LTC4417IGN#PBF

Product Overview

Category: Integrated Circuits (ICs)

Use: Power Management IC

Characteristics: - Ideal diode controller - Low voltage drop - Reverse input protection - Overvoltage protection - Undervoltage lockout - Adjustable current limit - Fault flag output - Wide operating temperature range

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

Essence: The LTC4417IGN#PBF is an integrated circuit that functions as an ideal diode controller. It provides low voltage drop and various protection features, making it suitable for power management applications.

Packaging/Quantity: The LTC4417IGN#PBF is available in a 16-SSOP package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.5V to 36V
• Operating Temperature Range: -40°C to 85°C
• Quiescent Current: 25µA
• Maximum Continuous Current: 4A
• Reverse Leakage Current: 1µA
• Fault Flag Threshold: 10% below the input voltage

Detailed Pin Configuration

The LTC4417IGN#PBF has the following pin configuration:

1. GATE: Gate drive output for external N-channel MOSFET
2. VIN: Input voltage
3. VOUT: Output voltage
4. FLT: Fault flag output
5. ILIM: Current limit adjustment
6. GND: Ground
7. NC: No connection
8. NC: No connection
9. NC: No connection
10. NC: No connection
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• Ideal diode behavior with low voltage drop
• Reverse input protection prevents damage from reverse polarity
• Overvoltage protection safeguards against excessive input voltage
• Undervoltage lockout prevents operation below a specified voltage
• Adjustable current limit allows customization for different applications
• Fault flag output indicates abnormal conditions
• Wide operating temperature range ensures reliability in various environments

Advantages and Disadvantages

Advantages: - Low voltage drop minimizes power loss - Comprehensive protection features enhance system reliability - Adjustable current limit provides flexibility - Fault flag output aids in fault diagnosis - Wide operating temperature range enables usage in extreme conditions

Disadvantages: - Limited maximum continuous current (4A) - Requires an external N-channel MOSFET for operation

Working Principles

The LTC4417IGN#PBF operates as an ideal diode controller by utilizing an external N-channel MOSFET. It controls the MOSFET's gate drive to emulate the behavior of a diode with minimal voltage drop. The device incorporates various protection features such as reverse input protection, overvoltage protection, and undervoltage lockout to safeguard the circuitry. The adjustable current limit allows users to set the desired current threshold. The fault flag output signals abnormal conditions, aiding in fault diagnosis.

Detailed Application Field Plans

The LTC4417IGN#PBF is commonly used in power management applications where low voltage drop and protection features are crucial. Some specific application fields include:

1. Battery-powered devices: The LTC4417IGN#PBF can be used to protect battery-powered systems from reverse polarity and overvoltage conditions, ensuring safe and efficient operation.

2. Automotive electronics: In automotive applications, the LTC4417IGN#PBF can provide reverse input protection and overvoltage protection, preventing damage to sensitive electronic components.

3. Industrial equipment: The device's adjustable current limit makes it suitable for various industrial equipment, allowing customization based on specific power requirements.

4. Renewable energy systems: The LTC4417IGN#PBF can be utilized in renewable energy systems to protect against reverse polarity and overvoltage situations, ensuring reliable and efficient power management.

Detailed and Complete Alternative Models

1. LTC4359: Ideal diode controller with reverse input protection and adjustable current limit. It operates at a higher maximum continuous current of 10A.

2. LT4356: Ideal diode controller with reverse input protection, overvoltage protection, and adjustable current limit. It offers a wider input voltage range and a higher maximum continuous current of 8A.

3. LTC4370: Ideal diode controller with reverse input protection, overvoltage protection, and adjustable current limit. It features a fault flag output and a higher maximum continuous current of 6A.

4. LT4320: Ideal diode bridge controller with reverse input protection and adjustable current limit. It is designed for applications requiring multiple ideal diodes.

These alternative models provide similar