The TPS25200 is an intelligent low voltage switch or e-Fuse with robust overcurrent and overvoltage protection which are suitable for a variety of applications.

The TPS25200 current limited power switch uses N-channel MOSFETs in applications requiring up to 2.5 A of continuous load current. The device allows the user to program the current-limit threshold between 85 mA and 2.9 A (typical) via an external resistor. The device enters constant-current mode when the load exceeds the current-limit threshold.

The TPS25200 Input can withstand 20-V DC voltage, but clamps V_OUT to a precision regulated 5.4 V and shuts down in the event V_IN exceeds 7.6 V. The device also integrates overcurrent and short circuit protection. The precision overcurrent limit helps to minimize over design of the input power supply while the fast response short circuit protection isolates the load when a short circuit is detected.

The additional features include:

• Enable the device can be put into a sleep mode for portable applications.
• Overtemperature protection to safely shutdown in the event of an overcurrent event or a slight overvoltage event where the V_OUT clamp is engaged over and extended period of time.
• Deglitched fault reporting to filter the Fault signal to ensure the TPS25200 do not provide false fault alerts.
• Output discharge pull-down to help ensue a load is in fact off and not in some undefined operational state.
• Reverse blocking when disabled to prevent back-drive from an active load inadvertently causing undetermined behavior in the application.