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LTC4228CGN-2#PBF
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LTC4228CGN-2#PBF

Product Overview

Category

The LTC4228CGN-2#PBF belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for power supply and protection applications in various electronic devices and systems.

Characteristics

  • The LTC4228CGN-2#PBF is a versatile power management IC that offers advanced features for efficient power control.
  • It provides protection against overvoltage, undervoltage, and reverse voltage conditions, ensuring the safety and reliability of the connected system.
  • This IC also incorporates current limiting and fault detection capabilities, enhancing the overall power management functionality.
  • It operates within a wide input voltage range, making it suitable for diverse power supply requirements.
  • The LTC4228CGN-2#PBF is designed to be highly efficient, minimizing power losses and maximizing energy utilization.

Package and Quantity

The LTC4228CGN-2#PBF is available in a 16-pin SSOP (Shrink Small Outline Package) package. It is typically sold in reels or tubes, with a standard quantity of 250 units per reel/tube.

Specifications

  • Input Voltage Range: 2.9V to 18V
  • Operating Temperature Range: -40°C to 85°C
  • Maximum Continuous Current: 1A
  • Fault Detection Response Time: <1µs
  • Quiescent Current: 50µA (typical)

Pin Configuration

The LTC4228CGN-2#PBF features a 16-pin SSOP package with the following pin configuration:

  1. VIN1: Input Voltage 1
  2. VIN2: Input Voltage 2
  3. GND: Ground
  4. FLT1: Fault Output 1
  5. FLT2: Fault Output 2
  6. EN1: Enable Input 1
  7. EN2: Enable Input 2
  8. GATE1: Gate Drive Output 1
  9. GATE2: Gate Drive Output 2
  10. VCC: Supply Voltage
  11. SENSE1: Current Sense Input 1
  12. SENSE2: Current Sense Input 2
  13. OVLO1: Overvoltage Lockout Input 1
  14. OVLO2: Overvoltage Lockout Input 2
  15. UVLO1: Undervoltage Lockout Input 1
  16. UVLO2: Undervoltage Lockout Input 2

Functional Features

The LTC4228CGN-2#PBF offers the following functional features:

  1. Dual Input PowerPath Controller: Allows seamless power transfer between two input sources, ensuring uninterrupted operation.
  2. Reverse Voltage Protection: Safeguards the system against reverse voltage conditions, preventing damage to sensitive components.
  3. Overvoltage and Undervoltage Protection: Monitors input voltages and triggers fault outputs when they exceed or fall below specified thresholds.
  4. Current Limiting: Limits the output current to prevent excessive power dissipation and protect downstream components.
  5. Fault Detection and Reporting: Provides fault outputs that indicate the occurrence of overvoltage, undervoltage, or reverse voltage events.

Advantages and Disadvantages

Advantages: - Efficient power management and protection capabilities. - Wide input voltage range for versatile applications. - Compact and industry-standard package for easy integration. - Fast fault detection response time ensures quick system shutdown in case of faults.

Disadvantages: - Limited maximum continuous current may restrict usage in high-power applications. - Requires external components for complete power supply and protection implementation.

Working Principles

The LTC4228CGN-2#PBF operates by continuously monitoring the input voltages and comparing them to predefined thresholds. It intelligently switches between the two input sources based on their voltage levels, ensuring a seamless power transfer. The IC also incorporates various protection mechanisms to safeguard the system against voltage anomalies and faults.

Application Field Plans

The LTC4228CGN-2#PBF finds applications in a wide range of electronic devices and systems, including: - Battery-powered devices - Industrial control systems - Telecommunications equipment - Automotive electronics - Power distribution systems

Alternative Models

For power management and protection applications, there are several alternative models available in the market that offer similar functionality to the LTC4228CGN-2#PBF. Some notable alternatives include: - LTC4227: Similar features with additional fault reporting capabilities. - TPS2490: Offers advanced hot swap capabilities along with power path control. - MAX16064: Provides integrated overvoltage and undervoltage protection with adjustable thresholds.

In conclusion, the LTC4228CGN-2#PBF is a versatile power management IC that offers efficient power control, protection, and fault detection capabilities. Its compact

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de LTC4228CGN-2#PBF en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of LTC4228CGN-2#PBF in technical solutions:

  1. Q: What is LTC4228CGN-2#PBF? A: LTC4228CGN-2#PBF is a dual-supply hot swap controller designed to protect circuitry on power supply cards from damaging input voltage and current transients.

  2. Q: What are the key features of LTC4228CGN-2#PBF? A: Some key features include reverse current protection, adjustable fault timer, undervoltage lockout, and overvoltage protection.

  3. Q: How does LTC4228CGN-2#PBF provide reverse current protection? A: It uses an internal N-channel MOSFET to prevent reverse current flow during power supply insertion or removal.

  4. Q: Can LTC4228CGN-2#PBF handle high voltages? A: Yes, it can handle input voltages up to 80V.

  5. Q: What is the purpose of the adjustable fault timer? A: The adjustable fault timer allows users to set the time delay for fault detection and response, providing flexibility in different applications.

  6. Q: Does LTC4228CGN-2#PBF support undervoltage lockout? A: Yes, it has an undervoltage lockout feature that prevents operation when the input voltage falls below a certain threshold.

  7. Q: How does LTC4228CGN-2#PBF protect against overvoltage? A: It monitors the input voltage and shuts off the MOSFET if the voltage exceeds a specified threshold, protecting downstream circuitry.

  8. Q: Can LTC4228CGN-2#PBF be used in redundant power supply systems? A: Yes, it is commonly used in redundant power supply systems to provide hot swap capability and protect against faults.

  9. Q: What are the typical applications of LTC4228CGN-2#PBF? A: It is often used in telecom and networking equipment, servers, industrial control systems, and other applications where hot swapping is required.

  10. Q: Is there any evaluation board available for LTC4228CGN-2#PBF? A: Yes, Linear Technology (now part of Analog Devices) provides an evaluation board called DC2228A to help users evaluate and test the LTC4228CGN-2#PBF in their applications.

Please note that these answers are general and may vary depending on specific application requirements.