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Product Detailed Parameters
- Description：IC AMP CLSS AB STER 2.7W 20TSSOP
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Type：Class AB
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：2.7W x 2 @ 3Ohm
- Voltage - Supply：4.5V ~ 5.5V
- Features：Depop, Shutdown, Thermal Protection
- Mounting Type：Surface Mount
- Supplier Device Package：20-TSSOP-EP
- Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The AA4005GTR-E1 is a Class AB stereo audio power amplifier designed for portable applications. It delivers up to 2.7W into a 3Ω load at 5.0V with THD+N under 10%. The device operates on a supply voltage range of 4.5V to 5.5V and features four selectable internal gain settings (6dB, 10dB, 15.6dB, 21.6dB) configured via GAIN0 and GAIN1 pins. It supports both stereo full differential and single-ended inputs. Key electrical characteristics include a typical shutdown current of 150µA and thermal shutdown protection.
Feature Summary
- Supports stereo full differential or single-ended audio input configurations
- Features four selectable internal fixed gain setups controlled by logic pins
- Includes excellent click/pop noise suppression capabilities
- Provides low power consumption in shutdown mode
Applications
- Notebook PC
- Portable media player
Procurement Notes
Verify the component manufacturer as BCD Semiconductor Manufacturing Limited, not Diodes Incorporated. Confirm the package type is TSSOP-20(EDP). Ensure the suffix E1 indicates lead-free compliance. Check datasheet revision status as it is marked preliminary.
Selection Notes
Select this amplifier for battery-powered devices requiring high efficiency and low quiescent current. Verify that the application requires a 4.5V to 5.5V supply range. Ensure the design accommodates the specific gain configuration requirements using the GAIN0 and GAIN1 pins.
Part Context
This component belongs to the AA4005 series of stereo audio amplifiers. It is manufactured by BCD Semiconductor Manufacturing Limited. The part number suffix GTR indicates tape and reel packaging, while E1 denotes lead-free construction.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation.
FAQ
What is the maximum output power?
The maximum output power is 2.7W into a 3Ω speaker at 5.0V with THD+N less than 10%.
How is the gain configured?
Gain is set internally using the GAIN0 and GAIN1 pins, offering four options: 6dB, 10dB, 15.6dB, and 21.6dB.
