Overview
The STA51813TR, produced by STMicroelectronics, is a monolithic quad power half-bridge stage designed using multipower BCD technology. This device is highly versatile and can be configured as a dual bridge or a single bridge with double current capacity by adjusting the CONFIG pin. It is particularly suited for high-efficiency audio applications, such as stereo all-digital amplifiers, capable of delivering significant output power with low distortion.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| DC Supply Voltage (VCC) | 10 | 36.0 | 40 | V |
| Input Logic Reference (VL) | 2.7 | 3.3 | 5.0 | V |
| Ambient Temperature (Tamb) | 0 | - | 70 | °C |
| Output Current per Channel | - | - | 3.5 | A |
| RdsON (Complementary DMOS Output Stage) | - | - | 200 mΩ | - |
| Thermal Warning Temperature (Twarn) | - | - | 130 °C | - |
| Thermal Shut-Down Junction Temperature (TjSD) | - | - | 150 °C | - |
| Package Type | - | - | PowerSSO36 (slug up) | - |
Key Features
- Multipower BCD technology for high efficiency and reliability.
- Minimum input-output pulse width distortion for clear audio output.
- CMOS-compatible logic inputs for easy integration with digital systems.
- Thermal protection and thermal warning output to prevent overheating.
- Undervoltage protection and short-circuit protection for robust operation.
- High-resolution audio capability with advanced diagnostics.
- High PWM switching frequency for high-quality audio output.
- Configurable as dual bridge or single bridge with double current capacity.
Applications
The STA51813TR is primarily designed for high-efficiency audio applications, including:
- Stereo all-digital amplifiers capable of delivering up to 24 W x 4 channels or 50 W + 50 W in BTL configuration.
- High-power audio systems requiring low distortion and high efficiency.
- Professional audio equipment such as amplifiers and sound systems.
- Automotive audio systems where high reliability and efficiency are crucial.
Q & A
- What is the maximum DC supply voltage for the STA51813TR?
The maximum DC supply voltage is 40 V.
- What is the typical output current per channel for the STA51813TR?
The typical output current per channel is 3.5 A.
- What type of technology is used in the STA51813TR?
The STA51813TR uses multipower BCD technology.
- Does the STA51813TR have thermal protection features?
- Can the STA51813TR be configured in different modes?
- What is the package type of the STA51813TR?
The package type is PowerSSO36 (slug up).
- What are the key applications of the STA51813TR?
The key applications include stereo all-digital amplifiers, high-power audio systems, professional audio equipment, and automotive audio systems.
- Does the STA51813TR support both DDX and binary modes?
- What is the thermal shut-down junction temperature for the STA51813TR?
The thermal shut-down junction temperature is 150 °C.
- How does the STA51813TR handle fault conditions?
When a fault condition is detected, the device disables the output power MOSFETs and signals the fault through the FAULT pin. It can be reset using the TRI-STATE pin.
