LTC4218IDHC-12#PBF

Product Overview

Category

The LTC4218IDHC-12#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 distribution and protection in various electronic devices and systems.

Characteristics

• Integrated power distribution and protection functions
• High efficiency and low power dissipation
• Wide input voltage range
• Overcurrent and overvoltage protection
• Adjustable current limit and fault response time
• Thermal shutdown protection

Package

The LTC4218IDHC-12#PBF is available in a 16-pin ceramic leadless chip carrier (LCC) package.

Essence

The essence of this product lies in its ability to efficiently manage power distribution and provide protection against faults, ensuring the safe operation of electronic devices.

Packaging/Quantity

The LTC4218IDHC-12#PBF is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 2.9V to 36V
• Output Voltage Range: 0V to 36V
• Maximum Continuous Current: 5A
• Fault Response Time: Adjustable from 1μs to 100ms
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC4218IDHC-12#PBF features a 16-pin LCC package with the following pin configuration:

1. VIN: Input voltage
2. GND: Ground reference
3. FLT: Fault output
4. ILIM: Current limit adjustment
5. VOUT: Output voltage
6. EN: Enable control
7. PG: Power good indicator
8. SENSE+: Positive sense input
9. SENSE-: Negative sense input
10. VREF: Reference voltage
11. FB: Feedback input
12. SS: Soft-start capacitor
13. OCSET: Overcurrent threshold adjustment
14. OVSET: Overvoltage threshold adjustment
15. TSD: Thermal shutdown indicator
16. NC: No connection

Functional Features

1. Integrated Power Distribution: The LTC4218IDHC-12#PBF combines power distribution and protection functions in a single IC, simplifying system design.

2. Overcurrent and Overvoltage Protection: The device monitors the output current and voltage, providing protection against excessive current or voltage levels.

3. Adjustable Current Limit: The current limit can be adjusted to suit specific application requirements, allowing flexibility in power management.

4. Fault Response Time Adjustment: The fault response time can be adjusted to optimize the system's response to faults, balancing protection and performance.

5. Thermal Shutdown Protection: The LTC4218IDHC-12#PBF includes thermal shutdown protection, preventing damage due to excessive temperature.

Advantages and Disadvantages

Advantages

• Integration of power distribution and protection functions reduces component count and board space.
• Wide input voltage range allows compatibility with various power sources.
• Adjustable current limit and fault response time provide customization options.
• High efficiency and low power dissipation contribute to energy savings.
• Thermal shutdown protection ensures safe operation even under high-temperature conditions.

Disadvantages

• Limited maximum continuous current may not be suitable for high-power applications.
• The 16-pin LCC package may require specialized assembly techniques.

Working Principles

The LTC4218IDHC-12#PBF operates by monitoring the input voltage, output voltage, and current. It compares these values to predefined thresholds and responds accordingly. If an overcurrent or overvoltage condition is detected, the device quickly shuts down the power path to protect the load. The fault response time and current limit can be adjusted to optimize performance and protection.

Detailed Application Field Plans

The LTC4218IDHC-12#PBF finds applications in various fields, including:

1. Industrial Automation: Power distribution and protection in control systems, motor drives, and PLCs.
2. Telecommunications: Power management for network equipment, routers, and switches.
3. Automotive Electronics: Protection and distribution of power in automotive systems, such as infotainment units and advanced driver-assistance systems (ADAS).
4. Consumer Electronics: Power management in portable devices, home appliances, and audio/video equipment.
5. Renewable Energy: Power distribution and protection in solar inverters and wind turbine systems.

Detailed and Complete Alternative Models

1. LTC4218IDHC-5#PBF: Similar to LTC4218IDHC-12#PBF but with a maximum continuous current of 5A.
2. LTC4218IDHC-15#PBF: Similar to LTC4218IDHC-12#PBF but with a maximum continuous current of 15A.
3. LTC4218