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Product Detailed Parameters
- Description：IC AMP CLASS AB MONO 700MW 8MSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Class AB
- Output Type：1-Channel (Mono)
- Max Output Power x Channels @ Load：700mW x 1 @ 8Ohm
- Voltage - Supply：2.5V ~ 5.5V
- Features：Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
- Mounting Type：Surface Mount
- Supplier Device Package：8-HVSSOP
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The TPA731DGNR is a mono, Class-AB audio power amplifier manufactured by Texas Instruments. It delivers 0.7W of output power and operates on a supply voltage range of 2.5V to 5.5V. The device features differential inputs and includes active high shutdown functionality for power-sensitive applications. During shutdown mode, the supply current drops to 1.5 nA. It incorporates short-circuit and thermal protection mechanisms to ensure system reliability. The component is housed in an 8-pin HVSSOP package with an exposed pad.
Feature Summary
- Features differential input architecture for improved noise rejection
- Includes active high shutdown mode with ultra-low quiescent current
- Integrated short-circuit and thermal protection for robust operation
Applications
- Portable audio devices requiring low-voltage operation
- Power-sensitive consumer electronics
- Mono audio channel amplification systems
Procurement Notes
Verify the specific ordering suffix 'GNR' confirms the tape-and-reel packaging format and the HVSSOP-8EP package type. Ensure the revision level matches the design requirements. Confirm that the manufacturer is Texas Instruments to avoid counterfeit components. Check for any specific handling instructions related to the exposed pad thermal termination.
Selection Notes
Select this component when a single-channel, low-voltage Class-AB amplifier is required. The differential input capability makes it suitable for noisy environments. The 0.7W output power rating defines its suitability for small speakers or buzzers. Consider the 2.5V minimum supply voltage constraint for battery-powered designs.
Part Context
This part belongs to the TPA731 series of low-voltage audio amplifiers. It is designed for portable applications where power efficiency and sound quality are balanced. The HVSSOP package allows for compact PCB layouts. The series emphasizes ease of use with minimal external components required for basic operation.
Replacement Considerations
Check for direct pin-compatible alternatives within the same family. Verify that substitute parts support the same 2.5V to 5.5V supply range and offer comparable 0.7W output power. Ensure the replacement also provides differential inputs and similar protection features.
