Amplifiers | Audio Amplifiers | Audio Amplifiers | Integrated Circuits (ICs) - Linear - Amplifiers |
| RoHS Compliant | RoHS | RoHS | RoHS | ||||
| Supply Voltage (VS) | 2.5 to 5.5 volts | 2.5 to 5.5 volts | 2.5 to 5.5 volts | 2.5 to 5.5 volts | 2.5 to 5.5 volts | 5.5 to 2.5 volts | |
| Output Power | 0.3500 watts | 0.7000 watts | 0.7000 watts | 0.7000 watts | |||
| Operating Temperature | -40 to 85 C (-40 to 185 F) | -40 C (-40 F) | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | |
| Package Type | MSOP-PowerPAD,SOIC | Rail/Tube | SOP; MSOP; 8-MSOP-PowerPad | MSOP; TSSOP; "8-TSSOP, 8-MSOP (0.118"", 3.00mm Width) Exposed Pad" | SSOP; SOP; MSOP; TSSOP; 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) Exposed Pad | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) Exposed Pad |
