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Final Electrical Specifications
LTC1921 Dual –48V Supply and Fuse Monitor
FEATURES
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May 2002
DESCRIPTIO
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Independently Monitors Two –48V Supplies for – Undervoltage Faults: –38.5V ±1VMAX – Overvoltage Faults: –70V ±1.5VMAX Accurately Detects Undervoltage Fault Recovery: –43V ±0.5VMAX Monitors Two External Fuses Operates from –10V to –80V Tolerates DC Faults to –100V Tolerates Accidental Supply Reversal to 100V Withstands Transient Voltages Up to 200V/–200V Small Footprint: 8-Lead MSOP Package Requires No Precision External Components Specified from – 40°C to 85°C
The LTC®1921 monitors two independent – 48V supplies, including their fuses, and drives up to three optoisolators to indicate status, in accordance with standard backplane specifications.
LTC1921 Datasheet
