LTC4252BCMS8-2#PBF
ActiveNEGATIVE VOLTAGE HOT SWAP CONTROLLERS
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LTC4252BCMS8-2#PBF
ActiveNEGATIVE VOLTAGE HOT SWAP CONTROLLERS
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC4252BCMS8-2#PBF |
|---|---|
| Applications | -48 V |
| Current - Supply | 800 çA |
| Features | Auto Retry |
| 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 | 8-TSSOP, 8-MSOP |
| Package / Case | 0.118 in, 3 mm Width |
| Programmable Features | Current Limit, OVP, UVLO, Fault Timeout |
| Supplier Device Package | 8-MSOP |
| Type | Hot Swap Controller |
| Part | Internal Switch(s) | Type | Mounting Type | Number of Channels [custom] | Supplier Device Package | Operating Temperature [Max] | Operating Temperature [Min] | Features | Programmable Features | Current - Supply | Package / Case | Package / Case | Applications |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Analog Devices Inc./Maxim Integrated | Hot Swap Controller | Surface Mount | 1 | 8-MSOP | 70 °C | 0 °C | Latched Fault | Current Limit Fault Timeout OVP UVLO | 800 çA | 8-MSOP 8-TSSOP | 0.118 in 3 mm Width | -48 V | |
 Analog Devices Inc./Maxim Integrated | Hot Swap Controller | Surface Mount | 1 | 10-MSOP | 70 °C | 0 °C | Auto Retry | Current Limit Fault Timeout OVP UVLO | 800 çA | 10-TFSOP 10-MSOP (0.118" 3.00mm Width) | -48 V | ||
Analog Devices Inc./Maxim Integrated | Hot Swap Controller | Surface Mount | 1 | 10-MSOP | 70 °C | 0 °C | Auto Retry | Current Limit Fault Timeout OVP UVLO | 800 çA | 10-TFSOP 10-MSOP (0.118" 3.00mm Width) | -48 V | ||
Analog Devices Inc./Maxim Integrated | Hot Swap Controller | Surface Mount | 1 | 8-MSOP | 70 °C | 0 °C | Auto Retry | Current Limit Fault Timeout OVP UVLO | 800 çA | 8-MSOP 8-TSSOP | 0.118 in 3 mm Width | -48 V | |
 Analog Devices Inc./Maxim Integrated | Hot Swap Controller | Surface Mount | 1 | 10-MSOP | 85 °C | -40 C | Latched Fault | Current Limit Fault Timeout OVP UVLO | 800 çA | 10-TFSOP 10-MSOP (0.118" 3.00mm Width) | -48 V | ||
 Analog Devices Inc./Maxim Integrated | Hot Swap Controller | Surface Mount | 1 | 10-MSOP | 70 °C | 0 °C | Latched Fault | Current Limit Fault Timeout OVP UVLO | 900 µA | 10-TFSOP 10-MSOP (0.118" 3.00mm Width) | -48 V | ||
Analog Devices Inc./Maxim Integrated | Hot Swap Controller | Surface Mount | 1 | 8-MSOP | 70 °C | 0 °C | Latched Fault | Current Limit Fault Timeout OVP UVLO | 800 çA | 8-MSOP 8-TSSOP | 0.118 in 3 mm Width | -48 V | |
Analog Devices Inc./Maxim Integrated | Hot Swap Controller | Surface Mount | 1 | 10-MSOP | 85 °C | -40 C | Auto Retry | Current Limit Fault Timeout OVP UVLO | 800 çA | 10-TFSOP 10-MSOP (0.118" 3.00mm Width) | -48 V | ||
Analog Devices Inc./Maxim Integrated | Hot Swap Controller | Surface Mount | 1 | 10-MSOP | 85 °C | -40 C | Latched Fault | Current Limit Fault Timeout OVP UVLO | 900 µA | 10-TFSOP 10-MSOP (0.118" 3.00mm Width) | -48 V | ||
Analog Devices Inc./Maxim Integrated | Hot Swap Controller | Surface Mount | 1 | 8-MSOP | 70 °C | 0 °C | Auto Retry | Current Limit Fault Timeout OVP UVLO | 800 çA | 8-MSOP 8-TSSOP | 0.118 in 3 mm Width | -48 V |
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 | $ 3.27 | 1m+ |
| Tube | 200 | $ 3.27 | 1m+ | |
Description
General part information
LTC4252 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