Overview
The OPA541APG3 is a high-power monolithic operational amplifier produced by Texas Instruments. This device is designed for high-current applications and is capable of operating from power supplies up to ±40 V, delivering continuous output currents up to 5 A. The OPA541APG3 features a FET input stage, which reduces circuit loading and input bias currents, and a class A/B high current output stage with temperature-compensated biasing to minimize crossover distortion. The amplifier also includes user-settable current limit circuitry for protection against fault conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Power Supply Voltage | ±4 V to ±40 V |
| Continuous Output Current | Up to 5 A |
| Peak Output Current | Up to 10 A |
| Quiescent Current | 20-25 mA |
| Temperature Range | –40°C to 125°C |
| Package Types | TO-3, Power Plastic Packages |
| Input Stage | FET Input |
| Output Stage | Class A/B High Current |
| Current Limit | User-Programmable with External Resistor |
Key Features
- High power operation from ±4 V to ±40 V power supplies.
- Continuous output currents up to 5 A and peak output currents up to 10 A.
- FET input stage reducing circuit loading and input bias currents.
- Class A/B high current output stage with temperature-compensated biasing to reduce crossover distortion.
- User-settable current limit circuitry for amplifier and circuit protection.
- Industry-standard pinout and available in TO-3 and low-cost power plastic packages.
Applications
The OPA541APG3 is suitable for various high-current applications, including motor drivers, power amplifiers, and other industrial control systems. It is particularly useful in scenarios where high power and precision are required, such as in hybrid power amplifier replacements and in systems needing robust and reliable operational amplifiers.
Q & A
- What is the maximum power supply voltage for the OPA541APG3?
The OPA541APG3 can operate from power supplies up to ±40 V. - What is the maximum continuous output current of the OPA541APG3?
The maximum continuous output current is up to 5 A. - What type of input stage does the OPA541APG3 use?
The OPA541APG3 uses a FET input stage. - How is the current limit set in the OPA541APG3?
The current limit is set using a single external resistor (RCL). - What are the typical package types for the OPA541APG3?
The OPA541APG3 is available in TO-3 and low-cost power plastic packages. - What is the temperature range for the OPA541APG3?
The device operates from –40°C to 125°C. - What is the quiescent current of the OPA541APG3?
The quiescent current is typically between 20-25 mA. - Is the OPA541APG3 suitable for motor driver applications?
Yes, the OPA541APG3 is suitable for motor driver applications due to its high power and current capabilities. - Does the OPA541APG3 have built-in protection against fault conditions?
Yes, the OPA541APG3 includes user-settable current limit circuitry for protection against fault conditions. - What is the phase margin of the OPA541APG3?
The phase margin is specified over the temperature range and load conditions, typically around 40° for RL = 8 Ω.
