Specification	LTC1644IGN#PBF

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

LTC1644 Series

Part	Current - Output (Max)	Applications	Mounting Type	Supplier Device Package	Package / Case [x]	Package / Case [y]	Package / Case	Features	Operating Temperature [Max]	Operating Temperature [Min]	Internal Switch(s)	Programmable Features	Type	Voltage - Supply	Number of Channels [custom]
Analog Devices Inc./Maxim Integrated LTC1644CGN#TRPBF	100 mA 500 mA	CompactPCI™	Surface Mount	20-SSOP	0.154 in	3.9 mm	20-SSOP	Latched Fault Thermal Limit UVLO	70 °C	0 °C	Both	Current Limit Fault Timeout	Hot Swap Controller	3.3 V 5 VDC 12 V	4
Analog Devices Inc./Maxim Integrated LTC1644IGN#TRPBF	100 mA 500 mA	CompactPCI™	Surface Mount	20-SSOP	0.154 in	3.9 mm	20-SSOP	Latched Fault Thermal Limit UVLO	85 °C	-40 C	Both	Current Limit Fault Timeout	Hot Swap Controller	3.3 V 5 VDC 12 V	4
Analog Devices Inc./Maxim Integrated LTC1644CGN#PBF	100 mA 500 mA	CompactPCI™	Surface Mount	20-SSOP	0.154 in	3.9 mm	20-SSOP	Latched Fault Thermal Limit UVLO	70 °C	0 °C	Both	Current Limit Fault Timeout	Hot Swap Controller	3.3 V 5 VDC 12 V	4
Analog Devices Inc./Maxim Integrated LTC1644IGN#PBF	100 mA 500 mA	CompactPCI™	Surface Mount	20-SSOP	0.154 in	3.9 mm	20-SSOP	Latched Fault Thermal Limit UVLO	85 °C	-40 C	Both	Current Limit Fault Timeout	Hot Swap Controller	3.3 V 5 VDC 12 V	4

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	N/A	0	$ 12.63	1m+

Description

General part information

LTC1644 Series

The LTC1644 is a Hot Swap™controller that allows a board to be safely inserted and removed from a CompactPCI bus slot. External N-channel transistors control the 3.3V/5V supplies, while on-chip switches control the –12V and 12V supplies. The 3.3V and 5V supplies can be ramped up at a programmable rate. Electronic circuit breakers protect all four supplies against overcurrent faults. ThePWRGDoutput indicates when all of the supply voltages are within tolerance. The OFF/ONpin is used to cycle the 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

Documents

Technical documentation and resources

LTC1644IGN#PBF | Datasheet

Datasheet

R318 Reliability Data

Reliability Data