LTC4361IDC-2

Product Overview

Category

LTC4361IDC-2 belongs to the category of integrated circuits (ICs) used in power management.

Use

This product is primarily used for protecting sensitive electronic components from overvoltage and reverse voltage conditions.

Characteristics

• Overvoltage Protection: The LTC4361IDC-2 provides protection against excessive input voltages, preventing damage to downstream components.
• Reverse Voltage Protection: It safeguards the circuitry by blocking reverse current flow when the input voltage polarity is reversed.
• Fast Response Time: The device quickly detects and responds to voltage anomalies, ensuring timely protection.
• Low Quiescent Current: The LTC4361IDC-2 consumes minimal current during normal operation, optimizing power efficiency.

Package

The LTC4361IDC-2 is available in a small 6-pin DFN (Dual Flat No-Lead) package, which offers compactness and ease of integration into various applications.

Essence

The essence of LTC4361IDC-2 lies in its ability to provide robust protection against voltage irregularities, safeguarding sensitive electronic components.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Overvoltage Threshold: Adjustable from 2.8V to 5.5V
• Reverse Voltage Threshold: Adjustable from -2.8V to -5.5V
• Operating Temperature Range: -40°C to 85°C
• Quiescent Current: 20µA (typical)

Pin Configuration

The LTC4361IDC-2 features the following pin configuration:

1. VIN: Input Voltage
2. GATE: Gate Control Output
3. GND: Ground
4. FLT: Fault Indicator Output
5. VOUT: Output Voltage
6. UVLO: Undervoltage Lockout

Functional Features

• Overvoltage Protection: The LTC4361IDC-2 monitors the input voltage and quickly shuts off the gate control output when an overvoltage condition is detected, preventing damage to downstream components.
• Reverse Voltage Protection: It blocks reverse current flow by disabling the gate control output when the input voltage polarity is reversed, ensuring protection against reverse voltage conditions.
• Fault Indicator Output: The FLT pin provides a fault indication signal, alerting the system to potential voltage irregularities.
• Undervoltage Lockout (UVLO): This feature disables the gate control output when the input voltage falls below a certain threshold, preventing operation in low voltage conditions.

Advantages and Disadvantages

Advantages

• Robust Protection: The LTC4361IDC-2 offers reliable protection against overvoltage and reverse voltage conditions, safeguarding sensitive electronic components.
• Fast Response Time: The device quickly detects voltage anomalies and responds promptly, minimizing the risk of component damage.
• Low Quiescent Current: With its low power consumption, the LTC4361IDC-2 helps optimize overall power efficiency.

Disadvantages

• Limited Input Voltage Range: The product is designed for use within a specific input voltage range (2.5V to 5.5V), which may limit its applicability in certain scenarios.
• Package Size: The small 6-pin DFN package may pose challenges for manual soldering or rework.

Working Principles

The LTC4361IDC-2 operates by continuously monitoring the input voltage. When an overvoltage condition is detected, it rapidly disables the gate control output, protecting downstream components. Similarly, in the case of reverse voltage, the device blocks the reverse current flow by disabling the gate control output. The fault indicator output provides a signal to indicate potential voltage irregularities, while the undervoltage lockout feature ensures that the device does not operate in low voltage conditions.

Application Field Plans

The LTC4361IDC-2 finds applications in various fields where protection against overvoltage and reverse voltage is crucial. Some potential application areas include:

1. Power Supplies: It can be used in power supply units to protect sensitive electronic components from voltage surges.
2. Automotive Electronics: The product can safeguard automotive electronics from voltage transients and reverse battery connections.
3. Industrial Control Systems: It can be employed in industrial control systems to protect critical components from voltage anomalies.
4. Communication Equipment: The LTC4361IDC-2 can provide protection for communication equipment against voltage fluctuations and reverse voltage conditions.

Alternative Models

For users seeking alternative options, several similar products are available in the market. Some notable alternatives to LTC4361IDC-2 include:

1. MAX4372TEUK+: This integrated circuit offers overvoltage and reverse voltage protection with adjustable thresholds.
2. TPS26600DR: