LT4356MPS-1#TRPBF

Introduction

The LT4356MPS-1#TRPBF is a versatile product belonging to the category of power management integrated circuits (PMICs). This device is designed to provide overvoltage and overcurrent protection for low voltage systems. It offers a range of characteristics that make it suitable for various applications, and its compact package ensures ease of integration into different electronic designs.

Basic Information Overview

• Category: Power Management Integrated Circuit (PMIC)
• Use: Overvoltage and overcurrent protection for low voltage systems
• Characteristics: High precision, low quiescent current, adjustable overvoltage protection threshold
• Package: 10-Lead MSOP
• Essence: Protection of sensitive electronic components from overvoltage and overcurrent events
• Packaging/Quantity: Tape & Reel (TR) packaging, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 80V
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 1.8µA
• Overvoltage Threshold Accuracy: ±1.5%
• Overvoltage Lockout Hysteresis: 3.5%

Detailed Pin Configuration

The LT4356MPS-1#TRPBF features a 10-lead MSOP package with the following pin configuration: 1. VIN: Input Voltage 2. GATE: Gate Drive Output 3. FB: Feedback Input 4. UVLO: Undervoltage Lockout 5. OV: Overvoltage Flag 6. PG: Power Good Indicator 7. VCC: Supply Voltage 8. GND: Ground 9. SET: Overvoltage Threshold Set 10. SS: Soft-Start Capacitor

Functional Features

• Overvoltage Protection: Monitors the input voltage and provides protection by turning off an external N-channel MOSFET when the input voltage exceeds the programmed threshold.
• Overcurrent Protection: Utilizes a sense resistor to detect overcurrent conditions and quickly turns off the MOSFET to protect downstream circuitry.
• Adjustable Threshold: The overvoltage threshold can be set using an external resistor divider, allowing flexibility in system design.

Advantages and Disadvantages

Advantages

• High precision overvoltage protection
• Low quiescent current minimizes power consumption
• Wide input voltage range enables versatile application
• Adjustable overvoltage threshold enhances flexibility in design

Disadvantages

• Requires an external N-channel MOSFET for operation
• Limited to low voltage systems

Working Principles

The LT4356MPS-1#TRPBF operates by continuously monitoring the input voltage and comparing it to the programmed overvoltage threshold. When an overvoltage condition is detected, the device quickly turns off the external MOSFET to prevent damage to downstream components. Similarly, the overcurrent protection function monitors the voltage across a sense resistor to detect excessive current flow and triggers the MOSFET shutdown mechanism.

Detailed Application Field Plans

The LT4356MPS-1#TRPBF is well-suited for a wide range of applications, including: - Automotive electronics - Industrial control systems - Battery management systems - Power distribution units - Solar power systems

Detailed and Complete Alternative Models

• LT4356-1: Similar functionality with different package options
• LTC4366: Offers similar overvoltage and overcurrent protection with additional features
• LT4363: Provides overvoltage protection for higher voltage systems

In conclusion, the LT4356MPS-1#TRPBF is a highly capable PMIC offering precise overvoltage and overcurrent protection for low voltage systems. Its compact package, adjustable threshold, and low quiescent current make it an attractive choice for a variety of electronic designs.

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