Specification	LTC4240IGN#PBF

Applications	CompactPCI™
Current - Output (Max)	500 mA, 100 mA
Features	Thermal Limit, UVLO, I2C, 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	28-SSOP
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Programmable Features	Fault Timeout, Current Limit, Slew Rate
Supplier Device Package	28-SSOP
Type	Hot Swap Controller, Monitor
Voltage - Supply	3.3 V, 12 V, 5 VDC

LTC4240 Series

CompactPCI Hot Swap Controller with I2C Compatible Interface

Part	Mounting Type	Current - Output (Max)	Voltage - Supply	Applications	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case [x]	Package / Case [y]	Package / Case	Internal Switch(s)	Features	Supplier Device Package	Number of Channels [custom]	Programmable Features	Type
Analog Devices Inc./Maxim Integrated LTC4240IGN#PBF	Surface Mount	100 mA 500 mA	3.3 V 5 VDC 12 V	CompactPCI™	85 °C	-40 C	0.154 in	3.9 mm	28-SSOP	Both	I2C Latched Fault Thermal Limit UVLO	28-SSOP	4	Current Limit Fault Timeout Slew Rate	Hot Swap Controller Monitor
Analog Devices Inc./Maxim Integrated LTC4240IGN#TRPBF	Surface Mount	100 mA 500 mA	3.3 V 5 VDC 12 V	CompactPCI™	85 °C	-40 C	0.154 in	3.9 mm	28-SSOP	Both	I2C Latched Fault Thermal Limit UVLO	28-SSOP	4	Current Limit Fault Timeout Slew Rate	Hot Swap Controller Monitor
Analog Devices Inc./Maxim Integrated LTC4240CGN#PBF	Surface Mount	100 mA 500 mA	3.3 V 5 VDC 12 V	CompactPCI™	70 °C	0 °C	0.154 in	3.9 mm	28-SSOP	Both	I2C Latched Fault Thermal Limit UVLO	28-SSOP	4	Current Limit Fault Timeout Slew Rate	Hot Swap Controller Monitor
Analog Devices Inc./Maxim Integrated LTC4240CGN#TRPBF	Surface Mount	100 mA 500 mA	3.3 V 5 VDC 12 V	CompactPCI™	70 °C	0 °C	0.154 in	3.9 mm	28-SSOP	Both	I2C Latched Fault Thermal Limit UVLO	28-SSOP	4	Current Limit Fault Timeout Slew Rate	Hot Swap Controller Monitor

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	$ 9.43	1m+

Description

General part information

LTC4240 Series

The LTC4240 is a Hot Swap™controller that allows a board to be safely inserted and removed from a live CompactPCI bus slot. The LTC4240 has a built-in 2-wire I2C compatible interface to allow software control and monitoring of device function and power supply status. Two external N-channel transistors control the 3.3V and 5V supplies, while two internal switches control the –12V and 12V supplies. 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 I2C interface allows the user to turn the device off or on, setRESETOUT, turn on the status LED driver and ignore 12V, –12V faults. It also allows the user to read the status of theFAULT,RESETIN,RESETOUT,PWRGD, PRSNT1# and PRSNT2# pins. Under a fault condition, the I2C interface can also be used to determine which of the four supplies generated the fault. The LTC4240 is available in a 28-pin narrow SSOP package.ApplicationsHot Board Insertion into CompactPCI BusElectronic Circuit Breaker

Documents

Technical documentation and resources

LTC4240IGN#PBF | Datasheet

Datasheet

R427 Reliability Data

Reliability Data