TPS2561-Q1 Automotive 2.7 to 5.5V, Dual Channel Precision Adjustable Current-Limit Power Distribution Switch | TI.com

TPS2561-Q1
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Automotive 2.7 to 5.5V, Dual Channel Precision Adjustable Current-Limit Power Distribution Switch

 

Description

The TPS2561-Q1 is a dual-channel power-distribution switch intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. These devices offer a programmable current-limit threshold between 250 mA and 2.8 A (typ) per channel through an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turn on or off.

Each channel of the TPS2561-Q1 device limits the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. The FAULTx logic output for each channel independently asserts low during overcurrent and over temperature conditions.

Features

  • Qualified for Automotive Applications
  • Two Separate Current Limiting Channels
  • Meets USB Current-Limiting Requirements
  • Adjustable Current Limit, 250 mA–2.8 A (typ)
  • ± 7.5% Current-Limit Accuracy at 2.8 A
  • Fast Overcurrent Response - 3.5-µS (typ)
  • Two 44-mΩ High-Side MOSFETs
  • Operating Range: 2.5 V to 6.5 V
  • 2-µA Maximum Standby Supply Current
  • Built-in Soft-Start
  • 15 kV or 8 kV System-Level ESD Capable
  • UL Listed – File No. E169910
  • CB and Nemko Certified

Parametrics

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Part number Order Vin (Min) (V) Vin (Max) (V) Continuous current (Max) (A) Current limit (A) Enable Number of switches Rating
TPS2561-Q1 Order now 2.5     6.5     2.5     0.25 to 2.5     Active High     2     Automotive    
TPS2551-Q1 Order now 2.5     6.5     1.1     0.1 to 1.1     Active High     1     Automotive    
TPS2553-Q1 Order now 2.5     6.5     1.5     0.075 to 1.7     Active High     1     Automotive