●The LM5067 negative hot swap controller provides intelligent control of the power supply connections during insertion and removal of circuit cards from a live system backplane or other “hot” power sources. The LM5067 provides in-rush current control to limit system voltage droop and transients. The current limit and power dissipation in the external series pass N-Channel MOSFET are programmable, ensuring operation within the Safe Operating Area (SOA). In addition, the LM5067 provides circuit protection by monitoring for over-current and over-voltage conditions. The POWER GOOD output indicates when the output voltage is close to the input voltage. The input under-voltage and over-voltage lockout levels and hysteresis are programmable, as well as the fault detection time. The LM5067-1 latches off after a fault detection, while the LM5067-2 automatically attempts restarts at a fixed duty cycle. The LM5067 is available in a 10-pin VSSOP package and a 14-pin SOIC package.
● Wide operating range: -9V to -80V
● 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 over-current events
● Adjustable under-voltage lockout (UVLO) and hysteresis
● Adjustable over-voltage 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
●## Packages
● VSSOP-10
● SOIC-14 (Latched Fault Version)
●All trademarks are the property of their respective owners.
