LM5068MM-2 ,Negative Voltage Hot Swap ControllerLM5068 Negative Voltage Hot Swap ControllerDecember 2004LM5068Negative Voltage Hot Swap Controller
LM5068MM-2 ,Negative Voltage Hot Swap ControllerFeaturesn Safe module insertion and removal from live backplanesThe LM5068 hot-swap controller prov ..
LM5068MM-2 ,Negative Voltage Hot Swap ControllerApplicationsThe LM5068 is available in a MSOP-8 package.n - 48V Power Modulesn Central Office Switc ..
LM5068MMX-2 ,Negative Voltage Hot Swap ControllerFeaturesn Safe module insertion and removal from live backplanesThe LM5068 hot-swap controller prov ..
LM5069MM-2 ,Positive High Voltage Hot Swap / Inrush Current Controller with Power Limiting 10-VSSOP -40 to 125Maximum Ratings for VIN(100 V) applies only when the LM5069 is disabled, or for a momentary surge t ..
LM5069MM-2 ,Positive High Voltage Hot Swap / Inrush Current Controller with Power Limiting 10-VSSOP -40 to 125Features 2 Applications1• Wide Operating Range: 9 V to 80 V • Server Backplane Systems• In-Rush Cur ..
LP2988IMM-3.2 ,Micropower, 200 mA Ultra Low-Dropout Low Noise Voltage Regulator with Programmable Power-On Reset DelayApplicationsError Flag/Reset: The error flag goes low when the outputn Cellular Phonedrops approxim ..
LP2988IMM-3.3 ,Micropower, 200 mA Ultra Low-Dropout Low Noise Voltage Regulator with Programmable Power-On Reset DelayFeaturesn Ultra low dropout voltageThe LP2987/8 are fixed-output 200 mA precision LDO volt-age regu ..
LP2988IMM-3.8 ,Micropower, 200 mA Ultra Low-Dropout Low Noise Voltage Regulator with Programmable Power-On Reset DelayApplicationsError Flag/Reset: The error flag goes low when the outputn Cellular Phonedrops approxim ..
LP2988IMM-5.0 ,Micropower, 200 mA Ultra Low-Dropout Low Noise Voltage Regulator with Programmable Power-On Reset DelayLP2987/LP2988 Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with ProgrammablePower-On Rese ..
LP2988IMM-5.0 ,Micropower, 200 mA Ultra Low-Dropout Low Noise Voltage Regulator with Programmable Power-On Reset DelayLP2987/LP2988 Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with ProgrammablePower-On Rese ..
LP2988IMM-5.0/NOPB ,Micropower, 200 mA Ultra Low-Dropout Low Noise Voltage Regulator with Prog. Power-On Reset Delay 8-VSSOP -40 to 125Connection Diagram (LP2987)Figure 1. Top ViewSOIC-8/VSSOP-8 PackageSurface Mount PackagesSee Packag ..
LM5068MM-2-LM5068MMX-2
Negative Voltage Hot Swap Controller
LM5068
Negative V oltage Hot Swap Controller
General DescriptionThe LM5068 hot-swap controller provides intelligent control power supply connections during the insertion and re-
movalof circuit cards poweredby live system backplanes.
The LM5068 provides both in-rush current control and short-
circuit protection functions, and limits power supply tran-
sientsinthe backplane causedbythe insertionof additional
circuit cards. The LM5068 controls the external N-Channel
MOSFETto provide programmable load current limiting and
circuit breaker functions usinga single external current
sense resistor. The LM5068 issuesa power good (PWRGD)
signalatthe conclusionofa successful power-on sequence.
Input over-voltageor under -voltage fault conditionswill can-
celthe PWRGD indication.
The LM5068-1 and-2 indicate power-goodasan open-drain
active HIGH PWRGD state. The LM5068-3 and-4 indicate
power-goodasan open-drain active LOW PWRGD state.
The LM5068-1 and-3 latchoff aftera fault conditionis
detected while the LM5068-2 and-4 continuously re-tryat
intervalssetbya programmable timer.
The LM5068is availableina MSOP-8 package.
Features Safe module insertion and removal from live backplanes In-rush current limitingfor safe board insertion into live
backplanes Fast responseto over-current fault conditions with active
current limiting -10Vto -90V input range Programmable under-voltage/over-voltage shutdown
protection with adjustable hysteresis Programmable multi-function timerfor board insertion
de-bounce delay Fault timer avoids nuisance trips causedby short
duration load transients Active gate clamping during initial power application Availablein both latched fault and automatic re-try
versions Available with either active HIGHor active LOW power
good flag
Applications- 48V Power Modules Central Office Switching Distributed Power Systems Electronic Circuit Breaker PBX Systems Negative Power Supply Control
Typical ApplicationNegative Power Supply Control
December 2004
LM5068
Negative
oltage
Hot
Swap
Controller
