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Product Detailed Parameters
- Description：IC AMP CLSS AB STER 1.8W 24TSSOP
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Type：Class AB
- Output Type：Headphones, 2-Channel (Stereo)
- Max Output Power x Channels @ Load：1.8W x 1 @ 4Ohm; 2.3W x 2 @ 4Ohm
- Voltage - Supply：4.5V ~ 5.5V
- Features：Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
- Mounting Type：Surface Mount
- Supplier Device Package：24-TSSOP-EP
- Package / Case：24-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The AA4006GTR-E1 is a Class AB stereo audio power amplifier with an integrated headphone driver, manufactured by Diodes Incorporated. It delivers up to 2.7W into 3Ω speakers at 5.0V supply voltage with THD+N less than 10%. The device operates within a supply voltage range of 4.5V to 5.5V and features four selectable internal gain setups in BTL mode (6dB, 10dB, 15.6dB, 21.6dB) via GAIN0 and GAIN1 pins, while SE mode maintains a fixed 4.1dB gain. It includes a stereo 2:1 input multiplexer for line or headphone inputs, PC beep detection, low shutdown current (150µA typical), thermal shutdown protection, and click/pop noise suppression.
Feature Summary
- Stereo full differential or single-ended input support with a 2:1 input multiplexer
- Four selectable internal gain configurations in BTL mode controlled by logic pins
- Integrated PC beep input that overrides other audio signals when active
- Low power consumption in shutdown mode with excellent click and pop noise suppression
Applications
- Notebook PC audio systems
- Portable media players
- Headphone amplification circuits
Procurement Notes
Verify the component matches the TSSOP-24 (EDP) package and E1 lead-free suffix. Confirm RoHS compliance status through official documentation. Ensure the ordering part number corresponds exactly to the AA4006GTR-E1 designation to avoid functional mismatches related to packaging or material specifications.
Selection Notes
Select this amplifier for applications requiring high output power from a single 5V supply. Consider the available gain settings to match source signal levels. Evaluate thermal requirements based on load impedance and ambient temperature, as power dissipation increases significantly at lower impedances like 3Ω or 4Ω in BTL mode.
Part Context
This component belongs to the AA4006 series of stereo audio power amplifiers. It is designed specifically for portable electronics where space and power efficiency are critical. The device integrates multiple functions typically requiring separate components, simplifying the design for notebook PCs and media players.
Replacement Considerations
Check datasheets for pin compatibility and electrical characteristics before substituting. Verify if alternative packages or suffixes offer identical functionality. Ensure thermal performance meets system requirements under similar operating conditions.
FAQ
How does the HP_SENSE pin determine the operation mode?
Holding the HP_SENSE pin low sets the chip to BTL mode, enabling both amplifier units. Applying a high level switches it to SE mode, turning off one amplifier unit and disabling the speaker load.
What happens when a beep signal is applied to the BEEP_IN pin?
The amplifier automatically forces itself into BTL mode with a fixed gain of 0.3V/V, deselecting LINE_IN and HP_IN. All other control pins are ignored until the beep signal is removed.
