Features 

• Wide operating range: 9 V to 80 V

• In-rush current limit for safe board insertion into live power sources

• Programmable maximum power dissipation in the external pass device 

• Adjustable current limit

• Circuit breaker function for severe overcurrent events

• Internal high side charge pump and gate driver for external N-channel MOSFET

• Adjustable undervoltage lockout (UVLO) and hysteresis

• Adjustable overvoltage lockout (OVLO) and hysteresis

• Initial insertion timer allows ringing and transients to subside after system connection

• Programmable fault timer avoids nuisance trips

• Active high open drain POWER GOOD output

• Available in latched fault and automatic restart versions 

• 10-Pin VSSOP package

Description 

The ZC5069positive hot swap controller providesintelli gent control of the power supply connectionsduring in sertion and removal of circuit cards from alive system backplane or other hot power sources.Th e ZCC5069provides in-rush current control to limitsyste m voltage droop and transients. The current limitand pow er dissipation in the external series pass N-Channel MOSFET are programmable, ensuringoper ation within the Safe Operating Area (SOA). The POWER GOOD output indicates when the outputvolta ge is within 1.25 V of the input voltage. The inputundervolt age and overvoltage lockout levels andhysteresis ar e programmable, as well as the initialinsertion delay ti me and fault detection time. TheZCC5069-1 latches of f after a fault detection, while theZCC5069-2 automaticall y restarts at a fixed duty cycle.ZCC5069is available in a 1 0-pin VSSOP packag

 Applications

• Server backplane systems

• Base station power distribution systems

• Solid state circuit breaker

• 24-V and 48-V Industrial systems 3

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