LTC4244 Series

Rugged, CompactPCI Bus Hot Swap Controllers

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

Rugged, CompactPCI Bus Hot Swap Controllers

Part	Number of Channels [custom]	Features	Current - Output (Max)	Supplier Device Package	Programmable Features	Voltage - Supply	Type	Mounting Type	Package / Case [x]	Package / Case [y]	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Applications	Internal Switch(s)
Analog Devices Inc./Maxim Integrated LTC4244IGN-1#TRPBF	4	Latched Fault Thermal Limit UVLO	100 mA 500 mA	20-SSOP	Current Limit Fault Timeout	3.3 V 5 VDC 12 V	Hot Swap Controller	Surface Mount	0.154 in	3.9 mm	20-SSOP	85 °C	-40 C	CompactPCI™	Both
Analog Devices Inc./Maxim Integrated LTC4244CGN-1#TRPBF	4	Latched Fault Thermal Limit UVLO	100 mA 500 mA	20-SSOP	Current Limit Fault Timeout	3.3 V 5 VDC 12 V	Hot Swap Controller	Surface Mount	0.154 in	3.9 mm	20-SSOP	70 °C	0 °C	CompactPCI™	Both
Analog Devices Inc./Maxim Integrated LTC4244IGN#TRPBF	4	Latched Fault Thermal Limit UVLO	100 mA 500 mA	20-SSOP	Current Limit Fault Timeout	3.3 V 5 VDC 12 V	Hot Swap Controller	Surface Mount	0.154 in	3.9 mm	20-SSOP	85 °C	-40 C	CompactPCI™	Both
Analog Devices Inc./Maxim Integrated LTC4244CGN#PBF	4	Latched Fault Thermal Limit UVLO	100 mA 500 mA	20-SSOP	Current Limit Fault Timeout	3.3 V 5 VDC 12 V	Hot Swap Controller	Surface Mount	0.154 in	3.9 mm	20-SSOP	70 °C	0 °C	CompactPCI™	Both
Analog Devices Inc./Maxim Integrated LTC4244CGN-1#PBF	4	Latched Fault Thermal Limit UVLO	100 mA 500 mA	20-SSOP	Current Limit Fault Timeout	3.3 V 5 VDC 12 V	Hot Swap Controller	Surface Mount	0.154 in	3.9 mm	20-SSOP	70 °C	0 °C	CompactPCI™	Both
Analog Devices Inc./Maxim Integrated LTC4244CGN#TRPBF	4	Latched Fault Thermal Limit UVLO	100 mA 500 mA	20-SSOP	Current Limit Fault Timeout	3.3 V 5 VDC 12 V	Hot Swap Controller	Surface Mount	0.154 in	3.9 mm	20-SSOP	70 °C	0 °C	CompactPCI™	Both
Analog Devices Inc./Maxim Integrated LTC4244IGN#PBF	4	Latched Fault Thermal Limit UVLO	100 mA 500 mA	20-SSOP	Current Limit Fault Timeout	3.3 V 5 VDC 12 V	Hot Swap Controller	Surface Mount	0.154 in	3.9 mm	20-SSOP	85 °C	-40 C	CompactPCI™	Both
Analog Devices Inc./Maxim Integrated LTC4244IGN-1#PBF	4	Latched Fault Thermal Limit UVLO	100 mA 500 mA	20-SSOP	Current Limit Fault Timeout	3.3 V 5 VDC 12 V	Hot Swap Controller	Surface Mount	0.154 in	3.9 mm	20-SSOP	85 °C	-40 C	CompactPCI™	Both

Catalog

Rugged, CompactPCI Bus Hot Swap Controllers

Description

The LTC4244/LTC4244-1 are Hot Swap™controllers that allow a board to be safely inserted into and removed from a CompactPCI™bus slot. External N-channel transistors control the 5V and 3.3V supplies while on-chip switches control the ±12V supplies. The 3.3V and 5V supplies can be ramped up at an adjustable rate. Electronic circuit breakers protect all four supplies against overcurrent faults. After the power-up cycle is complete, the TIMER pin capacitor serves as auxiliary VCCallowing the LTC4244/LTC4244-1 to function without interruption in the presence of voltage spikes on the 12VINsupply. ThePWRGDoutput indicates when all four supplies are within tolerance. The OFF/ONpin is used to cycle board power or reset the circuit breaker. The PRECHARGE output can be used to bias the bus I/O pins during card insertion and extraction. PCI_RST# is combined on-chip with HEALTHY# in order to generate LOCAL_PCI_RST#.ApplicationsHot Board Insertion into CompactPCI Bus