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Product Detailed Parameters
- Description：IC AMP CLSS AB STER 160MW 16SOIC
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Type：Class AB
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：160mW x 2 @ 16Ohm
- Voltage - Supply：2.7V ~ 5.5V
- Features：Depop, Shutdown, Thermal Protection
- Mounting Type：Surface Mount
- Supplier Device Package：16-SOIC
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The AA4003MTR-E1 is a Class AB stereo audio power amplifier manufactured by Diodes Incorporated. It delivers 2.0W per channel into 4Ω loads in BTL mode with THD+N less than 1%, or 160mW per channel into 16Ω loads in SE mode. The device operates on a supply voltage range of 2.7V to 5.5V and features external feedback loops for flexible gain setup. It includes optimized click/pop noise suppression, thermal shutdown protection, and low power consumption in shutdown mode (0.7µA typical). Available in SOIC-16 and TSSOP-20(EDP) packages.
Feature Summary
- Supports switchable Single-Ended (SE) and Bridged-Tied-Load (BTL) output configurations via the HP_SENSE pin.
- Integrates optimized circuits to suppress click and pop noise during power transitions.
- Includes thermal shutdown protection to limit total power dissipation when junction temperature exceeds limits.
Applications
- Portable DVD Players
- Portable Media Players
- LCD Monitors
- Digital Photo Frames
Procurement Notes
Verify the specific package type required for the design, as the AA4003 is available in both SOIC-16 and TSSOP-20(EDP) variants. Confirm that the ordering suffix matches the desired packing method, such as Tape & Reel for surface mount assembly. Ensure compliance with RoHS standards if lead-free components are mandated for the production environment.
Selection Notes
Select this component for portable applications requiring high efficiency and low quiescent current. Consider the BTL configuration for higher power delivery to main speakers and SE mode for headphone driving. Evaluate thermal management requirements, particularly for BTL operation at lower impedances, as heat dissipation is critical for maintaining performance within safe operating temperatures.
Part Context
The AA4003 belongs to Diodes Incorporated's portfolio of analog audio amplifiers designed for consumer electronics. It is part of a series of Class AB amplifiers optimized for battery-powered devices, offering a balance between audio fidelity and power efficiency. The device integrates multiple protection features to ensure reliability in compact form factors common in modern portable media players.
Replacement Considerations
Public confirmed substitute part numbers: None identified in source material.
FAQ
How is the output mode switched between SE and BTL?
The mode is determined by the logic level on the HP_SENSE pin. A low level sets the chip to BTL mode, while a high level sets it to SE mode.
What is the purpose of the BYPASS pin?
The BYPASS pin connects to an internal reference voltage. Connecting a capacitor here filters internal noise, reduces harmonic distortion, and improves power supply rejection ratio.
