Specification	LTC4252BCMS-1#TRPBF

Applications	-48 V
Current - Supply	800 çA
Features	Latched Fault
Internal Switch(s)	False
Mounting Type	Surface Mount
Number of Channels [custom]	1
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Programmable Features	Current Limit, OVP, UVLO, Fault Timeout
Supplier Device Package	10-MSOP
Type	Hot Swap Controller

LTC4252BLTC4252C Series

Negative Voltage Hot Swap Controllers

Part	Mounting Type	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Applications	Number of Channels [custom]	Features	Package / Case	Programmable Features	Current - Supply	Type	Package / Case
Analog Devices Inc./Maxim Integrated LTC4252BCMS-1#TRPBF	Surface Mount	10-MSOP	70 °C	0 °C	-48 V	1	Latched Fault	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	Current Limit Fault Timeout OVP UVLO	800 çA	Hot Swap Controller
Analog Devices Inc./Maxim Integrated LTC4252BCMS8-2#TRPBF	Surface Mount	8-MSOP	70 °C	0 °C	-48 V	1	Auto Retry	8-MSOP 8-TSSOP	Current Limit Fault Timeout OVP UVLO	800 çA	Hot Swap Controller	0.118 in 3 mm Width
Analog Devices Inc./Maxim Integrated LTC4252CIMS-2#PBF	Surface Mount	10-MSOP	85 °C	-40 C	-48 V	1	Auto Retry	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	Current Limit Fault Timeout OVP UVLO	900 µA	Hot Swap Controller
Analog Devices Inc./Maxim Integrated LTC4252BCMS-1#PBF	Surface Mount	10-MSOP	70 °C	0 °C	-48 V	1	Latched Fault	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	Current Limit Fault Timeout OVP UVLO	800 çA	Hot Swap Controller
Analog Devices Inc./Maxim Integrated LTC4252CCMS-2#TRPBF	Surface Mount	10-MSOP	70 °C	0 °C	-48 V	1	Auto Retry	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	Current Limit Fault Timeout OVP UVLO	900 µA	Hot Swap Controller
Analog Devices Inc./Maxim Integrated LTC4252BIMS8-1#TRPBF	Surface Mount	8-MSOP	85 °C	-40 C	-48 V	1	Latched Fault	8-MSOP 8-TSSOP	Current Limit Fault Timeout OVP UVLO	800 çA	Hot Swap Controller	0.118 in 3 mm Width
Analog Devices Inc./Maxim Integrated LTC4252BIMS-1#PBF	Surface Mount	10-MSOP	85 °C	-40 C	-48 V	1	Latched Fault	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	Current Limit Fault Timeout OVP UVLO	800 çA	Hot Swap Controller
Analog Devices Inc./Maxim Integrated LTC4252CIMS-1#TRPBF	Surface Mount	10-MSOP	85 °C	-40 C	-48 V	1	Latched Fault	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	Current Limit Fault Timeout OVP UVLO	900 µA	Hot Swap Controller
Analog Devices Inc./Maxim Integrated LTC4252CCMS-1#TRPBF	Surface Mount	10-MSOP	70 °C	0 °C	-48 V	1	Latched Fault	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	Current Limit Fault Timeout OVP UVLO	900 µA	Hot Swap Controller
Analog Devices Inc./Maxim Integrated LTC4252BIMS-2#TRPBF	Surface Mount	10-MSOP	85 °C	-40 C	-48 V	1	Auto Retry	10-TFSOP 10-MSOP (0.118" 3.00mm Width)	Current Limit Fault Timeout OVP UVLO	800 çA	Hot Swap Controller

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	$ 3.55	1m+

Description

General part information

LTC4252BLTC4252C Series

The LTC4252 negative voltage Hot Swap™controller allows a board to be safely inserted and removed from a live backplane. Output current is controlled by three stages of current limiting: a timed circuit breaker, active current limiting and a fast feedforward path that limits peak current under worst-case catastrophic fault conditions.Adjustable undervoltage and overvoltage detectors disconnect the load whenever the input supply exceeds the desired operating range. The LTC4252’s supply input is shunt regulated, allowing safe operation with very high supply voltages. A multifunction timer delays initial startup and controls the circuit breaker’s response time. The circuit breaker’s response time is accelerated by sensing excessive MOSFET drain voltage, keeping the MOSFET within its safe operating area (SOA). An adjustable softstart circuit controls MOSFET inrush current at start-up.The LTC4252-2 provides automatic retry after a fault. The LTC4252C-1/LTC4252C-2 feature tight ±1% undervoltage/ overvoltage threshold accuracy. The LTC4252 is available in either an 8-pin or 10-pin MSOP.The LTC4252B and LTC4252C improve the ruggedness of the shunt regulator in the LTC4252 and LTC4252A.UV/OV %Latch Off/RetryPackageLTC4252-14.6%Latch offMS-8, MS-10LTC4252-24.8%RetryMS-8, MS-10LTC4252A-11%Latch offMS-10LTC4252A-21%RetryMS-10LTC4252B-14.6%Latch offMS-8, MS-10LTC4252B-24.6%RetryMS-8, MS-10LTC4252C-11%Latch offMS-10LTC4252C-21%RetryMS-10ApplicationsHot Board InsertionElectronic Circuit Breaker–48V Distributed Power SystemsNegative Power Supply ControlCentral Office SwitchingHigh Availability ServersATCA

Documents

Technical documentation and resources

LTC4252BCMS-1#TRPBF | Datasheet

Datasheet

R427 Reliability Data

Reliability Data