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Product Detailed Parameters
- Description：IC AMP CLASS D MONO 1.95W 16QFN
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Class D
- Output Type：1-Channel (Mono)
- Max Output Power x Channels @ Load：1.95W x 1 @ 4Ohm
- Voltage - Supply：2.4V ~ 4.3V
- Features：Depop, Differential Inputs, Standby
- Mounting Type：Surface Mount
- Supplier Device Package：16-QFN (4x4)
- Package / Case：16-VQFN Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The TS4961TIQT is a Class D audio amplifier manufactured by STMicroelectronics, designed for single-channel (mono) applications. It operates within a supply voltage range of 2.4V to 4.3V and delivers a maximum output power of 1.95W into a 4-ohm load. The component is housed in a 16-VQFN package with exposed pad, measuring 4x4 mm, and supports surface mount installation. It functions reliably across an operating temperature range of -40°C to 85°C.
Feature Summary
- Integrates differential input capability for improved noise immunity
- Includes pop-and-click suppression circuitry to minimize audible transients during power-up and power-down
- Features a standby mode to reduce power consumption when the device is not in use
Applications
- Portable audio devices requiring mono amplification
- Low-voltage battery-powered consumer electronics
- Compact speaker systems in mobile gadgets
Procurement Notes
Verify component authenticity through authorized channels as the TS4961TIQT is listed as obsolete or end-of-life. Confirm that the 16-QFN package dimensions and pinout match the design requirements. Ensure compliance with RoHS3 standards if environmental regulations apply to the final assembly. Check for moisture sensitivity level 1 handling requirements during storage and reflow soldering processes.
Selection Notes
Select this component for designs requiring a compact, low-voltage Class D solution with integrated pop-and-click protection. The differential input feature suits noisy environments, while the standby mode aids in extending battery life. Verify that the 1.95W output into 4 ohms meets the acoustic requirements of the target application before finalizing the bill of materials.
Part Context
This part belongs to the TS4961 family of audio amplifiers from STMicroelectronics. It is specifically the TIQT variant, indicating the tape and reel packaging format and the specific thermal/mechanical characteristics of the 16-VQFN package. The base TS4961 model defines the core electrical performance and functional architecture shared across different packaging options.
Replacement Considerations
As the TS4961TIQT is marked as obsolete, verify availability of alternative packages within the TS4961 series or consult STMicroelectronics for recommended next-generation replacements. Ensure any substitute maintains the 16-VQFN footprint and compatible supply voltage range.
