LTC4361HTS8-2#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Overvoltage and reverse voltage protection

Characteristics: - Provides protection against overvoltage and reverse voltage conditions - Monitors the input voltage and disconnects the load when a fault is detected - Fast response time to protect sensitive electronic components - Low quiescent current for efficient power management

Package: TSOT-23-8

Essence: The LTC4361HTS8-2#TRPBF is an integrated circuit designed to provide robust overvoltage and reverse voltage protection for various electronic systems.

Packaging/Quantity: The LTC4361HTS8-2#TRPBF is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Input Voltage Range: -40V to 60V
• Overvoltage Threshold: Adjustable from 4.5V to 80V
• Reverse Voltage Threshold: Adjustable from -40V to -80V
• Quiescent Current: 10µA (typical)
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC4361HTS8-2#TRPBF has the following pin configuration:

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| | --| VIN GND |-- Pin 1: Ground --| VOUT FLT |-- Pin 2: Fault Indicator Output --| EN OV |-- Pin 3: Enable and Overvoltage Threshold Adjustment --| UV RE |-- Pin 4: Undervoltage and Reverse Voltage Threshold Adjustment --| PG FB |-- Pin 5: Power Good Output and Feedback --| SS NC |-- Pin 6: Soft-Start and No Connect --| GATE NC |-- Pin 7: Gate Drive Output and No Connect --| VCC NC |-- Pin 8: Supply Voltage and No Connect |___________| ```

Functional Features

1. Overvoltage Protection: The LTC4361HTS8-2#TRPBF monitors the input voltage and disconnects the load when it exceeds the set overvoltage threshold, protecting downstream components from damage.

2. Reverse Voltage Protection: In case of reverse voltage polarity, the LTC4361HTS8-2#TRPBF quickly detects the fault and disconnects the load to prevent any potential damage.

3. Fault Indicator Output: The FLT pin provides a signal indicating the occurrence of an overvoltage or reverse voltage fault.

4. Power Good Output: The PG pin indicates when the input voltage is within the acceptable range, ensuring proper power supply operation.

5. Adjustable Thresholds: The EN and UV/RE pins allow for easy adjustment of the overvoltage and reverse voltage thresholds, providing flexibility in different application scenarios.

Advantages and Disadvantages

Advantages: - Provides robust protection against overvoltage and reverse voltage conditions - Fast response time ensures quick disconnection of the load - Low quiescent current minimizes power consumption - Adjustable thresholds offer versatility in various applications

Disadvantages: - Limited operating temperature range (-40°C to 85°C) - Requires careful consideration of input voltage range compatibility

Working Principles

The LTC4361HTS8-2#TRPBF utilizes a combination of internal circuitry and external components to monitor the input voltage and protect against overvoltage and reverse voltage conditions. When the input voltage exceeds the set overvoltage threshold or reverses polarity, the IC quickly disconnects the load by controlling the gate drive output. This action prevents any potential damage to downstream components. The fault indicator output and power good output provide additional information about the system's status.

Detailed Application Field Plans

The LTC4361HTS8-2#TRPBF is widely used in various electronic systems where overvoltage and reverse voltage protection is crucial. Some application fields include:

1. Power Supply Units (PSUs): Protecting sensitive electronic components in PSUs from voltage spikes and reverse voltage conditions.

2. Automotive Electronics: Safeguarding automotive electronic systems from voltage transients and reverse battery connections.

3. Industrial Control Systems: Providing reliable protection for control circuitry against voltage surges and reverse voltage situations.

4. Battery Management Systems: Ensuring the integrity of battery-powered devices by preventing overvoltage and reverse voltage damage.

Detailed and Complete Alternative Models

1. LTC4360: Similar functionality with adjustable overvoltage and reverse voltage thresholds, available in different package options.

2. MAX6495: Integrated overvoltage and reverse voltage protection IC with adjustable thresholds and fault indicator output.

3. TPS26600: Overvoltage and reverse voltage protection device with built-in gate drive capability and