Overview
The LTC4365ITS8-1#TRMPBF, manufactured by Analog Devices Inc., is a highly versatile overvoltage, undervoltage, and reverse supply protection controller. This device is designed to protect applications from power supply input voltages that may be too high, too low, or even negative. It achieves this by controlling the gate voltages of a pair of external N-channel MOSFETs, ensuring the output stays within a safe operating range.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| VIN Input Voltage Range | Operating Range | 2.5 | - | 34 | V |
| VIN Input Voltage Range | Protection Range | -40 | - | 60 | V |
| IVIN Input Supply Current | SHDN = 0V, VIN = VOUT, -40°C to 85°C | 10 | 125 | 150 | µA |
| IVIN(R) Input Supply Current | SHDN = 0V, VIN = VOUT, -40°C to 125°C | 10 | 125 | 150 | µA |
| VUV UV Input Threshold Voltage | UV Falling → ΔVGATE = 0V | 492.5 | 500 | 507.5 | mV |
| VOV OV Input Threshold Voltage | OV Rising → ΔVGATE = 0V | 492.5 | 500 | 507.5 | mV |
| VUVHYST UV Input Hysteresis | - | 20 | 25 | 32 | mV |
| VOVHYST OV Input Hysteresis | - | 20 | 25 | 32 | mV |
| tFAULT UV, OV Fault Propagation Delay | Overdrive = 50mV, VIN = VOUT = 12V | 1 | 2 | - | µs |
| VSHDN SHDN Input Threshold | SHDN Falling to ΔVGATE = 0V | 0.4 | 0.75 | 1.2 | V |
| ISHDN SHDN Input Current | SHDN = 0.75V, VIN = 34V | ±10 | - | - | nA |
| tSTART Delay Coming Out of Shutdown Mode | SHDN Rising to ΔVGATE > 0V, VIN = VOUT = 12V | 400 | 800 | 1200 | µs |
Key Features
- Wide Operating Voltage Range: 2.5V to 34V
- Overvoltage Protection to 60V and Reverse Supply Protection to –40V
- No Input Capacitor or TVS Required for Most Applications
- Adjustable Undervoltage and Overvoltage Protection Range
- Charge Pump Enhances External N-Channel MOSFET
- Low Operating Current: 125µA and Low Shutdown Current: 10µA
- Compact 8-Lead, 3mm × 2mm DFN and TSOT-23 (ThinSOT) Packages
- AEC-Q100 Qualified for Automotive Applications
- LTC4365-1: Fast (1ms) Recovery from Fault
- Blocks 50Hz and 60Hz AC Power
Applications
- Portable Instrumentation
- Industrial Automation
- Laptops
- Automotive Surge Protection
- 12V Automotive Applications
Q & A
- What is the operating voltage range of the LTC4365ITS8-1#TRMPBF?
The operating voltage range is from 2.5V to 34V.
- What is the overvoltage protection range of the LTC4365ITS8-1#TRMPBF?
The device provides overvoltage protection up to 60V.
- Does the LTC4365ITS8-1#TRMPBF require an input capacitor or TVS for most applications?
No, it does not require an input capacitor or TVS for most applications.
- How does the LTC4365ITS8-1#TRMPBF enhance the external N-channel MOSFET?
The device includes a charge pump that enhances the external N-channel MOSFET.
- What is the typical operating current of the LTC4365ITS8-1#TRMPBF?
The typical operating current is 125µA.
- What is the shutdown current of the LTC4365ITS8-1#TRMPBF?
The shutdown current is 10µA.
- What are the available package types for the LTC4365ITS8-1#TRMPBF?
The device is available in 8-Lead, 3mm × 2mm DFN and TSOT-23 (ThinSOT) packages.
- Is the LTC4365ITS8-1#TRMPBF qualified for automotive applications?
Yes, it is AEC-Q100 qualified for automotive applications.
- What is the recovery time from faults for the LTC4365ITS8-1#TRMPBF?
The LTC4365-1 version has a fast recovery time of 1ms from faults.
- Does the LTC4365ITS8-1#TRMPBF block AC power?
Yes, it blocks 50Hz and 60Hz AC power.
