LT4351IMS#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Overvoltage Protection Controller

Characteristics: - Monitors input voltage and protects downstream components from overvoltage events - Provides fast response time to protect sensitive electronic devices - Offers adjustable threshold for precise voltage monitoring - Supports wide input voltage range - Low quiescent current consumption - Compact and easy-to-use package

Package: MSOP-10

Essence: The LT4351IMS#TRPBF is an integrated circuit designed to provide overvoltage protection for electronic systems. It ensures the safety of downstream components by monitoring the input voltage and quickly responding to overvoltage events.

Packaging/Quantity: The LT4351IMS#TRPBF is typically sold in reels containing 2500 units.

Specifications

• Input Voltage Range: 4V to 80V
• Adjustable Overvoltage Threshold: 5V to 72V
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to 125°C
• Package Type: MSOP-10

Pin Configuration

The LT4351IMS#TRPBF features a 10-pin MSOP package with the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. FLT: Fault indicator output
4. OV: Overvoltage threshold adjustment
5. EN: Enable pin
6. UV: Undervoltage threshold adjustment
7. FB: Feedback pin
8. OUT: Output voltage
9. SS: Soft-start capacitor connection
10. NC: No connect

Functional Features

• Overvoltage Protection: Monitors the input voltage and triggers a fault condition if it exceeds the set threshold.
• Fast Response Time: Quickly responds to overvoltage events to protect downstream components.
• Adjustable Threshold: Allows precise voltage monitoring by adjusting the overvoltage threshold.
• Enable Pin: Provides control over the device's operation, allowing it to be enabled or disabled as needed.
• Fault Indicator Output: Signals the occurrence of an overvoltage event through the FLT pin.

Advantages and Disadvantages

Advantages: - Efficient overvoltage protection for electronic systems - Adjustable threshold for precise voltage monitoring - Fast response time to protect sensitive components - Low quiescent current consumption - Compact package size

Disadvantages: - Limited input voltage range (4V to 80V) - Requires external components for complete protection circuit implementation

Working Principles

The LT4351IMS#TRPBF operates by continuously monitoring the input voltage. When the voltage exceeds the set threshold, the device triggers a fault condition, protecting downstream components from potential damage. The adjustable threshold allows users to precisely define the desired voltage level at which the protection mechanism is activated.

Detailed Application Field Plans

The LT4351IMS#TRPBF finds applications in various fields where overvoltage protection is crucial. Some of the detailed application field plans include:

1. Power Supply Units: Protecting sensitive electronic devices from voltage spikes and surges.
2. Automotive Electronics: Safeguarding automotive systems from voltage transients and load dump events.
3. Industrial Control Systems: Preventing damage to control circuitry caused by overvoltage conditions.
4. Telecommunications Equipment: Ensuring the safety of communication devices during power fluctuations.
5. Renewable Energy Systems: Protecting solar panels and wind turbines from voltage surges.

Detailed and Complete Alternative Models

1. LTC4366: Overvoltage Protection Controller with Reverse Voltage Protection
2. MAX16054: Adjustable Overvoltage Protection Circuit
3. TPS26600: Wide Input Voltage Range Overvoltage Protection IC
4. NCP370: Precision Overvoltage Protection Controller

These alternative models offer similar functionality and can be considered as alternatives to the LT4351IMS#TRPBF depending on specific requirements.

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