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Product details

Parameters

Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Continuous current (Max) (A) 2 Current limit (A) 3 Product type Fixed current limit, Power switch Operating temperature range (C) -40 to 85 Enable Active Low Number of switches 1 Rating Catalog open-in-new Find other USB power switches & charging port controllers

Package | Pins | Size

PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other USB power switches & charging port controllers

Features

  • 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

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Description

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.

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Technical documentation

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Type Title Date
* Data sheet TPS2020/21/22/23/24 - Power-Distribution Switches datasheet (Rev. C) Sep. 24, 2007
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
User guide Single Channel Power-Distribution Switch EVM (Rev. B) Dec. 17, 2007
Application note Protecting Industrial Digital Control Outputs Using Intelligent MOSFETS Oct. 26, 2000
Application note TPS202x/3x And TPS204x/5x USB Power Distribution Oct. 16, 1998

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
149
Description
The TUSB216I evaluation module can be used to evaluate the signal conditioning abilities of the TUSB216I device for various applications.
Features
  • Plug and play design
  • Evaluation module is powered by USB, no external components needed
  • All device pin configuration options can be evaluated on the EVM
  • LEDs available to view device status
  • I2C interface accessible
EVALUATION BOARD Download
document-generic User guide
149
Description
The TUSB217AEVM-BC evaluation module can be used to evaluate the signal conditioning abilities of the TUSB217A device for various applications
Features
  • Plug and play design
  • Evaluation module is powered by USB, no external components needed
  • All device pin configuration options can be evaluated on the evaluation module
  • LEDs available to view device status
  • I2C interface accessible

CAD/CAE symbols

Package Pins Download
PDIP (P) 8 View options
SOIC (D) 8 View options

Ordering & quality

Information included:
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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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