LT4250LCN8#PBF
ActiveNEGATIVE 48V HOT SWAP CONTROLLER
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LT4250LCN8#PBF
ActiveNEGATIVE 48V HOT SWAP CONTROLLER
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Technical Specifications
Parameters and characteristics for this part
| Specification | LT4250LCN8#PBF |
|---|---|
| Applications | -48 V |
| Current - Supply | 1.6 mA |
| Features | Fault Timeout |
| Internal Switch(s) | False |
| Mounting Type | Through Hole |
| Number of Channels | 1 |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Package / Case | 0.3 in |
| Package / Case | 8-DIP |
| Package / Case | 7.62 mm |
| Programmable Features | OVP, UVLO, Current Limit, Latched Fault |
| Supplier Device Package | 8-PDIP |
| Type | Hot Swap Controller |
| Voltage - Supply [Max] | 18 V |
| Voltage - Supply [Min] | -80 V |
LT4250 Series
Negative 48V Hot Swap Controller
| Part | Mounting Type | Programmable Features | Number of Channels | Current - Supply | Voltage - Supply [Min] | Voltage - Supply [Max] | Package / Case | Package / Case | Package / Case | Applications | Operating Temperature [Max] | Operating Temperature [Min] | Type | Internal Switch(s) | Supplier Device Package | Features | Package / Case [y] | Package / Case [x] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices | Through Hole | Current Limit Latched Fault OVP UVLO | 1 | 1.6 mA | -80 V | 18 V | 0.3 in | 8-DIP | 7.62 mm | -48 V | 70 °C | 0 °C | Hot Swap Controller | 8-PDIP | Fault Timeout | |||
Analog Devices | Through Hole | Current Limit Latched Fault OVP UVLO | 1 | 1.6 mA | -80 V | 18 V | 0.3 in | 8-DIP | 7.62 mm | -48 V | 70 °C | 0 °C | Hot Swap Controller | 8-PDIP | Fault Timeout | |||
Analog Devices | Through Hole | Current Limit Latched Fault OVP UVLO | 1 | 1.6 mA | -80 V | 18 V | 0.3 in | 8-DIP | 7.62 mm | -48 V | 70 °C | 0 °C | Hot Swap Controller | 8-PDIP | Fault Timeout | |||
Analog Devices | Through Hole | Current Limit Latched Fault OVP UVLO | 1 | 1.6 mA | -80 V | 18 V | 0.3 in | 8-DIP | 7.62 mm | -48 V | 70 °C | 0 °C | Hot Swap Controller | 8-PDIP | Fault Timeout | |||
Analog Devices | Surface Mount | Current Limit Latched Fault OVP UVLO | 1 | 1.6 mA | -80 V | 18 V | 8-SOIC | -48 V | 85 °C | -40 °C | Hot Swap Controller | 8-SO | Fault Timeout | 3.9 mm | 0.154 in |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Bulk | 77 | $ 3.91 | |
| 77 | $ 3.91 | |||
| Tube | 1 | $ 8.33 | ||
| 1 | $ 8.33 | |||
| 10 | $ 5.72 | |||
| 10 | $ 5.72 | |||
Description
General part information
LT4250 Series
The LT4250L/LT4250H are 8-pin, negative 48V Hot Swap™controllers that allow a board to be safely inserted and removed from a live backplane. Inrush current is limited to a programmable value by controlling the gate voltage of an external N-channel pass transistor. The pass transistor is turned off if the input voltage is less than the programmable undervoltage threshold or greater than the overvoltage threshold. A programmable current limit protects the system against shorts. After a 500μs timeout the current limit activates the electronic circuit breaker. ThePWRGD(LT4250L) or PWRGD (LT4250H) signal can be used to directly enable a power module. The LT4250L is designed for modules with a low enable input and the LT4250H for modules with a high enable input.The LT4250L/LT4250H are available in 8-pin PDIP and SO packagesApplicationsCentral Office Switching–48V Distributed Power SystemsNegative Power Supply Control
Documents
Technical documentation and resources