Diodes Incorporated PAM8406DR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| Mfr | Diodes Incorporated |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Type | Class D, Class AB |
| Output Type | 2-Channel (Stereo) |
| Supplier Device Package | 16-SOP |
| Voltage - Supply | 2.5V ~ 5.5V |
| Max Output Power x Channels @ Load | 5W x 2 @ 2Ohm |
| Features | Depop, Short-Circuit and Thermal Protection |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | PAM8406 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.33.0001 |
PAM8406DR 3W stereo audio amplifier IC, Filterless digital audio amplifier
The PAM8406DR is a high-efficiency, 3W stereo Class-D audio amplifier from Diodes Incorporated, designed for portable and battery-powered audio applications. Operating on a 2.5V to 5.5V supply voltage, this amplifier is ideal for smartphones, Bluetooth speakers, gaming headsets, and other compact audio devices. It features a filterless PWM modulation design, eliminating the need for external LC filters and reducing PCB space and component costs. With a 90% power efficiency, the PAM8406DR minimizes heat generation and extends battery life, making it a preferred choice for energy-efficient audio solutions.
The PAM8406DR supports stereo (dual-channel) and mono (bridged) output modes, providing flexibility for different speaker configurations. It includes built-in short-circuit protection, thermal shutdown, and under-voltage lockout (UVLO), ensuring reliable operation under adverse conditions. The amplifier delivers low distortion (THD+N < 1%) and a signal-to-noise ratio (SNR) of >90dB, ensuring high-fidelity audio playback even at higher volumes. Its fast start-up time (<10ms) and low quiescent current (<4mA) enhance performance in power-sensitive applications.
Packaged in a small 8-pin SOIC (DR) form factor, the PAM8406DR is optimized for space-constrained designs while maintaining excellent thermal performance. It supports differential or single-ended audio inputs, making it compatible with various digital and analog audio sources. The device also features pop-and-click suppression, reducing unwanted noise during power-on/off transitions. Engineers can easily integrate this amplifier into their designs with minimal external components, thanks to its simple application circuit and robust datasheet support.
PAM8406DR Class-D amplifier Alternative Models
● PAM8403ER – 2.5W stereo Class-D amp, similar voltage range but lower output power.
● PAM8610M – 10W dual-channel Class-D amp, higher power for larger speakers (4.5V–5.5V).
● TPA2016D2 (Texas Instruments) – 3W stereo amp with I²C volume control, higher integration.
● MAX98357A (Maxim Integrated) – 3.2W mono Class-D amp with I2S input, digital audio support.
