LM25069PMMX-2/NOPB ,Positive Low Voltage Power Limiting Hot Swap Controller 10-VSSOP -40 to 85FEATURES APPLICATIONS2• Operating R ange: +2.9V to +17V • Server Backplane Systems• In-rush Current ..
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LM25069PMMX-2/NOPB
Positive Low Voltage Power Limiting Hot Swap Controller
UVLO/EN
OVLO
PWRGNDTIMER
OUTVIN SENSE GATE
LM25069VOUTVSYS
Circuit Breaker Function for Severe Over- DESCRIPTIONCurrent EventsThe LM25069 positive hot swap controller
• Internal High Side Charge Pump and Gateintelligent controlof the power supply the
Driver for External N-channel MOSFET load during insertion and removalof
• Adjustable Under-Voltage Lockout (UVLO) and a live system backplaneor other "hot"
Hysteresis The LM25069 provides in-rush current
Adjustable Over-Voltage Lockout (OVLO) and system voltage droop and transients.
and power dissipationin the external N-
HysteresisChannel MOSFET are programmable,
• Initial Insertion Timer Allows Ringing and operation within the Safe Operating
Transientsto Subside After System POWER GOOD output indicates when
Connection voltageis within 1.3Vof the input voltage.
• Programmable Fault Timer Avoids Nuisance under-voltage and over-voltage lockout
Trips hysteresis are programmable, as well
insertion delay time and fault detection
• Active High Open Drain POWER GOOD Output LM25069-1 latches off aftera fault
• Availablein Latched Fault and Automatic the LM25069-2 automatically restarts
Restart Versions cycle. The LM25069is availablein
package.
Typical Application1. Positive Power Supply Control