Precision Adjustable Current-Limited Power Distribution Switches - TPS2552D

TPS2552D (ACTIVE)

Precision Adjustable Current-Limited Power Distribution Switches

 

More Information and Sample Availability

To evaluate the TPS2552D, use the TPS2552DBVEVM-364.

Description

The TPS2552D and TPS2553D power-distribution switches are intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered and provide up to 1.5 A of continuous load current. These devices offer a programmable current-limit threshold between 75 mA and 1.7 A (typ) via an external resistor. Current-limit accuracy as tight as ±6% can be achieved at the higher current-limit settings. The power-switch rise and fall times are controlled to minimize current surges during turn on/off.

The TPS2552D/3D devices limit the output current to a safe level by using a constant-current mode when the output load exceeds the current-limit threshold. An internal reverse-voltage comparator disables the power-switch when the output voltage is driven higher than the input to protect devices on the input side of the switch. The FAULT output asserts low during overcurrent and reverse-voltage conditions.

Features

  • Up to 1.5 A Maximum Load Current
  • ±6% Current-Limit Accuracy at 1.7 A (Typ)
  • Meets USB Current-Limiting Requirements
  • Backwards Compatible with TPS2550/51
  • Adjustable Current Limit, 75 mA–1700 mA (Typ)
  • Constant-Current (TPS2552D and TPS2553D)
  • TPS2552D (Enable Low) and TPS2553D (Enable High)
  • Fast Overcurrent Response - 2 µs (Typ)
  • 85-mΩ High-Side MOSFET (DBV Package)
  • Reverse Input-Output Voltage Protection
  • Operating Range: 2.7 V to 6.5 V
  • Built-in Soft-Start
  • 15 kV ESD Protection per IEC 61000-4-2 (With External Capacitance)
  • UL Listed – File No. E169910 and NEMKO IEC60950-1-am1 ed2.0
  • See the TI Switch Portfolio

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Parametrics Compare all products in Precision Adjustable Limit Switch

 
Vin (Min) (V)
Vin (Max) (V)
Number of Switches
rDS(on) per FET (Typ) (mOhms)
Continuous Current (Max) (A)
Current Limit (A)
Current Limit Accuracy @ 1A
Enable
Current Limit Topology
Rating
Operating Temperature Range (C)
Pin/Package
TPS2552D TPS2552 TPS2552-1 TPS2553 TPS2553-1 TPS2553D
2.7    2.5    2.5    2.5    2.5    2.7   
6.5    6.5    6.5    6.5    6.5    6.5   
1    1    1    1    1    1   
  100/DRV
85/DBV   
100/DRV
85/DBV   
100/DRV
85/DBV   
100/DRV
85/DBV   
 
1.7    1.5    1.5    1.5    1.5    1.7   
75mA to 1.7    0.075 to 1.7    0.075 to 1.7    0.075 to 1.7    0.075 to 1.7    75mA to 1.7A   
7.5%(925mA min / 1075mA max)    +/-7.5% (925mA min / 1075mA max)    +/-7.5% (925mA min / 1075mA max)    +/-7.5% (925mA min / 1075mA max)    +/-7.5% (925mA min / 1075mA max)    7.5%(925mA min / 1075mA max)   
Active Low    Active Low    Active Low    Active High    Active High    Active High   
Constant-Current    Constant-Current    Latch Off    Constant-Current    Latch Off    Constant-Current   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 125   
6SOT-23    6SOT-23
6WSON   
6SOT-23
6WSON   
6SOT-23
6WSON   
6SOT-23
6WSON   
6SOT-23   

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