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Product Detailed Parameters
- Description：IC AMP D/AB STEREO 5W 16SO
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Class D, Class AB
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：5W x 2 @ 2Ohm
- Voltage - Supply：2.5V ~ 5.5V
- Features：Depop, Short-Circuit and Thermal Protection
- Mounting Type：Surface Mount
- Supplier Device Package：16-SO-EP
- Package / Case：16-SOIC (0.154", 3.90mm Width) Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The PAM8406ER is a stereo audio amplifier manufactured by Diodes Incorporated, housed in a 16-SO-EP package. It operates on a supply voltage range of 2.5V to 5.5V and supports an operating temperature from -40°C to +85°C. The device provides up to 5W output power at 10% THD+N with a 2Ω load under Class-D mode. It features selectable Class-D or Class-AB outputs, low quiescent current, and high efficiency reaching 90%.
Feature Summary
- Selectable Class-D or Class-AB output modes for optimized efficiency and EMI compatibility.
- Filterless architecture allowing direct speaker drive without external low-pass filters or DC blocking capacitors.
- Integrated short circuit protection with auto-recovery and thermal shutdown functionality.
Applications
- LCD TVs
- Multimedia Speakers
- AM/FM Systems
- Digital Audio Broadcasts (DABs)
Procurement Notes
Verify the specific SOP-16(EP) package designation when sourcing the PAM8406ER variant. Confirm RoHS3 compliance status as per the manufacturer's latest documentation. Ensure proper decoupling capacitor placement near VDD terminals to maintain specified PSRR and THD performance levels during implementation.
Selection Notes
Select this component for portable applications requiring high efficiency and extended battery life. Choose Class-D mode for maximum power output and filterless design benefits. Opt for Class-AB mode if lower electromagnetic interference is prioritized over peak efficiency. Ensure input signal levels remain within limits to prevent output clipping.
Part Context
The PAM8406 series includes variants such as PAM8406DR and PAM8406ER. The ER suffix specifically denotes the SOP-16(EP) package type, which includes an exposed pad for improved thermal dissipation compared to standard SOP packages. Both variants share identical electrical characteristics and functional capabilities.
Replacement Considerations
PAM8406DR serves as a verified alternative part number for the PAM8406ER series.
FAQ
How is the output mode selected between Class-D and Class-AB?
The MODE pin determines the operation. A logic high selects Class-D mode, while a logic low selects Class-AB mode. The pin must not be left floating.
What happens if the junction temperature exceeds 150°C?
Thermal protection disables the outputs to prevent damage. The device automatically recovers once the die temperature drops by approximately 30°C below the trip point.
