LTC4360ISC8-2

Product Overview

Category

LTC4360ISC8-2 belongs to the category of integrated circuits (ICs) used for power management and protection.

Use

This IC is primarily used for protecting sensitive electronic components from voltage transients, overvoltage, and reverse polarity conditions.

Characteristics

• Provides robust protection against voltage spikes and surges.
• Offers reverse polarity protection to prevent damage caused by incorrect power supply connections.
• Features an adjustable overvoltage threshold for customized protection levels.
• Designed to operate in a wide temperature range (-40°C to 125°C).
• Suitable for various applications requiring reliable power protection.

Package

LTC4360ISC8-2 is available in an 8-pin small outline integrated circuit (SOIC) package.

Essence

The essence of LTC4360ISC8-2 lies in its ability to safeguard electronic devices by preventing voltage-related damages.

Packaging/Quantity

This IC is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Overvoltage Threshold Range: 2.6V to 5.7V
• Reverse Voltage Protection: -40V
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 10μA (typical)

Pin Configuration

LTC4360ISC8-2 features the following pin configuration:

1. GATE: Connects to the gate of an external N-channel MOSFET for controlling the power path.
2. VIN: Power input pin for the protected device.
3. GND: Ground reference pin.
4. VOUT: Output voltage pin for the protected device.
5. OVSET: Pin for setting the overvoltage threshold.
6. FLT: Fault output pin indicating overvoltage or reverse polarity conditions.
7. UVLO: Undervoltage lockout pin for disabling the IC when input voltage falls below a certain threshold.
8. VCC: Power supply pin for internal circuitry.

Functional Features

1. Overvoltage Protection: LTC4360ISC8-2 monitors the input voltage and disconnects the power path when it exceeds the set threshold, preventing damage to the protected device.
2. Reverse Polarity Protection: The IC prevents reverse voltage from reaching the protected device, safeguarding it against potential harm.
3. Fault Indication: The FLT pin provides an output signal to indicate overvoltage or reverse polarity conditions, allowing for timely troubleshooting.
4. Adjustable Threshold: The OVSET pin allows users to customize the overvoltage threshold according to their specific application requirements.
5. Undervoltage Lockout: The UVLO pin disables the IC when the input voltage falls below a certain level, ensuring proper operation under low voltage conditions.

Advantages and Disadvantages

Advantages

• Robust protection against voltage transients and overvoltage events.
• Reverse polarity protection prevents damage caused by incorrect power connections.
• Adjustable overvoltage threshold offers flexibility in different applications.
• Wide operating temperature range enables usage in various environments.
• Low quiescent current minimizes power consumption.

Disadvantages

• Limited to a maximum input voltage of 5.5V.
• Requires an external N-channel MOSFET for power path control.

Working Principles

LTC4360ISC8-2 operates based on a combination of voltage monitoring, MOSFET control, and fault detection mechanisms. It continuously monitors the input voltage and compares it to the set overvoltage threshold. If the voltage exceeds this threshold, the IC turns off the MOSFET, effectively disconnecting the power path to protect the device. Additionally, it detects reverse polarity conditions and prevents the reverse voltage from reaching the protected device.

Detailed Application Field Plans

LTC4360ISC8-2 finds applications in various fields where protection against voltage transients and reverse polarity is crucial. Some potential application areas include:

1. Automotive Electronics: Protecting sensitive automotive components from voltage spikes and reverse polarity during battery connection.
2. Industrial Control Systems: Safeguarding control circuitry from power supply anomalies and incorrect wiring.
3. Telecommunications: Ensuring reliable power protection for communication equipment exposed to fluctuating voltages.
4. Consumer Electronics: Preventing damage to electronic devices caused by power surges or incorrect charger connections.

Detailed and Complete Alternative Models

1. LTC4360-1: Similar to LTC4360ISC8-2 but available in a 10-pin DFN package.
2. LTC4360-2: Offers additional features such as adjustable undervoltage lockout and thermal shutdown protection.
3. LTC4360-3: Provides higher input voltage range and adjustable overvoltage threshold.

These alternative models offer similar functionality with slight variations in package type, additional