
LM25061 Series
2.9-V to 17-V hot swap controller with power limiting, power good, and overvoltage protection
Manufacturer: Texas Instruments
Catalog
2.9-V to 17-V hot swap controller with power limiting, power good, and overvoltage protection
Key Features
• Operating Range: +2.9V to +17VIn-rush Current Limit for Safe Board Insertion into Live Power SourcesProgrammable Maximum Power Dissipation in the External Pass DeviceAdjustable Current LimitCircuit Breaker Function for Severe Over-Current EventsInternal High Side Charge Pump and Gate Driver for External N-Channel MOSFETAdjustable Under-Voltage Lockout (UVLO) and HysteresisAdjustable Output Voltage Monitoring and HysteresisInitial Insertion Timer Allows Ringing and Transients to Subside After System ConnectionProgrammable Fault Timer Avoids Nuisance TripsActive High Open Drain POWER GOOD OutputAvailable in Latched Fault and Automatic Restart VersionsPackageVSSOP-10Operating Range: +2.9V to +17VIn-rush Current Limit for Safe Board Insertion into Live Power SourcesProgrammable Maximum Power Dissipation in the External Pass DeviceAdjustable Current LimitCircuit Breaker Function for Severe Over-Current EventsInternal High Side Charge Pump and Gate Driver for External N-Channel MOSFETAdjustable Under-Voltage Lockout (UVLO) and HysteresisAdjustable Output Voltage Monitoring and HysteresisInitial Insertion Timer Allows Ringing and Transients to Subside After System ConnectionProgrammable Fault Timer Avoids Nuisance TripsActive High Open Drain POWER GOOD OutputAvailable in Latched Fault and Automatic Restart VersionsPackageVSSOP-10
Description
AI
The LM25061 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 LM25061 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). The POWER GOOD output indicates when the output voltage exceeds a programmable threshold. The input under-voltage level and hysteresis are programmable, as well as the initial insertion delay time and fault detection time. The LM25061-1 latches off after a fault detection, while the LM25061-2 automatically restarts at a fixed duty cycle. The LM25061 is available in a 10 pin VSSOP package.
The LM25061 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 LM25061 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). The POWER GOOD output indicates when the output voltage exceeds a programmable threshold. The input under-voltage level and hysteresis are programmable, as well as the initial insertion delay time and fault detection time. The LM25061-1 latches off after a fault detection, while the LM25061-2 automatically restarts at a fixed duty cycle. The LM25061 is available in a 10 pin VSSOP package.