Overview
The LTC4366ITS8-2#TRMPBF is a high voltage surge stopper produced by Analog Devices Inc. This component is designed to protect loads from high voltage transients by controlling the gate of an external N-channel MOSFET. It regulates the output voltage and prevents overvoltage conditions, ensuring the safety and reliability of the connected load.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage (VDD) | –0.3V to 10V |
| Supply Voltage (OUT) | –0.3V to 5V |
| Input Voltages (FB) | –0.3V to OUT + 0.3V |
| TIMER Pin Threshold (Rising) | 2.5V to 3.1V (VDD = 7V, OUT = VZ(OUT)) |
| SD Pin Threshold Voltage (Falling) | 1.0V to 2.3V (VDD – SD) |
| SD Pin Hysteresis | 129mV to 530mV |
| Package Type | 8-Lead Plastic TSOT-23 |
| Temperature Range | –40°C to 85°C |
| FB Pin Regulation Threshold (OUT – FB) | 1.193V to 1.267V |
Key Features
- Protects loads from high voltage transients by controlling an external N-channel MOSFET.
- Regulates output voltage to prevent overvoltage conditions.
- Includes a cool-down timer to prevent MOSFET overheating during overvoltage regulation.
- Available in latched-off (LTC4366-1) and auto-retry (LTC4366-2) versions.
- Low delay times: SD low to gate low filter time of 420µs to 1200µs, and FB low to gate low delay time of 60ns to 300ns.
Applications
- Power system protection against voltage surges and transients.
- Cable drop compensation.
- Current limit switches and hot swap controllers.
- Digital power system management and energy monitoring.
- Power-over-Ethernet (PoE) interface controllers and USB power switches.
Q & A
- What is the primary function of the LTC4366ITS8-2#TRMPBF? The primary function is to protect loads from high voltage transients by controlling an external N-channel MOSFET.
- What are the supply voltage ranges for VDD and OUT? VDD: –0.3V to 10V, OUT: –0.3V to 5V.
- What is the temperature range for the LTC4366ITS8-2#TRMPBF? –40°C to 85°C.
- How does the cool-down timer work? The cool-down timer prevents MOSFET overheating by limiting overvoltage regulation time and entering a cool-down period of 9 seconds after an overvoltage fault.
- What are the differences between the LTC4366-1 and LTC4366-2 versions? The LTC4366-1 is a latched-off version that remains in fault until the SD pin is toggled, while the LTC4366-2 is an auto-retry version that clears the fault and restarts after 9 seconds.
- What is the package type of the LTC4366ITS8-2#TRMPBF? 8-Lead Plastic TSOT-23.
- What are some common applications of the LTC4366ITS8-2#TRMPBF? Power system protection, cable drop compensation, current limit switches, digital power system management, and PoE interface controllers.
- How does the SD pin threshold voltage work? The SD pin threshold voltage is between 1.0V to 2.3V (VDD – SD) with a hysteresis of 129mV to 530mV.
- What is the FB pin regulation threshold? The FB pin regulation threshold is between 1.193V to 1.267V (OUT – FB).
- How long does the cool-down period last after an overvoltage fault? The cool-down period lasts for 9 seconds.
