Overview
The TDA7376PDTR is a dual bridge audio amplifier produced by STMicroelectronics, designed specifically for car radio applications. This component is part of the TDA7376PD series and is packaged in the PowerSO36 format. It features a fully complementary PNP/NPN output stage configuration, which enables a rail-to-rail voltage swing without the need for bootstrap capacitors. The amplifier is known for its high output power capability, differential inputs, and minimal external component requirements, making it suitable for both car radio and car booster applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage (VOP) | 18 | V |
| DC Supply Voltage (Vs) | 28 | V |
| Peak Supply Voltage (Vpeak) | 50 | V (t = 50 ms) |
| Output Peak Current (not repetitive) | 8 | A (t = 100 μs) |
| Output Peak Current (repetitive) | 6 | A (f > 10 Hz) |
| Power Dissipation (Ptot) | 36 | W (Tcase = 85°C) |
| Storage and Junction Temperature (Tstg, Tj) | -40 to 150 | °C |
| Thermal Resistance Junction to Case (Rth j-case) | 2 | °C/W |
| Supply Voltage Range (VS) | 8 to 18 | V |
| Total Quiescent Drain Current (Id) | 200 | mA |
| Output Offset Voltage (VOS) | 120 | mV |
| Output Power (PO) @ THD = 10%, RL = 4 Ω | 25 to 35 | W |
| Output Power (PO) @ THD = 10%, RL = 2 Ω | 23 to 33 | W |
| EIAJ Output Power (PO EIAJ) @ VS = 13.7 V | 32 to 35 | W |
| Distortion (THD) @ PO = 0.5 to 10 W | 0.03 to 0.08 | % |
Key Features
- High output power capability: up to 2 x 40 W max./4 Ω and 2 x 35 W/4 Ω EIAJ.
- 2 Ω driving capability.
- Differential inputs accepting single-ended or differential input signals.
- Internally fixed gain of 26 dB.
- Mute function (CMOS compatible) with no audible pop during mute and standby operations.
- Standby function that de-biases the amplifiers.
- Programmable clipping distortion detector with adjustable threshold.
- Comprehensive protection features including short circuit, overrating chip temperature, load dump voltage, fortuitous open ground, loudspeaker DC current, and ESD protection.
Applications
The TDA7376PDTR is primarily designed for car radio applications, but it is also suitable for car booster applications due to its high noise immunity and robust protection features.
Q & A
- What is the maximum output power of the TDA7376PDTR?
The maximum output power is up to 2 x 40 W max./4 Ω and 2 x 35 W/4 Ω EIAJ.
- What is the supply voltage range for the TDA7376PDTR?
The supply voltage range is from 8 to 18 V.
- Does the TDA7376PDTR have a mute function?
- What kind of protection features does the TDA7376PDTR have?
The device includes protections against short circuit, overrating chip temperature, load dump voltage, fortuitous open ground, loudspeaker DC current, and ESD.
- How does the distortion detection work in the TDA7376PDTR?
The distortion detection is done through a programmable clipping distortion detector circuitry that signals output stage saturation by providing a current sinking into an open collector output when the total harmonic distortion reaches the preset level.
- What is the thermal resistance junction to case for the TDA7376PDTR?
The thermal resistance junction to case is 2 °C/W.
- What is the storage and junction temperature range for the TDA7376PDTR?
The storage and junction temperature range is from -40 to 150 °C.
- Does the TDA7376PDTR have a standby function?
- What type of input does the TDA7376PDTR accept?
The device accepts both single-ended and differential input signals.
- What is the typical total quiescent drain current for the TDA7376PDTR?
The typical total quiescent drain current is up to 200 mA.
