Datasheet Microchip FP0100

Supertex inc. FP0100 Fault Protection Switch
with Current Fold-back
Features
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в–єв–є General Description The Supertex FP0100 is a high voltage fault protection switch
with current fold-back. It is designed to protect system output
power supplies against over-current or short circuit conditions.
In protection mode, the FP0100 limits the current to 300ВµA. Up to 100V input voltage protection
Low on resistance – 4.0Ω typical
Fast switching speed
No external supplies needed The FP0100 can be considered as a normally closed switch
with a typical switch resistance of 4.0О©. The peak current
allowed to pass through the switch can be set by an external
resistor across VOUT and RSEN. Once the voltage drop
across VIN and VOUT exceeds a nominal value of 3.0V,
the input current will fold-back to 300ВµA. In the off state, the
FP0100 can withstand up to 100V. Higher input voltages
can be accommodated by using an external depletion-mode
MOSFET. Please refer to Figure 4 for more details. The
FP0100 is available in a SOT-89 package. Applications
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