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OPA569

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功率运算放大器、输出信号在 2A 输出电流下在 200mV 电源轨范围内摆动

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OPA569

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产品详情

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Iout (typ) (A) 2.4 GBW (typ) (MHz) 1.2 Slew rate (typ) (V/µs) 1.2 Vos (offset voltage at 25°C) (max) (mV) 2 Offset drift (typ) (V/°C) 0.0000013 Iq per channel (typ) (mA) 9 Features Adj Current Limit, Shutdown Rating Catalog Operating temperature range (°C) -55 to 125 Input bias current (max) (pA) 10 CMRR (typ) (dB) 90 Rail-to-rail In to V-, Out Architecture FET
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Iout (typ) (A) 2.4 GBW (typ) (MHz) 1.2 Slew rate (typ) (V/µs) 1.2 Vos (offset voltage at 25°C) (max) (mV) 2 Offset drift (typ) (V/°C) 0.0000013 Iq per channel (typ) (mA) 9 Features Adj Current Limit, Shutdown Rating Catalog Operating temperature range (°C) -55 to 125 Input bias current (max) (pA) 10 CMRR (typ) (dB) 90 Rail-to-rail In to V-, Out Architecture FET
HSOIC (DWP) 20 133.444125 mm² 12.825 x 10.405
  • HIGH OUTPUT CURRENT: 2A
  • OUTPUT SWINGS TO: 150mV of Rails with IO =2A
  • THERMAL PROTECTION
  • ADJUSTABLE CURRENT LIMIT
  • TWO FLAGS: Current Limit and Temperature Warning
  • LOW SUPPLY VOLTAGE OPERATION: 2.7V to 5.5V
  • SHUTDOWN FUNCTION WITH OUTPUT DISABLE
  • SMALL POWER PACKAGE: SO-20 PowerPAD™
  • APPLICATIONS
    • THERMOELECTRIC COOLER DRIVER
    • LASER DIODE PUMP DRIVER
    • VALVE, ACTUATOR DRIVER
    • SYNCHRO, SERVO DRIVER
    • TRANSDUCER EXCITATION
    • GENERAL LINEAR POWER BOOSTER FOR OP AMPS
    • PARALLELING OPTION FOR HIGHER CURRENT APPLICATIONS

PowerPAD is a trademark of Texas Instruments.
  • HIGH OUTPUT CURRENT: 2A
  • OUTPUT SWINGS TO: 150mV of Rails with IO =2A
  • THERMAL PROTECTION
  • ADJUSTABLE CURRENT LIMIT
  • TWO FLAGS: Current Limit and Temperature Warning
  • LOW SUPPLY VOLTAGE OPERATION: 2.7V to 5.5V
  • SHUTDOWN FUNCTION WITH OUTPUT DISABLE
  • SMALL POWER PACKAGE: SO-20 PowerPAD™
  • APPLICATIONS
    • THERMOELECTRIC COOLER DRIVER
    • LASER DIODE PUMP DRIVER
    • VALVE, ACTUATOR DRIVER
    • SYNCHRO, SERVO DRIVER
    • TRANSDUCER EXCITATION
    • GENERAL LINEAR POWER BOOSTER FOR OP AMPS
    • PARALLELING OPTION FOR HIGHER CURRENT APPLICATIONS

PowerPAD is a trademark of Texas Instruments.

The OPA569 is a low-cost, high-current, operational amplifier designed for driving a wide variety of loads while operating on low-voltage supplies. It operates from either single or dual supplies for design flexibility and has rail-to-rail swing on the input and output. Typical output swing is within 150mV of the supply rails, with output current of 2A. Output swing closer to the rails is achievable with lighter loads.

The OPA569 is unity gain stable, has low dc errors, is easy to use, and free from the phase inversion problems found in some power amplifiers. High performance is maintained at voltage swings near the output rails.

The OPA569 provides an accurate user-selected current limit that is set with an external resistor, or digitally adjusted via a Digital-to-Analog Converter.

The OPA569 output can be independently disabled using the Enable pin, saving power and protecting the load.

The IMONITOR pin provides a 1:475 bidirectional copy of the output current. This eliminates the need for a series current shunt resistor, allowing more voltage to be applied to the load. This pin can be used for simple monitoring, or feedback control to establish constant output current.

Two flags are provided: one for warning of thermal over-stress, and one for current limit condition. The Thermal Flag pin can be connected to the Enable pin to provide a thermal shutdown solution.

Packaged in the Texas Instruments PowerPAD™ package, it is small and easy to heat sink. The OPA569 is specified for operation over the extended industrial temperature range, –40°C to +85°C.

The OPA569 is a low-cost, high-current, operational amplifier designed for driving a wide variety of loads while operating on low-voltage supplies. It operates from either single or dual supplies for design flexibility and has rail-to-rail swing on the input and output. Typical output swing is within 150mV of the supply rails, with output current of 2A. Output swing closer to the rails is achievable with lighter loads.

