Hot-selling and scarce TPS2042BDR Current-Limited Power-Distribution Switches SOP8 spot stock

Product Descriptions

The TPS20xxB power-distribution switches are  intended for applications where heavy capacitive  loads and short circuits are likely to be encountered.  These devices incorporates 70mΩ 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 powerswitch 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 2.7V.

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 powerdistribution switch is designed to set current limit at  1A (typical).

Product Features

• 70mΩ High-Side MOSFET

• 500mA Continuous Current

• Thermal and Short-Circuit Protection

• Accurate Current Limit (0.75A Minimum, 1.25A Maximum)

• Operating Range: 2.7V to 5.5V

• 0.6ms Typical Rise Time

• Undervoltage Lockout

• Deglitched Fault Report ( OC)

• No OC Glitch During Power Up

• Maximum Standby Supply Current:1μA (Single, Dual) or 2μA (Triple, Quad)

• Ambient Temperature Range: –40°C to 85°C

• UL Recognized, File Number E169910

• Additional UL Recognition for TPS2042B and TPS2052B for Ganged Configuration

Product Applications

• Heavy Capacitive Loads

• Short-Circuit Protections

Product Specification

Product Photos

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