SMH4803 - Summit Microelectronics

SMH4803 Distributed Power Hot-Swap Controller

Drain sense input Output to MOSFET gate Enable/Temp Sense input Pin Detect 1 (active LO) Pin Detect 2 (active LO) Circuit Breaker Fault output Circuit Breaker Reset intput Circuit Breaker Mode control Cicruit Breaker Sense input Negative Supply Connection Under Voltage input Over Voltage input 5V reference output 2.5V reference output Enable input B Enable i.

Features

• Supply Range ±20VDC to >±500VDC
• Versatile Card Insertion Detection Supports Both
  – Multi-length Pin Systems
  – Card Injector Switch Sensing
• Control Up to Four Loads or a Primary Load and 3 DC/DC Converters
• Highly Programmable Host Voltage Monitoring
  – Programmable Under- and Over-voltage Detection
• Programmable Power Good Delays for Sequencing DC/DC Converters
• Programmable Circuit Breaker Function
  – Programmable Over-current Filter
  – Programmable Quick-Trip™ Circuit Breaker Values
  – Programmable Circuit Breaker Mode
• Duty-Cycle Mode
•
• Latched Mode 2.5V and 5.0V reference outputs .