The OPA569 is unity gain stable, has low dc errors, is easy to use, and free from the phase inversion problems found in some power amplifiers. High performance is maintained at voltage swings near the output rails.

The OPA569 provides an accurate user-selected current limit that is set with an external resistor, or digitally adjusted via a Digital-to-Analog Converter.

The OPA569 output can be independently disabled using the Enable pin, saving power and protecting the load.

The IMONITOR pin provides a 1:475 bidirectional copy of the output current. This eliminates the need for a series current shunt resistor, allowing more voltage to be applied to the load. This pin can be used for simple monitoring, or feedback control to establish constant output current.

Two flags are provided: one for warning of thermal over-stress, and one for current limit condition. The Thermal Flag pin can be connected to the Enable pin to provide a thermal shutdown solution.

Packaged in the Texas Instruments PowerPAD™ package, it is small and easy to heat sink. The OPA569 is specified for operation over the extended industrial temperature range, –40°C to +85°C.
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技术文档

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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 OPA569: Rail-To-Rail I/O, 2A Power Amplifier 数据表 (Rev. A) 2003年 10月 22日
电子书 An Engineer’s Guide to Designing with Precision Amplifiers 2021年 4月 29日
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 英语版 2018年 1月 31日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日
应用手册 高速数据转换 英语版 2008年 10月 16日
应用手册 Power Amplifier Stress and Power Handling Limitations 2000年 9月 27日

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）。

仿真模型

OPA569 PSpice Model (Rev. C)

SBOC003C.ZIP (33 KB) - PSpice Model
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仿真模型

OPA569 TINA-TI Current Limiting Reference Design (Rev. A)

SBOM357A.TSC (103 KB) - TINA-TI Reference Design
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仿真模型

OPA569 TINA-TI Reference Design (Rev. A)

SBOM356A.TSC (125 KB) - TINA-TI Reference Design
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仿真模型

OPA569 TINA-TI Spice Model (Rev. A)

SBOM355A.ZIP (9 KB) - TINA-TI Spice Model
下载
计算工具

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The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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支持的产品和硬件
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模拟工具

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PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助 PSpice for TI 的设计和仿真环境及其内置的模型库，您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案，然后再进行布局和制造，可缩短产品上市时间并降低开发成本。 

在 PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)
发送申请
模拟工具

TINA-TI — 基于 SPICE 的模拟仿真程序

TINA-TI 提供了 SPICE 所有的传统直流、瞬态和频域分析以及更多。TINA 具有广泛的后处理功能，允许您按照希望的方式设置结果的格式。虚拟仪器允许您选择输入波形、探针电路节点电压和波形。TINA 的原理图捕获非常直观 - 真正的“快速入门”。

TINA-TI 安装需要大约 500MB。直接安装，如果想卸载也很容易。我们相信您肯定会爱不释手。

TINA 是德州仪器 (TI) 专有的 DesignSoft 产品。该免费版本具有完整的功能，但不支持完整版 TINA 所提供的某些其他功能。

如需获取可用 TINA-TI 模型的完整列表，请参阅：SpiceRack - 完整列表 

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用户指南: PDF
英语版 (Rev.A): PDF
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参考设计

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此近红外线 (NIR) 光谱仪参考设计利用德州仪器 (TI) 的 DLP 技术以及单元件 InGaAs 检测器进行高性能的测量，该设计具有便携式外形，与昂贵的 InGaAs 阵列检测器或易损的旋转光栅架构相比更实惠。NIR 光谱仪通常用于针对食品、农业、药物、石油化工产品和塑料等应用分析有机液体和固体。 开发人员在高端实验室级光谱仪中结合强大的 Sitara 嵌入式处理器和模拟信号链元件后，现在它能够在现场和生产线上发挥自己的作用。
测试报告: PDF
原理图: PDF
参考设计

TIPD103 — 桥接负载 V-I 转换器，0.5 至 4.5 V 输入，+/- 2A 输出，5% 误差

此验证设计电路是一种双向电流源，可用于驱动浮动负载，尤其是单端源的热电冷却器 (TEC)。此电路利用内部输出电流监视器电路 (IMON)，该电路是 OPA569 功率放大器的特色之一。V-I 转换功能通过使用 IMON 电流作为第一个放大器的反馈而实现。这可以使用户生成可取消 IMON 电流的输入信号，从而得到经过良好调节的输出电流。第二个放大器反转第一个放大器的输出以实现桥接式负载 (BTL) 操作，在负载范围内使电压摆幅和转换率加倍，在单端电源上实现双向操作和良好的电压摆幅。OPA569 的出色输出摆幅至轨可以利用 5 V 单端电源在 2 A 输出电流下实现 4.5 V 的可用输出电压。
用户指南: PDF
原理图: PDF
英语版: PDF
封装 引脚 CAD 符号、封装和 3D 模型
HSOIC (DWP) 20 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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