OPA549
- HIGH OUTPUT CURRENT:
8A Continuous
10A Peak - WIDE POWER-SUPPLY RANGE:
Single Supply: +8V to +60V
Dual Supply: ±4V to ±30V - WIDE OUTPUT VOLTAGE SWING
- FULLY PROTECTED:
Thermal Shutdown
Adjustable Current Limit - OUTPUT DISABLE CONTROL
- THERMAL SHUTDOWN INDICATOR
- HIGH SLEW RATE: 9V/µs
- CONTROL REFERENCE PIN
- 11-LEAD POWER PACKAGE
- APPLICATIONS
- VALVE, ACTUATOR DRIVER
- SYNCHRO, SERVO DRIVER
- POWER SUPPLIES
- TEST EQUIPMENT
- TRANSDUCER EXCITATION
- AUDIO POWER AMPLIFIER
All trademarks are the property of their respective owners.
The OPA549 is a low-cost, high-voltage/high-current operational amplifier ideal for driving a wide variety of loads. This laser-trimmed monolithic integrated circuit provides excellent low-level signal accuracy and high output voltage and current.
The OPA549 operates from either single or dual supplies for design flexibility. The input common-mode range extends below the negative supply.
The OPA549 is internally protected against over-temperature conditions and current overloads. In addition, the OPA549 provides an accurate, user-selected current limit. Unlike other designs which use a "power" resistor in series with the output current path, the OPA549 senses the load indirectly. This allows the current limit to be adjusted from 0A to 10A with a resistor/potentiometer, or controlled digitally with a voltage-out or current-out Digital-to-Analog Converter (DAC).
The Enable/Status (E/S) pin provides two functions. It can be monitored to determine if the device is in thermal shutdown, and it can be forced low to disable the output stage and effectively disconnect the load.
The OPA549 is available in an 11-lead power package. Its copper tab allows easy mounting to a heat sink for excellent thermal performance. Operation is specified over the extended industrial temperature range, –40°C to +85°C.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | High-Voltage, High-Current Operational Amplifier 数据表 (Rev. E) | 2005-10-7 | |||
| 电子书 | The Signal e-book: 有关运算放大器设计主题的博客文章汇编 | PDF | HTML | 英语版 | PDF | HTML | 2018-1-31 | |
| 应用手册 | MTTF, Failrate, Reliability, and Life Testing | 2000-10-4 | ||||
| 应用手册 | DC MOTOR SPEED CONTROLLER: Control a DC Motor without Tachometer Feedback | 2000-9-27 | ||||
| 应用手册 | Power Amplifier Stress and Power Handling Limitations | 2000-9-27 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
模拟工程师计算器旨在加快模拟电路设计工程师经常运用的许多重复性计算。该基于 PC 的工具提供图形界面，其中显示各种常见计算列表，从使用反馈电阻器设置运算放大器增益到选择合适的电路设计元件，以稳定模数转换器 (ADC) 驱动器缓冲器电路。
除了可用作独立工具之外，该计算器还能很好地与模拟工程师口袋参考中所述的概念配合使用。
TIPD138 — SPI-programmable 16-bit 36-V 1-A power supply with integrated current shunt reference design
此经过验证的设计为 SPI 控制的 36V 电源（能够提供 1A 拉电流）提供了理论、元件选择、仿真、PCB 设计和测量详细信息。它还包括集成的高侧电流分路，在多个十进制位电流负载下精度达到 1%。设计的输出作为 DAC8871 的输入源，DAC8871 支持单极性和双极性输出范围。因而，可轻松修改此电路来满足许多不同应用的需要。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TO-OTHER (KVC) | 11 | Ultra Librarian |
| TO-220 (KV) | 11 | Ultra Librarian |