Overview
The TEA2025B is a monolithic integrated circuit designed by STMicroelectronics, intended for use as a dual or bridge power audio amplifier. It is housed in a 16-pin plastic dual in-line package (DIP) and is originally designed for portable cassette players and radios. However, its versatility allows it to be used in various applications, including making stereo audio amplifiers for devices like iPods or MP3 players.
Key Specifications
| Parameter | Value |
|---|---|
| Amplifier Class | AB |
| Load Impedance | 4 Ω |
| Number of Channels | 2 |
| Number of Pins | 16 |
| Output Power | 2.3 W (VS = 9 V, RL = 4 Ω) |
| Package / Case | DIP16, SO20 |
| Supply Voltage Range | 3 V to 15 V |
| RoHS Compliance | Yes |
| SVHC (Substances of Very High Concern) | No |
Key Features
- Dual or bridge connection modes
- Few external components required
- Supply voltage range from 3 V to 15 V
- High channel separation
- Very low switch-on/off noise
- Maximum gain of 45 dB with adjustable external resistor
- Soft clipping
- Thermal protection
Applications
The TEA2025B is primarily designed for use in portable audio devices such as cassette players and radios. However, it can also be used to make stereo audio amplifiers for other portable devices like iPods, MP3 players, and small speakers.
Q & A
- What is the TEA2025B used for?
The TEA2025B is used as a dual or bridge power audio amplifier, originally designed for portable cassette players and radios, but also suitable for other portable audio devices.
- What is the supply voltage range for the TEA2025B?
The supply voltage range for the TEA2025B is from 3 V to 15 V.
- What is the maximum output power of the TEA2025B?
The maximum output power of the TEA2025B is 2.3 W when the supply voltage is 9 V and the load impedance is 4 Ω.
- Does the TEA2025B have thermal protection?
Yes, the TEA2025B has built-in thermal protection.
- Can the TEA2025B be used in bridge mode?
Yes, the TEA2025B can be used in both dual and bridge connection modes.
- What is the maximum gain of the TEA2025B?
The maximum gain of the TEA2025B is 45 dB, which can be adjusted using an external resistor.
- Is the TEA2025B RoHS compliant?
Yes, the TEA2025B is RoHS compliant.
- What are some equivalent ICs to the TEA2025B?
Some equivalent ICs to the TEA2025B include the LA4192, KA2206B, TDA2030, and TDA2050.
- How does the TEA2025B compare to the TDA2030 in terms of sound quality?
The TDA2030 generally offers better sound quality and higher power output compared to the TEA2025B, making it more suitable for HiFi applications.
- What is the package type of the TEA2025B?
The TEA2025B is available in DIP16 and SO20 packages.
