PRODUCT DESCRIPTION
The SMH4803A is an integrated solution for high reliability systems to monitor and react to events that could have a detrimental effect on a system. It can contain or limit faults to a single circuit board before that fault propagates to the system. Its programmability lets a single board satisfy multiple circuit demands while customized to meet special requirements.

FEATURES
Soft Starts Main Power Supply on Card Insertion or System Power Up
Senses Card Insertion via Short Pins or Ejector Switches
Master Enable to Allow System Control of Power Up or Down
 Can be used as a Temperature Sense Input
Programmable Independent Controls of 3 DC/DC Converters
 Not Enabled until Host Supply Fully Soft Started
 Programmable Time Delay Between each Enable Signal
 Available Input to hold off Dependant Enables until Conditions are Satisfied
Highly Programmable Circuit Breaker
 Programmable Quick-Trip^tM Values
 Programmable Current Limiting
 Programmable Circuit Breaker Mode:
Latched (Volatile or Nonvolatile)
 Programmable Duty Cycle Times
 Programmable Over-current Filter
Programmable Host Voltage Fault Monitoring
 Programmable Under- voltage Hysteresis
 Programmable UV/OV Voltage Filter
 Programmable Fault Mode: Latched or Duty Cycle
Nonvolatile Programming to Customize Features
 Available Pre-programmed from Summit
2.5V and 5.0V Reference Outputs
 Eliminates the Need or Other Primary Volt ages
 Easy Expansion of External Monitor Functions
Supply Range ±20VDC to >±500VDC