(Hong Kong)
Product Summary
The LT4256-3CGN#TR is a high voltage Hot Swap (TM) controller that allows a board to be safely inserted and removed from a live backplane. An internal driver of the LT4256-3CGN#TR controls the high side N-channel MOSFET gate for supply voltages ranging from 10.8V to 80V. The LT4256-3CGN#TR features an open-circuit detect (OPEN) output that indicates abnormally low load current conditions. Applications of the LT4256-3CGN#TR include: hot board insertion, electronic circuit breaker/power bussing, industrial high side switch/circuit breaker, 24V/48V industrial/alarm systems, ideally suited for 12V, 24V and 48V distributed power systems, 48V telecom systems.
Parametrics
LT4256-3CGN#TR maximum ratings: (1) Supply Voltage (Vcc ) : -0.3 to 100V; (2) SENSE, PWRGD: -0.3 to 100V; (3)ATE Voltage: -0.3V to Vcc +10V (An internal clamp limits the GATE pin to a minimum of 10V above Vcc Driving this pin to a voltage beyond the clamp voltage may damage the part); (3) GATE Maximum Current: 200μA; (4) Vout: -3V to 100V; (5) FB, UV, OPEN: -0.3 to 44V; (6) Ov: -0.3 to 18V; (7) RETRY: -0.3 to 15V; (8) TIMER Voltage: -0.3V to 4.3 V; (9)Maximum Input Current (TIMER) : 100μA; (10) Operating Temperature: 0°C to 70°C ; (11) Storage Temperature Range: -65°C to 150°C; (12) Lead Temperature (Soldering, 10 sec): 300°C.
Features
LT4256-3CGN#TR features: (1) Allows Safe Board Insertion and Removal from a Live Backplane; (2) Controls Supply Voltage from 10.8V to 80V; (3) Foldback Current Limiting; (4) Open Circuit and Overcurrent Fault Detect; (5) Drives an External N-Channel MOSFET; (6) Automatic Retry or Latched Off Operation After Overcurrent Fault; (7) Programmable Supply Voltage Power-Up Rate; (8) Open MOSFET Detection; (9) 1% Over and Undervoltage Detection Accuracy; (10)Available in a 16-Lead SSOP Package.
Diagrams
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 LT4256-3CGN#TR |
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IC CTRLR HOTSWP HV DETECT 16SSOP |
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LT4256-3CGN#TRPBF |
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IC CTRLR HOTSWP HV DETECT 16SSOP |
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