TDA2822M Introduction
The TDA2822M is a dual low-power audio amplifier integrated circuit (IC) commonly used in portable audio devices and low-power amplifier applications. It can operate with a low voltage supply, typically between 3V and 15V. The TDA2822M can drive both stereo (dual-channel) and bridge-tied load (BTL) configurations, allowing it to deliver output power up to 1W per channel in BTL mode.
TDA2822M involves amplifying audio signals by increasing their voltage and power levels to drive speakers or headphones. It achieves this through two internal amplifiers that can operate independently or be bridged together for higher output power.
TDA2822M Pinout
OUT(1): Output for channel 1.
VCC: Supply voltage (3V-15V).
OUT(2): Output for channel 2.
GND: Ground connection.
IN-(2): Inverting input for channel 2.
IN+(2): Non-inverting input for channel 2.
IN+(1): Non-inverting input for channel 1.
IN-(1): Inverting input for channel 1.
TDA2822M Symbol
TDA2822M Footprint
TDA2822M 3D Model
TDA2822M Schematic Diagram
TDA2822M Test Circuit
TDA2822M Specification
| Parameter | Value |
| Supply Voltage (VCC) | 3V to 15V |
| Output Power | 1W per channel (typical, with 6V VCC) |
| Output Type | 1-Channel (Mono) or 2-Channel (Stereo) |
| Max Output Power x Channels @ Load | 2W x 1 @ 16Ohm; 1W x 2 @ 8Ohm |
| Voltage - Supply | 1.8V ~ 15V |
| Quiescent Current | 4 mA |
| Input Resistance | 100 kΩ |
| Gain | 39 dB |
| Total Harmonic Distortion (THD) | 0.2% (at 1 kHz, 100 mW output) |
| Frequency Response | 20 Hz to 20 kHz |
| Channel Separation | 50 dB |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Package Type | 8-DIP |
TDA2822M Features
Dual Amplifier
Supply Voltage down to 1.8V
Low Crossover Distorsion
Low Quiescent Current
Bridge or Stereo Configuration
High Channel Separation
Fixed Gain
Wide Frequency Response
Low Total Harmonic Distortion (THD)
TDA2822M Applications
Portable Audio Devices
Headphone Amplifiers
Miniature Audio Amplifiers
Educational Kits and DIY Projects
TV and Monitor Sound Systems
Alarm and Notification Systems
TDA2822M Dimensions
TDA2822M Package
The TDA2822M is packaged in an 8-pin Dual In-line Package (8-DIP). This package type is widely used in various electronic applications due to its ease of use and compatibility with standard PCB designs. The 8-DIP package features a rectangular body with two parallel rows of four pins each, making it easy to mount on a PCB or use with breadboards for prototyping.
FAQs
How do you connect the TDA2822M to a circuit?
The TDA2822M is typically used in a bridge configuration or stereo configuration. The pinout includes two outputs, two inputs, a supply voltage pin, a ground pin, and two feedback connections.
Does the TDA2822M have built-in protection features?
Yes, the TDA2822M includes short-circuit protection and thermal shutdown to prevent damage under abnormal operating conditions.
How does the thermal shutdown feature of the TDA2822M work?
The thermal shutdown feature automatically disables the output stages if the internal temperature exceeds a certain threshold, protecting the IC from overheating. Once the temperature drops to a safe level, the IC resumes normal operation.
