Overview
The TDA1910 is a monolithic integrated circuit produced by STMicroelectronics, designed for use in high-fidelity audio power applications and high-quality TV sets. It is packaged in the MULTIWATT® package, which offers ease of assembly and simple heatsink implementation. The TDA1910 is capable of delivering up to 10W of output power at 24V with a 4Ω load, meeting the DIN 45500 standard with a distortion factor of 0.5%. It also features a muting facility, protection against chip overtemperature, very low noise, high supply voltage rejection, and low switch-on noise.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (Vs) | 30 | V |
| Output Peak Current (non-repetitive) | 3.5 | A |
| Output Peak Current (repetitive) | 3.0 | A |
| Input Voltage (Vi) | 0 to + Vs | V |
| Differential Input Voltage (Vi) | ± 7 | V |
| Muting Threshold Voltage (V11) | Vs | V |
| Power Dissipation at Tcase = 90°C (Ptot) | 20 | W |
| Storage and Junction Temperature (Tstg, Tj) | -40 to 150 | °C |
| Efficiency at Vs = 24V, f = 1 KHz, RL = 4Ω, Po = 12W | 62 to 65 | % |
| Small Signal Bandwidth at Vs = 24V, RL = 4Ω, Po = 1W | 10 to 120,000 Hz | Hz |
| Power Bandwidth at Vs = 24V, Po = 12W, RL = 4Ω, d ≤ 5% | 40 to 15,000 Hz | Hz |
| Voltage Gain (open loop) at f = 1 KHz | 75 dB | dB |
| Voltage Gain (closed loop) at Vs = 24V, f = 1 KHz, RL = 4Ω, Po = 1W | 29.5 to 30.5 dB | dB |
Key Features
- Muting facility to control output signal during switch-on, input stage commutations, and receiver tuning.
- Protection against chip overtemperature to ensure safe operation under overload or high ambient temperatures.
- Very low noise and high supply voltage rejection for high-quality audio output.
- Low switch-on noise to minimize transient effects.
- Ease of assembly and simple heatsink implementation due to the MULTIWATT® package.
- High reliability and space/cost-saving design.
Applications
The TDA1910 is suitable for various high-fidelity audio power applications, including:
- Hi-Fi audio systems.
- High-quality TV sets.
- Audio amplifiers requiring muting and thermal protection.
- Applications needing low noise and high supply voltage rejection.
- Custom audio circuits where variable impedance and frequency response adjustments are necessary.
Q & A
- What is the maximum output power of the TDA1910? The TDA1910 can deliver up to 10W of output power at 24V with a 4Ω load.
- What is the muting facility used for in the TDA1910? The muting facility is used to control the output signal during switch-on, input stage commutations, and receiver tuning to avoid preamplifier power-on transients.
- What type of package does the TDA1910 come in? The TDA1910 is packaged in the MULTIWATT® package.
- What are the key features of the TDA1910? Key features include muting facility, protection against chip overtemperature, very low noise, high supply voltage rejection, and low switch-on noise.
- What are the typical applications of the TDA1910? Typical applications include Hi-Fi audio systems, high-quality TV sets, and custom audio circuits requiring muting and thermal protection.
- What is the maximum supply voltage for the TDA1910? The maximum supply voltage for the TDA1910 is 30V.
- What is the power dissipation at Tcase = 90°C for the TDA1910? The power dissipation at Tcase = 90°C is 20W.
- What is the storage and junction temperature range for the TDA1910? The storage and junction temperature range is -40 to 150°C.
- How does the TDA1910 protect against overtemperature? The TDA1910 has a thermal limiting circuit that prevents the junction temperature from exceeding 150°C, even under overload or high ambient temperatures.
- What is the efficiency of the TDA1910 at typical operating conditions? The efficiency of the TDA1910 is between 62% and 65% at Vs = 24V, f = 1 KHz, RL = 4Ω, and Po = 12W.
