ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC AMP CLASS D STEREO 3W 20QFN
- 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：3W x 2 @ 4Ohm
- Voltage - Supply：2.5V ~ 5.5V
- Features：Depop, Short-Circuit and Thermal Protection
- Mounting Type：Surface Mount
- Supplier Device Package：20-QFN (4x4)
- Package / Case：20-VFQFN Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
Download product information
Overview
The PAM8404KGR is a 3W/channel filterless stereo Class-D audio amplifier manufactured by Diodes Incorporated. It operates on a single supply voltage ranging from 2.5V to 5.5V and delivers up to 3W of output power at 10% THD with a 4Ω load and 5V supply. The device features an efficiency of up to 89%, a -63dB PSRR, and a noise floor as low as 43µV. It is housed in a U-QFN4040-20 package (4mm x 4mm) and includes short circuit protection and thermal shutdown.
Feature Summary
- Filterless design requiring few external components
- Independent gain selection via G0 and G1 pins
- Integrated short circuit and thermal protection
Applications
- Cellular handsets and speaker phones
- Portable speakers and DVD players
- Notebook computers and LCD monitors
Procurement Notes
Verify the specific package type matches the application requirements. Confirm that the operating voltage range aligns with the system power supply. Ensure proper PCB layout for ground planes and decoupling capacitors to maintain performance standards.
Selection Notes
Select this component for applications requiring high efficiency and minimal external parts count. Consider the available gain settings and the specific package dimensions when designing the PCB layout. Verify compatibility with the intended audio source impedance and load characteristics.
Part Context
This part belongs to the PAM8404 series of Class-D audio amplifiers. It is designed for portable electronic devices where space and power efficiency are critical constraints. The KGR suffix indicates the U-QFN4040-20 package configuration.
Replacement Considerations
Check datasheets for alternative models within the same family or from other manufacturers. Ensure pinout compatibility and electrical specifications match the original design requirements before substitution.
FAQ
How is the gain of the PAM8404KGR configured?
The gain is set using the G0 and G1 pins, allowing for selectable gains of 6, 12, 18, or 24 dB.
What protection features are included in the PAM8404KGR?
The device includes short circuit protection and thermal shutdown to prevent damage under fault conditions.
