LTC4367IMS8-1#PBF

Product Overview

Category

The LTC4367IMS8-1#PBF belongs to the category of integrated circuits (ICs) used in power management.

Use

This IC is primarily used for protection and control purposes in various electronic systems, including power supplies, battery chargers, and industrial equipment.

Characteristics

• The LTC4367IMS8-1#PBF is a high-performance overvoltage and reverse voltage protection controller.
• It provides robust protection against voltage transients and faults, ensuring the safety and reliability of connected devices.
• This IC offers fast response times and low quiescent current, making it suitable for applications requiring high efficiency and responsiveness.
• It operates over a wide input voltage range, enhancing its versatility in different power supply scenarios.

Package

The LTC4367IMS8-1#PBF comes in an 8-pin MSOP (Mini Small Outline Package), which is compact and suitable for space-constrained designs.

Essence

The essence of the LTC4367IMS8-1#PBF lies in its ability to safeguard electronic systems from damaging voltage spikes and reverse polarity events. By monitoring the input voltage and controlling the power path, it ensures the system remains protected under various operating conditions.

Packaging/Quantity

The LTC4367IMS8-1#PBF is typically available in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Overvoltage Protection Threshold: Adjustable from 3V to 5.5V
• Reverse Voltage Protection Threshold: Adjustable from -0.3V to -5.5V
• Quiescent Current: 20µA (typical)
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC4367IMS8-1#PBF features the following pin configuration:

1. GATE: Gate Drive Output
2. VIN: Input Voltage
3. GND: Ground
4. VOUT: Output Voltage
5. FLT: Fault Indicator Output
6. OVSET: Overvoltage Threshold Setting
7. REVSET: Reverse Voltage Threshold Setting
8. UVLO: Undervoltage Lockout

Functional Features

1. Overvoltage Protection: The LTC4367IMS8-1#PBF monitors the input voltage and disables the gate drive output when it exceeds the set overvoltage threshold, preventing damage to downstream components.
2. Reverse Voltage Protection: In case of reverse polarity connection, the IC quickly shuts down the power path, safeguarding the system from potential harm.
3. Fault Indication: The fault indicator output (FLT) provides a signal indicating the occurrence of an overvoltage or reverse voltage event, enabling timely troubleshooting and corrective actions.
4. Adjustable Thresholds: The overvoltage and reverse voltage thresholds can be adjusted according to the specific requirements of the application, providing flexibility in different operating conditions.
5. Undervoltage Lockout: The LTC4367IMS8-1#PBF incorporates an undervoltage lockout feature that ensures proper operation only when the input voltage is within the specified range.

Advantages and Disadvantages

Advantages

• Robust protection against overvoltage and reverse voltage events.
• Fast response times and low quiescent current for efficient power management.
• Adjustable thresholds for customization based on application needs.
• Compact package suitable for space-constrained designs.
• Wide input voltage range enhances versatility.

Disadvantages

• Limited to applications with input voltages between 2.5V and 5.5V.
• Requires external components for complete protection circuit implementation.

Working Principles

The LTC4367IMS8-1#PBF operates by continuously monitoring the input voltage and comparing it to the set overvoltage and reverse voltage thresholds. When an overvoltage condition is detected, the gate drive output is disabled, preventing excessive voltage from reaching downstream components. In the case of reverse polarity connection, the IC quickly shuts down the power path to protect the system. The fault indicator output provides a signal to indicate the occurrence of a fault, enabling prompt troubleshooting and corrective actions.

Detailed Application Field Plans

The LTC4367IMS8-1#PBF finds applications in various fields, including:

1. Power Supplies: Provides reliable overvoltage and reverse voltage protection for power supply units used in consumer electronics, industrial equipment, and automotive systems.
2. Battery Chargers: Ensures safe charging of batteries by protecting against voltage transients and reverse polarity events.
3. Industrial Equipment: Protects sensitive electronic components in industrial machinery from damaging voltage spikes and reverse voltage conditions.
4. Automotive Electronics: Safeguards automotive electronic systems from potential damage caused by voltage surges