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TPS22943的基本参数
  • 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:使能端高电平有效、具有电流限制的 5.5V、0.04A、500mΩ 负载开关
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TPS22943的产品详情:

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.

TPS22943的优势和特性:
  • 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
TPS22943的参数(英文):
  • Number of channels (#)
  • 1
  • Vin (Min) (V)
  • 1.62
  • Vin (Max) (V)
  • 5.5
  • Imax (A)
  • 0.2
  • 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
  • Thermal shutdown
  • Operating temperature range (C)
  • -40 to 85
TPS22943具体的完整产品型号参数及价格(美元):

TPS22943的完整型号有:TPS22943DCKR,以下是这些产品的关键参数及官网采购报价:

TPS22943DCKR,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TPS22943DCKR的批量USD价格:0.354(1000+)

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TPS22943的评估套件:

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。

TPS22943 Unencrypted PSpice Transient Model Package (Rev. A)

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