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Product Detailed Parameters
- Description：IC AMP CLASS D STER 3.1W 24SSOP
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Class D
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：3.1W x 2 @ 4Ohm
- Voltage - Supply：2.5V ~ 5.5V
- Features：Depop, Short-Circuit and Thermal Protection
- Mounting Type：Surface Mount
- Supplier Device Package：24-SSOP
- Package / Case：24-SSOP (0.154", 3.90mm Width)
- Operating Temperature：-20°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The PAM8007NHR is a filterless Class-D stereo audio amplifier with an integrated headphone output, manufactured by Diodes Incorporated. It delivers 3W output power at 10% THD+N into a 4Ω load with a 5V supply. The device operates on a supply voltage range of 2.5V to 5.5V and features 64-step DC volume control for both speaker and headphone channels. It achieves up to 92% efficiency and includes short-circuit protection and thermal shutdown.
Feature Summary
- Filterless architecture eliminates the need for low-pass output filters, reducing system cost and PCB area.
- Integrated 64-step DC volume control allows precise gain adjustment for both Class-D speakers and headphone outputs.
- Includes dedicated headphone amplifier stage with separate inputs and non-inverting outputs.
- Features comprehensive protection mechanisms including short-circuit protection and thermal shutdown with auto-recovery.
Applications
- LCD monitors and TV projectors
- Notebook computers
- Portable speakers
- Portable DVD players and game machines
- VoIP and speaker phones
Procurement Notes
Verify component authenticity through authorized Diodes Incorporated distributors or direct manufacturer channels. Confirm the SSOP-24 package marking matches official datasheet specifications. Ensure the ordering suffix 'NHR' corresponds to the correct tape and reel quantity. Validate RoHS compliance status prior to integration into final assemblies.
Selection Notes
Select this component for designs requiring high-efficiency stereo amplification without external output filtering. The integrated headphone driver simplifies dual-output architectures. Consider the 64-step DC volume control for systems lacking digital interfaces. Verify that the 2.5V to 5.5V supply range aligns with the target battery or rail voltage constraints.
Part Context
The PAM8007 belongs to Diodes Incorporated's portfolio of Class-D audio amplifiers designed for portable electronics. It serves as a high-efficiency alternative to Class-AB amplifiers, extending battery life in mobile devices. The NHR suffix specifically denotes the SSOP-24 package variant supplied in tape and reel format for automated surface-mount assembly.
Replacement Considerations
The datasheet explicitly states that the PAM8007 is not recommended for new designs and directs engineers to use the PAM8019E as the designated replacement part.
FAQ
How does the Line/Ear pin function?
The Line/Ear pin controls the switching between speaker and headphone outputs. A logic low activates the speaker output, while a logic high activates the earphone output.
What is the purpose of the Analog Reference Bypass Capacitor?
The bypass capacitor determines the startup rate during power-on or recovery from shutdown. It also reduces noise coupling from the internal analog reference, improving PSRR and THD+N performance.
