LTC4224-1LTC4224-2 Series

Compact Dual Low Voltage Hot Swap Controller

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

Compact Dual Low Voltage Hot Swap Controller

Part	Supplier Device Package	Applications	Programmable Features	Current - Supply	Mounting Type	Features	Type	Number of Channels	Package / Case	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Max]	Operating Temperature [Min]
Analog Devices Inc./Maxim Integrated LTC4224CDDB-2#TRPBF	10-DFN (3x2)	General Purpose	Current Limit Slew Rate	1.4 mA	Surface Mount	Auto Retry Fault Timeout UVLO	Hot Swap Controller	2	10-WFDFN Exposed Pad	1 V	6 V	70 °C	0 °C
Analog Devices Inc./Maxim Integrated LTC4224IDDB-2#TRMPBF	10-DFN (3x2)	General Purpose	Current Limit Slew Rate	1.4 mA	Surface Mount	Auto Retry Fault Timeout UVLO	Hot Swap Controller	2	10-WFDFN Exposed Pad	1 V	6 V	85 °C	-40 C
Analog Devices Inc./Maxim Integrated LTC4224IDDB-2#TRPBF	10-DFN (3x2)	General Purpose	Current Limit Slew Rate	1.4 mA	Surface Mount	Auto Retry Fault Timeout UVLO	Hot Swap Controller	2	10-WFDFN Exposed Pad	1 V	6 V	85 °C	-40 C
Analog Devices Inc./Maxim Integrated LTC4224IDDB-1#TRMPBF	10-DFN (3x2)	General Purpose	Current Limit Slew Rate	1.4 mA	Surface Mount	Fault Timeout Latched Fault UVLO	Hot Swap Controller	2	10-WFDFN Exposed Pad	1 V	6 V	85 °C	-40 C
Analog Devices Inc./Maxim Integrated LTC4224IMS-2#PBF	10-MSOP	General Purpose	Current Limit Slew Rate	1.4 mA	Surface Mount	Auto Retry Fault Timeout UVLO	Hot Swap Controller	2	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	1 V	6 V	85 °C	-40 C
Analog Devices Inc./Maxim Integrated LTC4224IDDB-1#TRPBF	10-DFN (3x2)	General Purpose	Current Limit Slew Rate	1.4 mA	Surface Mount	Fault Timeout Latched Fault UVLO	Hot Swap Controller	2	10-WFDFN Exposed Pad	1 V	6 V	85 °C	-40 C
Analog Devices Inc./Maxim Integrated LTC4224CMS-1#TRPBF	10-MSOP	General Purpose	Current Limit Slew Rate	1.4 mA	Surface Mount	Fault Timeout Latched Fault UVLO	Hot Swap Controller	2	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	1 V	6 V	70 °C	0 °C
Analog Devices Inc./Maxim Integrated LTC4224CDDB-1#TRMPBF	10-DFN (3x2)	General Purpose	Current Limit Slew Rate	1.4 mA	Surface Mount	Fault Timeout Latched Fault UVLO	Hot Swap Controller	2	10-WFDFN Exposed Pad	1 V	6 V	70 °C	0 °C
Analog Devices Inc./Maxim Integrated LTC4224CDDB-2#TRMPBF	10-DFN (3x2)	General Purpose	Current Limit Slew Rate	1.4 mA	Surface Mount	Auto Retry Fault Timeout UVLO	Hot Swap Controller	2	10-WFDFN Exposed Pad	1 V	6 V	70 °C	0 °C
Analog Devices Inc./Maxim Integrated LTC4224CMS-2#PBF	10-MSOP	General Purpose	Current Limit Slew Rate	1.4 mA	Surface Mount	Auto Retry Fault Timeout UVLO	Hot Swap Controller	2	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	1 V	6 V	70 °C	0 °C

Catalog

Compact Dual Low Voltage Hot Swap Controller

Description

The LTC4224 Dual Low Voltage Hot Swap™controller allows a board to be safely inserted and removed from a live backplane. It controls two supplies with external N-channel MOSFETs and operates with one supply as low as 1V provided the other supply is 2.7V or greater. The LTC4224 can ramp up the supplies in any order and at adjustable ramp rates. To minimize the number of external components and PCB area, the gate capacitor is optional, all timing delays are generated internally, and theONpins have integrated pull-up currents.Protection against overcurrent faults is provided by a fast-acting current limit and timed circuit breakers. AFAULTpin signals overcurrent faults. The LTC4224-1 remains off after a fault, while the LTC4224-2 automatically tries to apply power again after a four second cool-down period.ApplicationsOptical NetworkingLow Voltage Hot SwapElectronic Circuit Breakers