TPS2561 Dual Channel Precision Adjustable Current-Limited Power Switches | TI.com

TPS2561 (ACTIVE)

Dual Channel Precision Adjustable Current-Limited Power Switches

 

Description

The TPS2560 and TPS2561 are dual-channel power-distribution switches 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 and off.

Each channel of the TPS256x devices limit 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 overtemperature conditions.

Features

  • Two Separate Current Limiting Channels
  • Meets USB Current-Limiting Requirements
  • Adjustable Current Limit, 250 mA to 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 / 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) Approx. price (US$) Continuous current (Max) (A) Current limit (A) Current limit topology Enable Number of switches Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Rating
TPS2561 Order now 2.5     6.5     0.80 | 1ku     2.5     0.25 to 2.5     Constant-Current     Active High     2     -40 to 85     VSON | 10     10VSON: 9 mm2: 3 x 3 (VSON | 10)     Catalog    
TPS2560 Order now 2.5     6.5     0.80 | 1ku     2.5     0.25 to 2.5     Constant-Current     Active Low     2     -40 to 85     VSON | 10     10VSON: 9 mm2: 3 x 3 (VSON | 10)     Catalog    
TPS2560A Order now 2.5     6.5     0.80 | 1ku     2.5     0.25 to 2.5     Constant-Current     Active Low     2     -40 to 85     VSON | 10     10VSON: 9 mm2: 3 x 3 (VSON | 10)     Catalog    
TPS2561A Order now 2.5     6.5     0.80 | 1ku     2.5     0.25 to 2.5     Constant-Current     Active High     2     -40 to 85     VSON | 10     10VSON: 9 mm2: 3 x 3 (VSON | 10)     Catalog