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LTC4215IGN#PBF
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LTC4215IGN#PBF

Product Overview

Category: Integrated Circuits (ICs)

Use: Power Management IC

Characteristics: - Overvoltage and undervoltage protection - Ideal diode controller - Adjustable current limit - Thermal shutdown protection

Package: 16-SSOP (0.154", 3.90mm Width)

Essence: The LTC4215IGN#PBF is a power management IC designed to provide overvoltage and undervoltage protection, as well as act as an ideal diode controller with adjustable current limit and thermal shutdown protection.

Packaging/Quantity: The LTC4215IGN#PBF is available in a 16-SSOP package and is typically sold in reels of 2500 units.

Specifications

  • Input Voltage Range: 2.9V to 36V
  • Overvoltage Threshold: Adjustable from 2.5V to 36V
  • Undervoltage Threshold: Adjustable from 2.5V to 36V
  • Current Limit Range: 10mA to 1000mA
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC4215IGN#PBF has the following pin configuration:

  1. VIN: Input voltage pin
  2. VOUT: Output voltage pin
  3. GATE: Gate drive output for external N-channel MOSFET
  4. FB: Feedback pin for adjusting overvoltage and undervoltage thresholds
  5. ILIM: Current limit adjustment pin
  6. PG: Power good indicator pin
  7. OV: Overvoltage fault indicator pin
  8. UV: Undervoltage fault indicator pin
  9. GND: Ground pin

Functional Features

  • Overvoltage Protection: The LTC4215IGN#PBF monitors the input voltage and shuts off the external MOSFET when it exceeds the adjustable overvoltage threshold.
  • Undervoltage Protection: The IC also provides undervoltage protection by shutting off the MOSFET when the input voltage falls below the adjustable undervoltage threshold.
  • Ideal Diode Controller: The LTC4215IGN#PBF acts as an ideal diode controller, allowing for low-loss power path selection between the input and output.
  • Adjustable Current Limit: The current limit can be adjusted using the ILIM pin to protect the load from excessive current.
  • Thermal Shutdown Protection: The IC includes thermal shutdown protection to prevent damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - Provides overvoltage and undervoltage protection - Acts as an ideal diode controller - Adjustable current limit - Thermal shutdown protection ensures safe operation - Wide input voltage range

Disadvantages: - Limited to N-channel MOSFET applications - Requires external components for complete functionality

Working Principles

The LTC4215IGN#PBF works by monitoring the input voltage and comparing it to the adjustable overvoltage and undervoltage thresholds. When the input voltage exceeds the overvoltage threshold, the external MOSFET is turned off, protecting the load. Similarly, when the input voltage falls below the undervoltage threshold, the MOSFET is also turned off. The IC also acts as an ideal diode controller, ensuring low-loss power path selection. The current limit can be adjusted using the ILIM pin, and thermal shutdown protection prevents damage due to excessive temperature.

Detailed Application Field Plans

The LTC4215IGN#PBF is commonly used in various applications where overvoltage and undervoltage protection, ideal diode control, and adjustable current limit are required. Some of the typical application fields include:

  1. Power Supplies: The IC can be used in power supply designs to protect sensitive components from voltage fluctuations and provide efficient power path selection.
  2. Battery Management: It is suitable for battery management systems, ensuring safe charging and discharging operations by protecting against overvoltage and undervoltage conditions.
  3. Industrial Control Systems: The LTC4215IGN#PBF finds applications in industrial control systems where reliable power management and protection are crucial.
  4. Automotive Electronics: It can be utilized in automotive electronics to safeguard critical components from voltage spikes and drops.

Detailed and Complete Alternative Models

  1. LTC4215CGN#PBF: Similar to LTC4215IGN#PBF but available in a 16-SSOP package with a different pin configuration.
  2. LTC4215IS6#TRMPBF: SOT-23 package variant of LTC4215IGN#PBF with a smaller form factor.
  3. LTC4215EGN#PBF: 16-SSOP package variant with extended temperature range (-40°C to 125°C).

These alternative models offer similar functionality and features as the LTC4215IGN#PBF but may differ in

技術ソリューションにおける LTC4215IGN#PBF の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of LTC4215IGN#PBF in technical solutions:

  1. Question: What is LTC4215IGN#PBF?
    Answer: LTC4215IGN#PBF is a power management IC (integrated circuit) designed for hot-swappable applications, providing protection and control for power supplies.

  2. Question: What are the key features of LTC4215IGN#PBF?
    Answer: Some key features include overvoltage protection, undervoltage lockout, current limiting, thermal shutdown, and fault reporting.

  3. Question: How does LTC4215IGN#PBF provide overvoltage protection?
    Answer: LTC4215IGN#PBF monitors the voltage across an external sense resistor and limits the output voltage if it exceeds a set threshold, protecting downstream components.

  4. Question: Can LTC4215IGN#PBF handle high currents?
    Answer: Yes, LTC4215IGN#PBF can handle high currents up to 5A, making it suitable for various power supply applications.

  5. Question: What is undervoltage lockout (UVLO)?
    Answer: UVLO is a feature that ensures the input voltage is within a specified range before enabling the output, preventing operation at insufficient voltages.

  6. Question: How does LTC4215IGN#PBF implement current limiting?
    Answer: LTC4215IGN#PBF uses a sense resistor to monitor the load current and limits it to a safe level by reducing the output voltage.

  7. Question: What happens if the temperature exceeds the safe operating limit?
    Answer: If the temperature exceeds the safe operating limit, LTC4215IGN#PBF will activate thermal shutdown, disabling the output until the temperature decreases.

  8. Question: Can LTC4215IGN#PBF report faults?
    Answer: Yes, LTC4215IGN#PBF has a fault reporting feature that can indicate various fault conditions such as overvoltage, undervoltage, and thermal shutdown.

  9. Question: What are the typical applications of LTC4215IGN#PBF?
    Answer: LTC4215IGN#PBF is commonly used in hot-swappable power supplies, redundant power systems, telecom equipment, industrial automation, and server applications.

  10. Question: Is LTC4215IGN#PBF available in different package options?
    Answer: Yes, LTC4215IGN#PBF is available in an 8-pin SOIC (Small Outline Integrated Circuit) package, making it easy to integrate into various circuit designs.

Please note that the specific details and answers may vary depending on the manufacturer's documentation and application requirements.