TPS2041B-EP

ACTIVE

0.5A loading, ±30% ILIMIT accuracy, 2.7-5.5V, 70mΩ USB power switch, active-low

Product details

Product type Fixed current limit, Power switch Vin (min) (V) 2.7 Vin (max) (V) 5.5 Continuous current (max) (A) 0.5 Current limit (A) 1 Operating temperature range (°C) -55 to 125 Enable Active Low Number of switches 1 Current limit accuracy at 1 A 0.35 Rating HiRel Enhanced Product
Product type Fixed current limit, Power switch Vin (min) (V) 2.7 Vin (max) (V) 5.5 Continuous current (max) (A) 0.5 Current limit (A) 1 Operating temperature range (°C) -55 to 125 Enable Active Low Number of switches 1 Current limit accuracy at 1 A 0.35 Rating HiRel Enhanced Product
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 70-mΩ High-Side MOSFET
  • 500-mA Continuous Current
  • Thermal and Short-Circuit Protection
  • Current Limit:
    0.45 A (Min), 1.55 A (Max)
  • Operating Range: 2.7 V to 5.5 V
  • 0.6-ms Typical Rise Time
  • Undervoltage Lockout
  • Deglitched Fault Report (OC)
  • No OC Glitch During Power Up
  • Maximum Standby Supply Current: 1 μA
  • Bidirectional Switch
  • ESD Protection Level Per AEC-Q100 Classification
  • UL Recognized, File Number E169910
  • 70-mΩ High-Side MOSFET
  • 500-mA Continuous Current
  • Thermal and Short-Circuit Protection
  • Current Limit:
    0.45 A (Min), 1.55 A (Max)
  • Operating Range: 2.7 V to 5.5 V
  • 0.6-ms Typical Rise Time
  • Undervoltage Lockout
  • Deglitched Fault Report (OC)
  • No OC Glitch During Power Up
  • Maximum Standby Supply Current: 1 μA
  • Bidirectional Switch
  • ESD Protection Level Per AEC-Q100 Classification
  • UL Recognized, File Number E169910

The TPS2041B power-distribution switch is intended for applications where heavy capacitive loads and short circuits are likely to be encountered. This device incorporates 70-mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. 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 device 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 that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A (typ).

The TPS2041B power-distribution switch is intended for applications where heavy capacitive loads and short circuits are likely to be encountered. This device incorporates 70-mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. 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 device 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 that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A (typ).

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Technical documentation

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Type Title Date
* Data sheet TPS2041B-EP Datasheet datasheet 22 Sep 2011
* VID TPS2041B-EP VID V6211620 21 Jun 2016
* Radiation & reliability report TPS2041BMDBVTEP Reliability Report 06 Jan 2016

Design & development

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

Simulation model

TPS2041B TINA-TI Transient Reference Design

SLVM492.TSC (649 KB) - TINA-TI Reference Design
Simulation model

TPS2041B TINA-TI Transient Spice Model

SLVM493.ZIP (36 KB) - TINA-TI Spice Model
Simulation model

TPS2041B Unencrypted PSpice Transient Model Package (Rev. A)

SLVM381A.ZIP (32 KB) - PSpice Model
Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

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