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Product Detailed Parameters
- Description：IC AMP D/AB STEREO 5W 16SOP
- 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-SOP
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The PAM8406DR is a stereo audio amplifier manufactured by Diodes Incorporated, housed in a 16-pin SOP package. It operates on a single supply voltage ranging from 2.5V to 5.5V and delivers up to 5W of output power at 10% THD+N with a 2Ω load under Class-D mode. The device features selectable Class-D or Class-AB operation via the MODE pin, achieving efficiencies up to 90%. Key electrical parameters include a typical quiescent current of 10mA, a signal-to-noise ratio of 90dB, and a closed-loop gain of 24dB.
Feature Summary
- Features an alternative output architecture allowing selection between Class-D and Class-AB modes for optimized efficiency and electromagnetic interference compatibility.
- Utilizes a filterless fully differential output design that directly drives speakers without requiring low-pass filters or DC blocking capacitors.
- Incorporates comprehensive fault protection mechanisms including 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 ordering suffix 'DR' corresponds to the SOP-16 tape and reel packaging configuration. Confirm compliance requirements such as RoHS 3 and halogen-free status against project specifications. Ensure the selected component matches the active status indicated in official documentation before finalizing procurement plans.
Selection Notes
Select this component when designing systems requiring high-efficiency audio amplification within a limited power budget. The dual-mode capability allows designers to balance performance metrics against electromagnetic interference constraints. Verify that the external component count aligns with space-saving objectives enabled by the filterless architecture.
Part Context
This part belongs to the PAM8406 series of alternative audio amplifiers produced by Diodes Incorporated. The series provides flexible output configurations suitable for portable and battery-powered consumer electronics. The DR suffix specifically denotes the standard SOP-16 surface mount package variant available in tape and reel format.
Replacement Considerations
The PAM8406ER is listed as Not Recommended for New Design (NRND), with the PAM8406DR specified as the direct alternative part number.
FAQ
How is the operating mode selected between Class-D and Class-AB?
The MODE pin determines the output stage configuration. A logic high selects Class-D mode, while a logic low selects Class-AB mode. This pin must not be left floating.
What are the conditions for the short-circuit protection recovery?
The device includes short-circuit protection that immediately disables outputs upon detection. Recovery is automatic once the short circuit condition is removed, without requiring external intervention.
