LM25069

LM25069 www.ti.com SNVS607E – FEBRUARY 2011 – REVISED MARCH 2013 LM25069 Positive Low Voltage Power Limiting Hot Swap Controller Check for Samples: LM25069 FEATURES 1 2 Operating R ange: +2.9V to +17V 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 Internal High Side Charge Pump and Gate Driver for External N-channel MOSFET 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 APPLICATIONS Server Backplane Systems Base Station Power Distribution Systems Solid State Circuit Breaker PACKAGE VSSOP-10 DESCRIPTION The LM25069 positive hot swap controller provides intelligent control of the power supply voltage to the load during insertion and removal of circuit cards from a live system backplane or other "hot" power sources. The LM25069 provides in-rush current control to limit system voltage droop and transients. The current limit and power dissipation in the external series pass NChannel MOSFET are programmable, ensuring operation within the Safe Operating Area (SOA). The POWER GOOD output ...