Datasheet for LT4356HMS-1#TRPBF:
- Manufacturer Part Number : LT4356HMS-1#TRPBF
- Manufacturer : AD
- Description : Surge Stopper IC
- Series : LT4356-1
LT4356-2 - Reference Price : USD 2.12
- Our Price : We have a better price, contact us by email
- Product Type : Surge Stopper, Overvoltage & Overcurrent Protection
- Function : -
- Current Suggest : Recommended for New Designs
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 10-Lead MSOP
- Pins : 10
- MFG Package Case : 05-08-1661
- Part Type : REEL
- Standard Packing Type : Reel
- Standard Packing Quantity : 2500
- Working Temperature : -40 to 125C
- Other Part Number : LT4356HMS-1#TRPBF
- 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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- Stops High Voltage Surges
- Adjustable Output Clamp Voltage
- Overcurrent Protection
- Wide Operation Range: 4V to 80V
- Reverse Input Protection to –60V
- Low 7µA Shutdown Current (LT4356-1)
- Auxiliary Amplifier for Level Detection Comparator or Linear Regulator Controller (LT4356-2)
- Adjustable Fault Timer
- Controls N-channel MOSFET
- Shutdown Pin Withstands –60V to 100V
- Fault Output Indication
- Guaranteed Operation to 125°C
- Available in (4mm × 3mm) 12-Pin DFN, 10-Pin MSOP or 16-Pin SO Packages
The LT4356 surge stopper protects loads from high voltage transients. It regulates the output during an overvoltage event, such as load dump in automobiles, by controlling the gate of an external N-channel MOSFET. The output is limited to a safe value thereby allowing the loads to continue functioning. The LT4356 also monitors the voltage drop between the VCC and SNS pins to protect against overcurrent faults. An internal amplifier limits the current sense voltage to 50mV. In either fault condition, a timer is started inversely proportional to MOSFET stress. If the timer expires, the FLT pin pulls low to warn of an impending power down. If the condition persists, the MOSFET is turned off. After a cool down period, the GATE pin pulls up turning on the MOSFET again.
The auxiliary amplifier may be used as a voltage detection comparator or as a linear regulator controller driving an external PNP pass transistor.
Back-to-back FETs can be used in lieu of a Schottky diode for reverse input protection, reducing voltage drop and power loss. A shutdown pin reduces the quiescent current to less than 7µA for the LT4356-1 during shutdown. The LT4356-2 differs from the LT4356-1 during shutdown by reducing the quiescent current to 60µA and keeping alive the auxiliary amplifier for uses such as an undervoltage lockout or always-on regulator.
| LT4356-1 LT4356MP-1 | LT4356-2 LT4356MP-2 | LT4356-3 LT4356MP-3 | |
| Low Current Shutdown | 7uA | 60uA | 7uA |
| Aux Amp In Shutdown | OFF | Always Alive | OFF |
| Fault Retry | Retry | Retry | Latch Off |
| Packages | DFN-12, MS-10, SO-16 | DFN-12, SO-16 | DFN-12, MS-10, SO-16 |
| Temp Grades | C, I, H, MP | C, I, H, MP | C, I, H, MP |
Applications
- Automotive/Avionic Surge Protection
- Hot Swap/Live Insertion
- High Side Switch for Battery Powered Systems
- Intrinsic Safety Applications
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.
