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Product Detailed Parameters
- Description：IC AMP CLSS D STER 5W POWERSSO36
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Class D
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：5W x 2 @ 8Ohm
- Voltage - Supply：5V ~ 14V
- Features：Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
- Mounting Type：Surface Mount
- Supplier Device Package：PowerSSO-36 EPD
- Package / Case：36-PowerBFSOP (0.295", 7.50mm Width)
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The TDA7491LP13TR is a dual BTL Class-D audio amplifier manufactured by STMicroelectronics, designed for LCD TVs and monitors. It operates on a single power supply ranging from 5V to 14V. The device delivers 5W + 5W continuous output power into an 8Ω load at 10% THD with 9V supply, or 5W + 5W into a 4Ω load at 10% THD with 6.6V supply. It features high efficiency of approximately 90%, differential inputs, and filterless operation. The component is housed in a PowerSSO-36 EPD package.
Feature Summary
- Filterless operation reduces external component count
- Differential inputs minimize common-mode noise
- No pop sound during turn-on/off transitions
- Externally synchronizable for multi-amplifier systems
Applications
- LCD TV audio systems
- Monitor audio amplification
- Single-supply stereo audio applications
Procurement Notes
Verify the specific suffix '13TR' against official STMicroelectronics documentation to confirm tape-and-reel packaging and pinout compatibility. Ensure the design accommodates the 5V to 14V supply range and 4Ω to 8Ω load requirements. Confirm that the PowerSSO-36 EPD thermal solution meets system constraints without a separate heatsink.
Selection Notes
Select this component when a low-power, high-efficiency stereo amplifier is required for displays operating within a 14V maximum supply. It is suitable for designs prioritizing minimal external components through filterless topology. Verify that the 5W per channel output capability aligns with speaker impedance and volume requirements.
Part Context
This part belongs to the TDA7491 family, which includes variants like TDA7491P and TDA7491HV. These devices share pin-to-pin compatibility but differ in output power ratings and voltage handling capabilities. The LP variant specifically targets lower power applications compared to the HV series.
Replacement Considerations
TDA7491P and TDA7491HV are pin-to-pin compatible alternatives within the same family. Selection depends on whether higher output power or different voltage ranges are needed.
