LTC1643A Series

PCI-Bus Hot Swap Controller

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

PCI-Bus Hot Swap Controller

Part	Features	Voltage - Supply	Voltage - Supply	Internal Switch(s)	Operating Temperature (Max)	Operating Temperature (Min)	Type	Applications	Current - Output (Max) Options	Package Width	Package Name	Package Length	Mounting Type	Programmable Features	Number of Channels
Analog Devices Inc./Maxim Integrated LTC1643AL-1CGN#PBF	Latched Fault Thermal Limit UVLO	3.3 V 5 VDC 12 VDC	±12V 3.3V 5V	Both	70 °C	0 °C	Hot Swap Controller	CompactPCI™	200mA 500mA	3.9 mm	16-SSOP	0.154 in	Surface Mount	Current Limit Fault Timeout Slew Rate	4
Analog Devices Inc./Maxim Integrated LTC1643AHCGN#TRPBF	Latched Fault Thermal Limit UVLO	3.3 V 5 VDC 12 VDC	±12V 3.3V 5V	Both	70 °C	0 °C	Hot Swap Controller	Motherboard	200mA 500mA	3.9 mm	16-SSOP	0.154 in	Surface Mount	Current Limit Fault Timeout Slew Rate	4
Analog Devices Inc./Maxim Integrated LTC1643ALCGN#TRPBF	Latched Fault Thermal Limit UVLO	3.3 V 5 VDC 12 VDC	±12V 3.3V 5V	Both	70 °C	0 °C	Hot Swap Controller	CompactPCI™	200mA 500mA	3.9 mm	16-SSOP	0.154 in	Surface Mount	Current Limit Fault Timeout Slew Rate	4
Analog Devices Inc./Maxim Integrated LTC1643ALIGN#PBF	Latched Fault Thermal Limit UVLO	3.3 V 5 VDC 12 VDC	±12V 3.3V 5V	Both	85 °C	-40 °C	Hot Swap Controller	CompactPCI™	200mA 500mA	3.9 mm	16-SSOP	0.154 in	Surface Mount	Current Limit Fault Timeout Slew Rate	4
Analog Devices Inc./Maxim Integrated LTC1643AHIGN#TRPBF	Latched Fault Thermal Limit UVLO	3.3 V 5 VDC 12 VDC	±12V 3.3V 5V	Both	85 °C	-40 °C	Hot Swap Controller	Motherboard	200mA 500mA	3.9 mm	16-SSOP	0.154 in	Surface Mount	Current Limit Fault Timeout Slew Rate	4
Analog Devices Inc./Maxim Integrated LTC1643AHCGN#PBF	Latched Fault Thermal Limit UVLO	3.3 V 5 VDC 12 VDC	±12V 3.3V 5V	Both	70 °C	0 °C	Hot Swap Controller	Motherboard	200mA 500mA	3.9 mm	16-SSOP	0.154 in	Surface Mount	Current Limit Fault Timeout Slew Rate	4
Analog Devices Inc./Maxim Integrated LTC1643AL-1CGN#TRPBF	Latched Fault Thermal Limit UVLO	3.3 V 5 VDC 12 VDC	±12V 3.3V 5V	Both	70 °C	0 °C	Hot Swap Controller	CompactPCI™	200mA 500mA	3.9 mm	16-SSOP	0.154 in	Surface Mount	Current Limit Fault Timeout Slew Rate	4
Analog Devices Inc./Maxim Integrated LTC1643ALIGN#TRPBF	Latched Fault Thermal Limit UVLO	3.3 V 5 VDC 12 VDC	±12V 3.3V 5V	Both	85 °C	-40 °C	Hot Swap Controller	CompactPCI™	200mA 500mA	3.9 mm	16-SSOP	0.154 in	Surface Mount	Current Limit Fault Timeout Slew Rate	4
Analog Devices Inc./Maxim Integrated LTC1643AHIGN#PBF	Latched Fault Thermal Limit UVLO	3.3 V 5 VDC 12 VDC	±12V 3.3V 5V	Both	85 °C	-40 °C	Hot Swap Controller	Motherboard	200mA 500mA	3.9 mm	16-SSOP	0.154 in	Surface Mount	Current Limit Fault Timeout Slew Rate	4
Analog Devices Inc./Maxim Integrated LTC1643AL-1IGN#TRPBF	Latched Fault Thermal Limit UVLO	3.3 V 5 VDC 12 VDC	±12V 3.3V 5V	Both	85 °C	-40 °C	Hot Swap Controller	CompactPCI™	200mA 500mA	3.9 mm	16-SSOP	0.154 in	Surface Mount	Current Limit Fault Timeout Slew Rate	4

Catalog

PCI-Bus Hot Swap Controller

Description

The LTC1643A 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. ThePWRGDoutput indicates when all of the supply voltages are within tolerance and theFAULToutput indicates an overcurrent condition. The ON(LTC1643AH)/ON(LTC1643AL/ LTC1643AL-1) pin is used to cycle the board power or reset the circuit breaker. The LTC1643AL-1 has the ±12V power good comparators disabled.The LTC1643A is available in a 16-pin narrow SSOP package.ApplicationsPCI-Based ServersCompactPCI Compliant Boards