HV302 - Supertex Inc

HV302 Sequencing Hotswap Controllers

The HV302 and HV312 Hotswap Controllers perform current limiting, circuit breaker protection, over and under voltage detection power management functions during insertion of cards or modules into live backplanes and connectors. They may be used in systems where active control is implemented in the negative lead of supplies ranging from -10V to -90V or +10V t.

Features

-10V to 90V or +10V to +90V Operation Four PWRGD Flags with Programmable Delays Integrated “normally-on” Gate Clamp eliminates components UV/OV Lock Out & Power-On-Reset (POR) for Debouncing Sense resistor programmed Circuit Breaker & Servo Limit Programmable Circuit Breaker Delay Inrush control using either: Servo or Feedback Capacitor Feedback to RAMP pin saves gate protection components 100ms Start Up Timeout Protection for Output Overload Programmable Inrush Current di/dt Control Programmable Auto-Retry (tens of seconds if desired) Auto-Retry or Latched Operation Application solution for i.