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National Semiconductor's complete system protection and management solutions deliver high system reliability. The LM(2)506x family of analog and digital hot swap controllers provide both current and power limiting to dynamically adjust the current limit at large VDS to ensure the MOSFET stays in the Safe Operating Area (SOA) – maximizing long-term system reliability and robustness. These intelligent hot swap devices feature system diagnostic and telemetry reporting which enables the system to take immediate action to control or optimize power delivery. The LM505x family of OR-ing FET controllers allows MOSFETs to replace diode rectifiers in power distribution networks thus reducing both power loss and voltage drops while providing best-in-class reverse current protection.
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System Protection & Management with Hot Swap Controller |
- — +48V System Power Management and Protection IC with PMBus
- — Negative System Power Management and Protection IC with PMBus
- Input voltage range: +10V to +80V (-10V to -80V for LM5064)
- Programmable 26 mV or 50 mV Current and Power Limiting
- Configurable Circuit Breaker protection for hard shorts
- Configurable Under-Voltage and Over-Voltage protection
- Remote temperature sensing with programmable warning and shutdown thresholds
- Detection and notification of damaged MOSFET condition
- Real time monitoring of VIN, VOUT, IIN, PIN, VAUX
- Simultaneous sampling of voltage and current for accurate power measurement
- Averaging of VIN, IIN, PIN, and VOUT over programmable interval
- Power measurement accuracy: ±4.5% over temperature
- Programmable WARN and FAULT thresholds with SMBA notification
- Black box capture of telemetry measurements and device status triggered by WARN or FAULT condition
- I2C/SMBus interface and PMBus compliant command structure
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Also watch LM5066/64 Lab Demo Video |
Hot Swap Controllers
OR-ing FET Controllers
Design Information
Selection Guide
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