TPS2066 Dual 1A Current-Limited, Power-Distribution Switches | TI.com

TPS2066 (ACTIVE)

Dual 1A Current-Limited, Power-Distribution Switches

Dual 1A Current-Limited, Power-Distribution Switches - TPS2066
Datasheet
 

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Description

The TPS206x power-distribution switches are intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. This device incorporates 70-m 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 (OCx) 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 1.5 A typically.

Features

  • 70-m High-Side MOSFET
  • 1-A Continuous Current
  • Thermal and Short-Circuit Protection
  • Accurate Current Limit (1.1 A min, 1.9 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
  • 1-µA Maximum Standby Supply Current
  • Bidirectional Switch
  • Ambient Temperature Range: -40°C to 85°C
  • Built-in Soft-Start
  • UL Listed - File No. E169910
  • APPLICATIONS
    • Heavy Capacitive Loads
    • Short-Circuit Protections

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Parametrics Compare all products in Fixed Current Limited Switch

 
Vin (Min) (V)
Vin (Max) (V)
Number of Switches
USB Switch rDS(on) (mOhms)
Continuous Current (Max) (A)
Enable
Current Limit Topology
Rating
Operating Temperature Range (C)
Pin/Package
TPS2066 TPS2061 TPS2062 TPS2063 TPS2065 TPS2067
2.7     2.7     2.7     2.7     2.7     2.7    
5.5     5.5     5.5     5.5     5.5     5.5    
2     1     2     3     1     3    
70     70     70     70     70     70    
1     1     1     1     1     1    
Active High     Active Low     Active Low     Active Low     Active High     Active High    
Constant-Current     Constant-Current     Constant-Current     Constant-Current     Constant-Current     Constant-Current    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -40 to 85
0 to 70    
-40 to 85     -40 to 85     -40 to 85     -40 to 85    
8MSOP-PowerPAD
8SOIC    
5SOT-23
8MSOP-PowerPAD
8SOIC    
8MSOP-PowerPAD
8SOIC    
16SOIC     5SOT-23
8MSOP-PowerPAD
8SOIC    
16SOIC    

Other qualified versions of TPS2066

Version Part Number Definition
Automotive TPS2066-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects