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-TriptM 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