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ADI LT4256-2IS8#PBF
| Manufacturer | |
| MPN | LT4256-2IS8#PBF |
| LCSC Part # | C671945 |
| Packaging | SO-8 |
| Customer # | |
| Key Attributes | Positive High Voltage Hot Swap Controllers |
| Datasheet |  ADI LT4256-2IS8#PBF |
| RoHS Compliance | 1 documents available |
| Alternative Parts | 1 |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Hot Swap Controllers | |
| Manufacturer | ADI | |
| Packaging | SO-8 | |
| Operating Temperature Range | -40℃~+85℃ | |
| Length | 5mm | |
| Height | 1.75mm | |
| Threshold Voltage | 55mV | |
| Width | 4mm | |
| Features | Overcurrent Protection;Short-Circuit Protection;Under-voltage lockout | |
| Number of Channels | 1 | |
| Voltage Rating | 10.8V~80V |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Hot Swap Controllers | |
| Manufacturer | ADI | |
| Packaging | SO-8 | |
| Operating Temperature Range | -40℃~+85℃ | |
| Length | 5mm | |
| Height | 1.75mm |
| Type | Description | |
|---|---|---|
| Threshold Voltage | 55mV | |
| Width | 4mm | |
| Features | Overcurrent Protection;Short-Circuit Protection;Under-voltage lockout | |
| Number of Channels | 1 | |
| Voltage Rating | 10.8V~80V |
Introduction
The LT4256-1/LT4256-2 are high voltage Hot Swap controllers that allow a board to be safely inserted and removed from a live backplane. An internal driver drives an external N-channel MOSFET switch to control supply voltages ranging from 10.8V to 80V. The LT4256-1/LT4256-2 features an adjustable analog foldback current limit. If the supply remains in current limit for more than a programmable time, the N-channel MOSFET shuts off and the PWRGD output asserts low. The LT4256-2 automatically restarts after a time-out delay. The LT4256-1 latches off until the UV pin is cycled low. The PWRGD output indicates when the output voltage rises above a programmed level. An external resistor string from VCC provides programmable undervoltage protection. The LT4256 can be used as an upgrade to LT1641 designs. The LT4256-1 and LT4256-2 are available in an 8-pin SO package that is pin compatible with the LT1641.
Features
- Allows Safe Board Insertion and Removal from a Live Backplane
- Controls Supply Voltage from 10.8V to 80V
- Foldback Current Limiting
- Overcurrent Fault Detection
- Drives an External N-Channel MOSFET
- Programmable Supply Voltage Power-Up Rate
- Undervoltage Protection
- Latch Off Operation Mode (LT4256-1)
- Automatic Retry (LT4256-2)
- Available in an 8-Pin SO Package
Applications
- Hot Board Insertion
- Electronic Circuit Breaker/Power Bussing
- Industrial High Side Switch/Circuit Breaker
- 24V/48V Industrial/Alarm Systems
- Ideally Suited for 12V, 24V and 48V Distributed Power Systems
- 48V Telecom Systems
| Qty | Unit Price | Total Amount |
|---|---|---|
| 1+ | $ 10.1643$ 9.9611 | $ 9.96 |
| 10+ | $ 9.9391$ 9.7404 | $ 97.40 |
| 30+ | $ 9.7889$ 9.5932 | $ 287.80 |
| 100+ | $ 9.6371$ 9.4444 | $ 944.44 |
Standard Packaging100/Full Tube | ||
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Hot Swap Controllers | |
| Manufacturer | ADI | |
| Packaging | SO-8 | |
| Operating Temperature Range | -40℃~+85℃ | |
| Length | 5mm | |
| Height | 1.75mm | |
| Threshold Voltage | 55mV | |
| Width | 4mm | |
| Features | Overcurrent Protection;Short-Circuit Protection;Under-voltage lockout | |
| Number of Channels | 1 | |
| Voltage Rating | 10.8V~80V |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Hot Swap Controllers | |
| Manufacturer | ADI | |
| Packaging | SO-8 | |
| Operating Temperature Range | -40℃~+85℃ | |
| Length | 5mm | |
| Height | 1.75mm |
| Type | Description | |
|---|---|---|
| Threshold Voltage | 55mV | |
| Width | 4mm | |
| Features | Overcurrent Protection;Short-Circuit Protection;Under-voltage lockout | |
| Number of Channels | 1 | |
| Voltage Rating | 10.8V~80V |
Introduction
The LT4256-1/LT4256-2 are high voltage Hot Swap controllers that allow a board to be safely inserted and removed from a live backplane. An internal driver drives an external N-channel MOSFET switch to control supply voltages ranging from 10.8V to 80V. The LT4256-1/LT4256-2 features an adjustable analog foldback current limit. If the supply remains in current limit for more than a programmable time, the N-channel MOSFET shuts off and the PWRGD output asserts low. The LT4256-2 automatically restarts after a time-out delay. The LT4256-1 latches off until the UV pin is cycled low. The PWRGD output indicates when the output voltage rises above a programmed level. An external resistor string from VCC provides programmable undervoltage protection. The LT4256 can be used as an upgrade to LT1641 designs. The LT4256-1 and LT4256-2 are available in an 8-pin SO package that is pin compatible with the LT1641.
Features
- Allows Safe Board Insertion and Removal from a Live Backplane
- Controls Supply Voltage from 10.8V to 80V
- Foldback Current Limiting
- Overcurrent Fault Detection
- Drives an External N-Channel MOSFET
- Programmable Supply Voltage Power-Up Rate
- Undervoltage Protection
- Latch Off Operation Mode (LT4256-1)
- Automatic Retry (LT4256-2)
- Available in an 8-Pin SO Package
Applications
- Hot Board Insertion
- Electronic Circuit Breaker/Power Bussing
- Industrial High Side Switch/Circuit Breaker
- 24V/48V Industrial/Alarm Systems
- Ideally Suited for 12V, 24V and 48V Distributed Power Systems
- 48V Telecom Systems
C671945 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8536300000 |
| USHTS | 8536308000 |
| TARIC | 8536301010 |
| CAHTS | 8536302000 |
| BRHTS | 85363090 |
| INHTS | 85363000 |
| MXHTS | 8536.30.01 |
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8536300000 |
| USHTS | 8536308000 |
| TARIC | 8536301010 |
| Type | Details |
|---|---|
| CAHTS | 8536302000 |
| BRHTS | 85363090 |
| INHTS | 85363000 |
| MXHTS | 8536.30.01 |
Alternative Parts
| MPN | Manufacturer | Packaging | Availability | Unit Price | ||
|---|---|---|---|---|---|---|
| LT4256-2IS8#TRPBF | ADI | SO-8 | 0 | $ 8.2541 |