Overview
The LTC4364IDE-2#TRPBF, produced by Analog Devices Inc., is a surge stopper with an ideal diode controller designed to protect loads from high voltage transients. This component limits and regulates the output during overvoltage events, such as load dumps in automotive systems, by controlling the voltage drop across an external N-channel MOSFET pass device. It also includes a timed, current-limited circuit breaker and provides reverse input protection and output voltage holdup through an integrated ideal diode controller.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage Range | 4V to 80V |
| Overvoltage Protection | Regulates output at 27V during input transient; withstands surges over 80V with VCC clamp |
| Output Clamp Voltage | Adjustable |
| Reverse Input Protection | Up to –40V |
| Reverse Output Protection | Up to –20V |
| Overcurrent Protection | Timed, current-limited circuit breaker |
| Shutdown Current | 10μA at 12V |
| Package Options | 14-Lead DFN, 16-Lead MSOP, 16-Lead SO |
| Temperature Range | –40°C to 125°C (H-grade) |
Key Features
- Precise monitoring of input supply for overvoltage (OV) and undervoltage (UV) conditions
- Integrated ideal diode controller for reverse input protection and output voltage holdup
- Adjustable fault timer and retry duty cycle (0.1% for LTC4364-2)
- Low shutdown current of 10μA at 12V
- Cable drop compensation and current limit switches
- Available in automotive-grade versions with controlled manufacturing for reliability
Applications
- Automotive systems: load dump protection, battery management
- Industrial power systems: protection against voltage transients and surges
- Telecommunications: power supply protection and regulation
- Medical devices: reliable power supply protection
Q & A
- What is the primary function of the LTC4364? The LTC4364 is a surge stopper with an ideal diode controller that protects loads from high voltage transients and regulates output during overvoltage events.
- What is the operating voltage range of the LTC4364? The operating voltage range is from 4V to 80V.
- How does the LTC4364 protect against reverse input? It includes an integrated ideal diode controller that drives a second MOSFET to replace a Schottky diode for reverse input protection.
- What types of packages are available for the LTC4364? The component is available in 14-Lead DFN, 16-Lead MSOP, and 16-Lead SO packages.
- Is the LTC4364 suitable for automotive applications? Yes, it is available in automotive-grade versions with controlled manufacturing to support the quality and reliability requirements of automotive applications.
- What is the shutdown current of the LTC4364 at 12V? The shutdown current is 10μA at 12V.
- How does the LTC4364 handle overcurrent conditions? It includes a timed, current-limited circuit breaker that protects against overcurrent conditions.
- Can the fault timer be adjusted? Yes, the fault timer is adjustable.
- What is the temperature range for the H-grade LTC4364? The temperature range for the H-grade is –40°C to 125°C.
- Does the LTC4364 provide reverse output protection? Yes, it provides reverse output protection up to –20V.
