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Product Detailed Parameters
- Description：IC AMP D STEREO 20W POWERSSO-36
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Class D
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：20W x 2 @ 8Ohm
- Voltage - Supply：5V ~ 18V
- Features：-
- Mounting Type：Surface Mount
- Supplier Device Package：PowerSSO-36 EPU
- Package / Case：36-PowerFSOP (0.295", 7.50mm Width)
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The TDA7491HVU13TR is a dual BTL Class-D audio amplifier from STMicroelectronics, housed in a PowerSSO-36 package with an exposed pad up (EPU) configuration. It operates on a single supply voltage ranging from 5 V to 18 V and delivers 20 W + 20 W continuous output power into an 8 Ω load at 18 V with 10% THD. The device features high efficiency of approximately 90%, four selectable fixed gain settings (20 dB, 26 dB, 30 dB, and 32 dB), and differential inputs to minimize common-mode noise. It includes protection against short circuits and thermal overload, along with standby and mute functions.
Feature Summary
- Dual BTL Class-D architecture designed for LCD TVs and monitors without requiring a separate heatsink due to high efficiency and EPU/EPD packages.
- Differential input configuration minimizes common-mode noise for improved signal integrity.
- Integrated protection mechanisms include short-circuit protection and thermal overload shutdown.
- Supports external synchronization and offers selectable fixed gain settings via hardware pins.
Applications
- LCD televisions
- Computer monitors
- Audio systems requiring high-efficiency amplification
Procurement Notes
Verify the specific ordering code TDA7491HVU13TR corresponds to the PowerSSO-36 EPU package variant. Confirm that the exposed pad up orientation matches the target PCB footprint design. Ensure compatibility with the required gain setting resistors or logic levels for the selected application environment.
Selection Notes
Select this component when a dual-channel solution is needed for display audio applications. The EPU package variant is suitable for designs where thermal dissipation through the top surface is preferred or required by the mechanical layout. Verify that the single-supply voltage range meets the system power constraints.
Part Context
This part belongs to the TDA7491 family of audio amplifiers. It is pin-to-pin compatible with the TDA7491P and TDA7491LP variants, which differ primarily in package type (EPD vs. EPU) and potentially output power ratings under different load conditions. The family is optimized for cost-effective, high-efficiency audio solutions in consumer electronics.
Replacement Considerations
TDA7491HV13TR (EPD package)
FAQ
What is the difference between TDA7491HVU13TR and TDA7491HV13TR?
The primary difference is the package orientation. TDA7491HVU13TR uses the PowerSSO-36 Exposed Pad Up (EPU) package, while TDA7491HV13TR uses the Exposed Pad Down (EPD) package. They are pin-to-pin compatible.
Does the TDA7491HVU13TR require an external LC filter?
The datasheet indicates filterless operation is possible, but characterization curves show recommended LC filter components for 4 Ω, 6 Ω, and 8 Ω loads to optimize performance.
