TPS2065-1 Current-Limited, Power-Distribution Switches with Output Discharge resistor | TI.com

TPS2065-1 (ACTIVE) Current-Limited, Power-Distribution Switches with Output Discharge resistor

Current-Limited, Power-Distribution Switches with Output Discharge resistor - TPS2065-1
Datasheet
 

Description

The TPS206x-1 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.

These switches provide a discharge function that provides a controlled discharge of the output voltage stored on the output capacitor.

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

  • Output Discharge Function
  • 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
  • Ambient Temperature Range: -40°C to 85°C
  • ESD Protection
  • APPLICATIONS
    • Heavy Capacitive Loads
    • Short-Circuit Protections

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
TPS2065-1 Order now 2.7     5.5     0.55 | 1ku     1     1.5     Constant-Current     Active High     1     -40 to 85     MSOP-PowerPAD | 8     8MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 8)     Catalog    
TPS2062-1 Order now 2.7     5.5     0.70 | 1ku     1     1.5     Constant-Current     Active Low     2     -40 to 85     SOIC | 8     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)     Catalog    
TPS2066-1 Samples not available 2.7     5.5     0.80 | 1ku     1     1.5     Constant-Current     Active High     2     -40 to 85     MSOP-PowerPAD | 8     8MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 8)     Catalog