TI LM5067MM-1/NOPB

The LM5067 negative voltage hot-swap controller provides intelligent control of power connections during circuit board insertion and removal from a live system backplane or other "hot-plug" power sources, while limiting system voltage droop and transients through inrush current control. Current limiting and power dissipation in the external series pass N-channel MOSFET are programmable to ensure operation within the safe operating area (SOA). In addition, the LM5067 monitors overcurrent and overvoltage conditions to provide circuit protection. A power-good output is asserted when the output voltage approaches the input voltage. Input undervoltage and overvoltage lockout levels and hysteresis, as well as fault monitoring timing, are all programmable. The LM5067 is available in a 10-pin VSSOP package and a 14-pin SOIC package.

• Wide operating voltage range: -9 V to -80 V
• Inrush current limiting for safe hot insertion into live power supplies
• Programmable maximum power dissipation in external pass device
• Adjustable current limit
• Circuit breaker function for severe overcurrent events
• Adjustable UVLO and hysteresis
• Adjustable OVLO and hysteresis
• Initial insertion timer to allow ringing and transients to settle after system connection
• Programmable fault timer to prevent nuisance tripping
• Active-high, open-drain power-good status output
• Available in fault latch and auto-restart versions

• Server backplane system inrush current limiting
• Solid-state circuit breaker
• Transient voltage protector
• Solid-state relay
• Undervoltage lockout
• Power-good detector and indicator