Overview
The TDA7266D is a dual bridge amplifier designed and manufactured by STMicroelectronics. This amplifier is specifically tailored for a variety of applications, including LCD TVs/monitors, PC motherboards, TVs, and portable audio devices. It is known for its wide supply voltage range, minimal external component requirements, and integrated protection features.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 3.5 - 12 | V |
| Output Power (per channel) | 5W @ THD = 10%, R = 8Ω, Vcc = 9.5V | W |
| Total Quiescent Current | 50 - 65 | mA |
| Output Offset Voltage | 120 | mV |
| Total Harmonic Distortion | 0.05 - 0.2 % @ PO = 1W, f = 100Hz to 15kHz | % |
| Supply Voltage Rejection | 40 - 56 | dB |
| Crosstalk | 46 - 60 | dB |
| Mute Attenuation | 60 - 80 | dB |
| Thermal Threshold | 150 | °C |
| Operating Temperature | 0 to 70 | °C |
| Storage and Junction Temperature | -40 to 150 | °C |
| Thermal Resistance Junction-case | 2.1 | °C/W |
| Thermal Resistance Junction-ambient | 15 | °C/W |
Key Features
- Wide supply voltage range (3.5V to 12V)
- Minimum external components required – no SVR capacitor, no bootstrap, no Boucherot cells, and internally fixed gain
- Stand-by and mute functions
- Short circuit protection
- Thermal overload protection
- High-quality audio output with low total harmonic distortion
- Single supply operation
Applications
- LCD TVs and monitors
- PC motherboards
- TVs
- Portable audio devices such as MP3 players, voice messaging systems, and warning signals
Q & A
- What is the supply voltage range of the TDA7266D?
The supply voltage range of the TDA7266D is from 3.5V to 12V.
- What is the output power of the TDA7266D per channel?
The output power of the TDA7266D is approximately 5W per channel at THD = 10%, R = 8Ω, and Vcc = 9.5V.
- Does the TDA7266D require external components like SVR capacitors or bootstrap capacitors?
No, the TDA7266D does not require external components like SVR capacitors, bootstrap capacitors, or Boucherot cells. It also has an internally fixed gain.
- What protection features does the TDA7266D have?
The TDA7266D includes stand-by and mute functions, short circuit protection, and thermal overload protection).
- What are the typical applications of the TDA7266D?
The TDA7266D is typically used in LCD TVs/monitors, PC motherboards, TVs, and portable audio devices).
- What is the thermal threshold of the TDA7266D?
The thermal threshold of the TDA7266D is 150°C).
- What is the operating temperature range of the TDA7266D?
The operating temperature range of the TDA7266D is from 0°C to 70°C).
- Does the TDA7266D support single supply operation?
- What is the mute attenuation of the TDA7266D?
The mute attenuation of the TDA7266D is between 60 dB and 80 dB).
- What is the package type of the TDA7266D?
The TDA7266D comes in a PowerSO-20 package).
