- 制造厂商：TI
- 产品类别：电源管理
- 技术类目：电源开关 - 负载开关
- 功能描述：使能端低电平有效、具有电流限制的 5.5V、0.04A、500mΩ 负载开关
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The TPS22941/2/3/4/5 load switches provide protection to systems and loads in high-current conditions. The devices contain a 0.4-Ω current-limited P-channel MOSFET that can operate over an input voltage range of 1.62 V to 5.5 V. Current is prevented from flowing when the MOSFET is off. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. The TPS22941/2/3/4/5 includes thermal shutdown protection that prevents damage to the device when a continuous over-current condition causes excessive heating by turning off the switch.
These devices provide an integrated, robust solution to provide current limiting the output current to a safe level by switching into a constant-current mode when the ouptut load exceeds the current-limit threshold. The OC logic output asserts low during overcurrent, undervoltage, or overtemperature conditions. These additional features make the TPS22941/2/3/4/5 an ideal solution for applications where current limiting is necessary.
This family of devices are available in a SC70-5 (DCK) package. It is characterized for operation over the free-air temperature range of –40°C to 85°C.
- Input Voltage Range: 1.62 V to 5.5 V
- Low ON resistance
- rON = 0.4 Ω at VIN = 5.5 V
- rON = 0.5 Ω at VIN = 3.3 V
- rON = 0.6 Ω at VIN = 2.5 V
- rON = 0.8 Ω at VIN = 1.8 V
- Minimum Current Limit: 40mA or 100 mA
- Undervoltage Lockout (UVLO)
- Thermal Shutdown
- Shutdown Current < 1 μA
- Fast Current Limit Response Time
- Fault Blanking
- Auto Restart
- 1.8-V Compatible Control Input Thresholds
- ESD Performance Tested Per JESD 22
- 4000-V Human-Body Model (A114-B, Class II)
- 1000-V Charged-Device Model (C101)
- Tiny SC-70 (DCK) Package
- UL Recognized Component (UL File 169910)
- Evaluated to IEC 60950-1, Ed 2, Am1, Annex CC, Test Program 2 with CB Report
- Number of channels (#)
- 1
- Vin (Min) (V)
- 1.62
- Vin (Max) (V)
- 5.5
- Imax (A)
- 0.08
- Ron (Typ) (mOhm)
- 500
- Shutdown current (ISD) (Typ) (uA)
- 1
- Quiescent current (Iq) (Typ) (uA)
- 40
- Soft start
- Fixed Rise Time
- Rise time (Typ) (us)
- 10
- Current limit type
- Fixed
- Features
- Active low, Thermal shutdown
- Operating temperature range (C)
- -40 to 85
TPS22941的完整型号有：TPS22941DCKR，以下是这些产品的关键参数及官网采购报价：
TPS22941DCKR，工作温度：-40 to 85，封装：SC70 (DCK)-5，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS22941DCKR的批量USD价格：0.354（1000+）
TPS22945EVM-082 — TPS22945 评估模块
TPS22945EVM-082 评估模块 (EVM) 是一个组装完备且经过测试的电路，用于评估 TPS22945 负载开关。通过该器件的输入和输出连接以及 PCB 布局布线，可提供进出被测器件的低电阻通道。通过测试点连接，EVM 用户可以在用户定义的测试条件下控制器件并进行准确的 RON 和时序测量。
TPS22941 PSpice Transient Model
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 (...)
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