(Hong Kong)
Product Summary
The LTC1643AHCGN#TR is a Hot Swap controller that allows a board to be safely inserted and removed from a live PCI-Bus slot. Two external N-channel transistors control the 3.3V and 5V supplies while on-chip switches control the -12V and 12V supplies. All supply voltages can be ramped up at a programmable rate. An electronic circuit breaker protects all four supplies against overcurrent faults. The foldback current limit feature limits current spikes and power dissipation when shorts occur and allows boards with large capacitances to be powered up without tripping the circuit breaker. The application s of the LTC1643AHCGN#TR include PCI-Based Servers, CompactPCI Compliant Boards.
Parametrics
LTC1643AHCGN#TR absolute maximum ratings: (1)Supply Voltages, 12VIN: 13.2V; VEEIN: -13.2V; (2)Input Voltage (Pin 5): -0.3V to (12VIN + 0.3V); (3)Output Voltages (Pins 6, 7): -0.3V to (12VIN + 0.3V); (4)Analog Voltages (Pins 3, 4, 9, 10 to 14): -0.3V to (12VIN + 0.3V); (5)VEEOUT: -13.2V to + 0.3V; (6)12VOUT: -0.3V to 13.2V; (7)Operating Temperature Range: -40℃ to 85℃; (8)Storage Temperature Range: -65℃ to 150℃; (9)Lead Temperature (Soldering, 10 sec): 300℃.
Features
LTC1643AHCGN#TR features: (1)Allows Safe Board Insertion and Removal from a Live PCI Slot; (2)Works on either a Motherboard (LTC1643AH) or CompactPCI Card (LTC1643AL/LTC1643AL-1); (3)Controls –12V, 3.3V, 5V, 12V Supplies; (4)Programmable Foldback Current Limit with Circuit Breaker; (5)User-Programmable Supply Voltage Power-Up Rate; (6)High Side Drive for External N-Channel MOSFETs; (7)-12V and 12V On-Chip Switches; (8)Fault and Power-Good Outputs; (9)Available in a Narrow 16-Lead SSOP Package.
Diagrams
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 LTC1643AHCGN#TR |
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IC CTRLR HOTSWAP PCI BUS 16SSOP |
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LTC1643AHCGN#TRPBF |
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IC CTRLR HOTSWAP PCI BUS 16SSOP |
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