Datasheet for LTC4252
LTC4252A:
- Manufacturer Part Number : LTC4252
LTC4252A - Manufacturer : AD
- Description : Negative Voltage Hot Swap Controllers
- Series : LTC4252
LTC4252A - Reference Price : USD 1.88
- Our Price : We have a better price, contact us by email
- Product Type : Hot Swap Controllers
- Function : High Voltage Hot Swap Controllers
- Current Suggest : Recommended for New Designs
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : LTC4252
LTC4252A - Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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LTC4252A
LTC4252A
LTC4252A
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 LTC4252-1/LTC4252A-1 latch off after a circuit breaker fault times out. The LTC4252-2/LTC4252A-2 provide automatic retry after a fault. The LTC4252A-1/LTC4252A-2 feature tight ±1% undervoltage/overvoltage threshold accuracy. The LTC4252 is available in either an 8-pin or 10-pin MSOP, while the LTC4252A is available in the 10-pin MSOP.
| UV/OV % | Latch Off/Retry | Package | |
| LTC4252-1 | 4.6% | Latch off | MS-8, MS-10 |
| LTC4252-2 | 4.8% | Retry | MS-8, MS-10 |
| LTC4252A-1 | 1% | Latch off | MS-10 |
| LTC4252A-2 | 1% | Retry | MS-10 |
| LTC4252B-1 | 4.6% | Latch off | MS-8, MS-10 |
| LTC4252B-2 | 4.6% | Retry | MS-8, MS-10 |
| LTC4252C-1 | 1% | Latch off | MS-10 |
| LTC4252C-2 | 1% | Retry | MS-10 |
Applications
- Hot Board Insertion
- Electronic Circuit Breaker
- –48V Distributed Power Systems
- Negative Power Supply Control
- Central Office Switching
- High Availability Servers
- ATCA
LTC4252A
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
LTC4252A More photos
