LTC4218CGN#TRPBF
Product Overview
Category: Integrated Circuit (IC)
Use: Power Management
Characteristics: - High Voltage Ideal Diode Controller - Low Quiescent Current - Wide Input Voltage Range - Adjustable Overcurrent Threshold - Reverse Current Blocking - Fault Indicator Output - Thermal Shutdown Protection
Package: 16-Lead SSOP (Shrink Small Outline Package)
Essence: The LTC4218CGN#TRPBF is an integrated circuit that functions as a high voltage ideal diode controller. It provides reverse current blocking and overcurrent protection in power management applications.
Packaging/Quantity: The LTC4218CGN#TRPBF is available in a 16-Lead SSOP package. The quantity per reel is 2500 units.
Specifications
- Input Voltage Range: 2.9V to 60V
- Overcurrent Threshold Range: 1mV to 100mV
- Fault Indicator Output Voltage: 5V
- Operating Temperature Range: -40°C to 85°C
Detailed Pin Configuration
The LTC4218CGN#TRPBF has the following pin configuration:
- GATE: Gate Drive Output
- VIN: Input Voltage
- VOUT: Output Voltage
- FB: Feedback Input
- OCSET: Overcurrent Threshold Set
- FLT: Fault Indicator Output
- GND: Ground
- GND: Ground
- GND: Ground
- GND: Ground
- GND: Ground
- GND: Ground
- GND: Ground
- GND: Ground
- GND: Ground
- GND: Ground
Functional Features
- Controls an external N-channel MOSFET to function as an ideal diode
- Provides reverse current blocking to prevent backflow of current
- Adjustable overcurrent threshold for customized protection
- Fault indicator output signals overcurrent or thermal shutdown conditions
Advantages and Disadvantages
Advantages: - Wide input voltage range allows for versatile applications - Low quiescent current minimizes power consumption - Adjustable overcurrent threshold provides flexibility in protection settings - Reverse current blocking prevents damage to the power source
Disadvantages: - Limited to power management applications - Requires external N-channel MOSFET for operation
Working Principles
The LTC4218CGN#TRPBF controls an external N-channel MOSFET to act as an ideal diode. It monitors the voltage across the MOSFET and adjusts the gate drive to maintain a low voltage drop, similar to a diode. The device also incorporates reverse current blocking to prevent current flow in the opposite direction. In case of overcurrent or thermal shutdown, the fault indicator output is activated.
Detailed Application Field Plans
The LTC4218CGN#TRPBF can be used in various power management applications, including: 1. Battery charging systems 2. Power supply redundancy circuits 3. Load sharing circuits 4. Hot-swappable power sources 5. Uninterruptible power supplies (UPS) 6. Industrial control systems
Detailed and Complete Alternative Models
- LTC4359: Ideal Diode Controller with Reverse Input Protection
- LTC4364: Overvoltage and Overcurrent Protection Controller
- LTC4370: Dual Ideal Diode Controller with Reverse Input Protection
- LTC4412: Low Loss PowerPath Controller
These alternative models offer similar functionality and can be considered as alternatives to the LTC4218CGN#TRPBF.
Word count: 409 words
רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של LTC4218CGN#TRPBF בפתרונות טכניים
Sure! Here are 10 common questions and answers related to the application of LTC4218CGN#TRPBF in technical solutions:
Q: What is LTC4218CGN#TRPBF? A: LTC4218CGN#TRPBF is a power management IC (integrated circuit) designed for hot-swappable applications, providing protection and control for power supplies.
Q: What are the key features of LTC4218CGN#TRPBF? A: Some key features include overcurrent protection, undervoltage lockout, adjustable current limit, fault reporting, and thermal shutdown.
Q: How does LTC4218CGN#TRPBF provide overcurrent protection? A: LTC4218CGN#TRPBF monitors the voltage drop across an external sense resistor to detect excessive current flow and triggers a fault condition if the current exceeds the set limit.
Q: Can LTC4218CGN#TRPBF be used for hot-swapping batteries or power supplies? A: Yes, LTC4218CGN#TRPBF is specifically designed for hot-swappable applications, making it suitable for safely connecting and disconnecting batteries or power supplies.
Q: How can I adjust the current limit with LTC4218CGN#TRPBF? A: The current limit can be adjusted by selecting an appropriate value for the external sense resistor connected to the ISET pin of LTC4218CGN#TRPBF.
Q: Does LTC4218CGN#TRPBF provide any fault reporting capabilities? A: Yes, LTC4218CGN#TRPBF has a fault output pin that can be used to indicate various fault conditions such as overcurrent, undervoltage, or thermal shutdown.
Q: Can LTC4218CGN#TRPBF handle high voltage applications? A: Yes, LTC4218CGN#TRPBF can handle input voltages up to 80V, making it suitable for a wide range of high voltage applications.
Q: Is thermal shutdown protection available in LTC4218CGN#TRPBF? A: Yes, LTC4218CGN#TRPBF includes thermal shutdown protection, which activates if the chip temperature exceeds a certain threshold.
Q: What is undervoltage lockout (UVLO) and does LTC4218CGN#TRPBF support it? A: Undervoltage lockout is a feature that ensures proper operation of the IC by disabling it when the input voltage falls below a specified threshold. LTC4218CGN#TRPBF supports UVLO.
Q: Are there any application notes or reference designs available for LTC4218CGN#TRPBF? A: Yes, Linear Technology (now part of Analog Devices) provides application notes and reference designs on their website, which can help with the implementation of LTC4218CGN#TRPBF in various technical solutions.
Please note that the answers provided here are general and may vary depending on the specific requirements and use cases. It is always recommended to refer to the datasheet and documentation provided by the manufacturer for accurate information.