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TPS2020的基本参数
  • 制造厂商:TI
  • 产品类别:电源管理
  • 技术类目:USB 电源开关和充电端口控制器
  • 功能描述:低电平有效的 0.2A 负载、2.7-5.5V、33mΩ USB 电源开关
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TPS2020的产品详情:

The TPS202x family of power distribution switches is intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices are 50-m N-channel MOSFET high-side power switches. The switch is controlled by a logic enable compatible with 5-V logic and 3-V logic. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.

When the output load exceeds the current-limit threshold or a short is present, the TPS202x limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OC) logic output low. When continuous heavy overloads and short circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until valid input voltage is present.

The TPS202x devices differ only in short-circuit current threshold. The TPS2020 limits at 0.3-A load, the TPS2021 at 0.9-A load, the TPS2022 at 1.5-A load, the TPS2023 at 2.2-A load, and the TPS2024 at 3-A load (see ). The TPS202x is available in an 8-pin small-outline integrated-circuit (SOIC) package and in an 8-pin dual in-line package (DIP) and operates over a junction temperature range of -40°C to 125°C.

TPS2020的优势和特性:
  • 33-m (5-V Input) High-Side MOSFET Switch
  • Short-Circuit and Thermal Protection
  • Overcurrent Logic Output
  • Operating Range . . . 2.7 V to 5.5 V
  • Logic-Level Enable Input
  • Typical Rise Time . . . 6.1 ms
  • Undervoltage Lockout
  • Maximum Standby Supply Current . . . 10 μA
  • No Drain-Source Back-Gate Diode
  • Available in 8-Pin SOIC and PDIP Packages
  • Ambient Temperature Range, -40°C to 85°C
  • 2-kV Human-Body-Model, 200-V Machine-Model ESD Protection
  • UL Listed - File No. E169910

TPS2020的参数(英文):
  • Vin (Min) (V)
  • 2.7
  • Vin (Max) (V)
  • 5.5
  • Continuous current (Max) (A)
  • 0.2
  • Current limit (A)
  • 0.3
  • Product type
  • Fixed current limit, Power switch
  • Operating temperature range (C)
  • -40 to 125
  • Enable
  • Active Low
  • Number of switches
  • 1
  • Rating
  • Catalog
TPS2020具体的完整产品型号参数及价格(美元):

TPS2020的完整型号有:TPS2020D、TPS2020DR,以下是这些产品的关键参数及官网采购报价:

TPS2020D,工作温度:-40 to 125,封装:SOIC (D)-8,包装数量MPQ:75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TPS2020D的批量USD价格:.906(1000+)

TPS2020DR,工作温度:-40 to 125,封装:SOIC (D)-8,包装数量MPQ:2500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TPS2020DR的批量USD价格:.761(1000+)

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TPS2020的评估套件:

TPS2020EVM-290 — TPS2020 评估模块

The TPS2020EVM-290 is an evaluation module for the Texas Instruments family of single-channel, current limited, power distribution switches. These EVMs operate over a 2.7V to 5.5V range and provide a continuous output current of up to 2A. Test points provide convenient access to (...)

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