LTC4360-1
LTC4360-2
RECOMMENDED FOR NEW DESIGNS
Overvoltage Protection Controller
- Part Models
- 8
- 1ku List Price
- Starting From $1.79
Overview
- 2.5V to 5.5V Operation
- Overvoltage Protection Up to 80V
- No Input Capacitor or TVS Required for Most Applications
- 2% Accurate 5.8V Overvoltage Threshold
- <1μs Overvoltage Turn-Off, Gentle Shutdown
- Controls N-Channel MOSFET
- Adjustable Power-Up dV/dt Limits Inrush
- Reverse Voltage Protection (LTC4360-2)
- Power Good Output
- Low Current Shutdown (LTC4360-1)
- Available in a Tiny 8-Lead SC70 Package
The LTC4360 overvoltage protection controller safeguards 2.5V to 5.5V systems from power supply overvoltage. It is designed for portable devices with multiple power supply options including wall adaptors, car battery adaptors and USB ports.
The LTC4360 controls an external N-channel MOSFET in series with the input power supply. During overvoltage transients, the LTC4360 turns off the MOSFET within 1μs, isolating downstream components from the input supply. Inductive cable transients are absorbed by the MOSFET and load capacitance. In most applications, the LTC4360 provides protection from transients up to 80V without requiring transient voltage suppressors or other external components.
The LTC4360 has a delayed start-up and an adjustable dV/dt ramp-up for inrush current limiting. A PWRGD pin provides power good monitoring for VIN. Following an overvoltage condition, the LTC4360 automatically restarts with a start-up delay. The LTC4360-1 features a soft shutdown controlled by the ON pin, while the LTC4360-2 controls an optional external P-channel MOSFET for negative voltage protection.
Applications
- USB Protection
- Handheld Computers
- Cell/Smart Phones
- MP3/MP4 Players
- Digital Cameras
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Video 1
Product Selector Card 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC4360CSC8-1#TRMPBF | 8-Lead SC70 | ||
| LTC4360CSC8-1#TRPBF | 8-Lead SC70 | ||
| LTC4360CSC8-2#TRMPBF | 8-Lead SC70 | ||
| LTC4360CSC8-2#TRPBF | 8-Lead SC70 | ||
| LTC4360ISC8-1#TRMPBF | 8-Lead SC70 | ||
| LTC4360ISC8-1#TRPBF | 8-Lead SC70 | ||
| LTC4360ISC8-2#TRMPBF | 8-Lead SC70 | ||
| LTC4360ISC8-2#TRPBF | 8-Lead SC70 |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
|
LTC4361-1 LTC4361-2 |
RECOMMENDED FOR NEW DESIGNS | Overvoltage/Overcurrent Protection Controller |
| LTC4365 | RECOMMENDED FOR NEW DESIGNS | Overvoltage, Undervoltage and Reverse Supply Protection Controller |
Tools & Simulations
LTspice 2
- LTC4360-1 Demo Circuit - 5V System Protected From 80V Overvoltage
- LTC4360-2 Demo Circuit - 5V System Protected from ± 24V Power Supplies
Models for the following parts are available in LTspice:
- LTC4360-1
- LTC4360-2
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
LTC4360-1/LTC4360-2 | Overvoltage Protection Controller with Shutdown/Reverse Voltage Protection
Resources
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