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Product details

Parameters

Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Continuous current (Max) (A) 0.5 Current limit (A) 0.9 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

  • 135-m -Maximum (5-V Input) High-Side MOSFET Switch
  • 500 mA Continuous Current
  • Short-Circuit and Thermal Protection
  • Overcurrent Logic Output
  • Operating Range...2.7 V to 5.5 V
  • Logic-Level Enable Input
  • 2.5-ms Typical Rise Time
  • Undervoltage Lockout
  • 10 uA Maximum Standby Supply Current
  • Bidirectional Switch
  • 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
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Description

The TPS2041 and TPS2051 power distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. The TPS2041 and the TPS2051 are 135-m N-channel MOSFET high-side power switches. Each switch is controlled by a logic enable that is 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 TPS2041 and TPS2051 limit 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 TPS2041 and TPS2051 are designed to limit at 0.9-A load. These power distribution switches are available in 8-pin small-outline integrated circuit (SOIC) and 8-pin plastic dual-in-line packages (PDIP) and operate over an ambient temperature range of -40°C to 85°C.

The D package is available taped and reeled. Add an R suffix to device type (e.g., TPS2041DR)

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Exact equivalent in functionality and parametrics to the compared device:
TPS2041B ACTIVE Single-channel current-limited power distribution switch This product offers higher current limit accuracy

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 3
Type Title Date
* Datasheet TPS2041, TPS2051 - Power-Distribution Switches datasheet (Rev. A) Oct. 14, 1998
Application note Hot Plug Express Card Sep. 23, 2005
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
TPS2041B Evaluation Module
TPS2041BEVM-290
49
Description

The TPS2041BEVM-290 is an evaluation module for the Texas Instruments family of single-channel, current limited, power distribution switches. These EVMs operate over a 2.7 V to 5.5 V range and provide a continuous output current of up to 2 A. Test points provide convenient access to (...)

EVALUATION BOARD Download
TPS2041B Evaluation Module
TPS2041BEVM-292
49

CAD/CAE symbols

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

Ordering & quality

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

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