Latchable Negative Floating Hot Swap Power Manager

The UCC3921 family of negative floating Hot Swap UCC1921 UCC2921 UCC3921 power managers pro- vides complete Power Management Hot Swap and fault handling capa- bility. The IC is referenced to the negative input voltage and is powered through an external resistor connected to ground, which is essentially a current drive as opposed to the traditional voltage drive. The onboard 10V Shunt Regulator protects the IC from excess voltage and serves as a reference for programming the maximum allowable output sourcing cur- rent during a fault. All control and housekeeping functions are integrated and externally programmable. These include the fault current level, maxi- mum output sourcing current, maximum fault time, selection of Retry or Latched mode, soft start time, and average power limiting. In the event of a constant fault, the internal Timer will limit the on time from less than 0.1% to a maximum of 3% duty cycle. The duty cycle modulation de- pends on the current into PL, which is a function of the voltage across the FET thus limiting average power dissipation in the FET By Texas Instruments
UCC1921 's PackagesUCC1921 's pdf datasheet



UCC1921 Pinout, Pinouts
UCC1921 pinout,Pin out
This is one package pinout of UCC1921,If you need more pinouts please download UCC1921's pdf datasheet.

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