LTC4417HUF#PBF

Product Overview

Category

LTC4417HUF#PBF belongs to the category of power management integrated circuits (PMICs).

Use

This PMIC is primarily used for power path management in various electronic devices.

Characteristics

• Power path controller with low-loss ideal diode
• Wide input voltage range: 2.5V to 5.5V
• Low quiescent current: 20µA
• Reverse input protection up to -40V
• Adjustable overvoltage protection
• Fault flag output for system monitoring
• Small package size: SOT-23-6

Package and Quantity

The LTC4417HUF#PBF is available in a SOT-23-6 package. It is typically sold in reels or tubes, with a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Reverse Input Voltage Protection: -40V
• Quiescent Current: 20µA
• Overvoltage Protection Threshold: Adjustable
• Fault Flag Output: Yes
• Package Type: SOT-23-6

Pin Configuration

The LTC4417HUF#PBF has the following pin configuration:

```

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| | --| EN GND |-- Pin 1 --| VIN FLT |-- Pin 2 --| VOUT OUT |-- Pin 3 --| IN- |-- Pin 4 --| IN+ |-- Pin 5 --| GND |-- Pin 6 |___________| ```

Functional Features

• Power path management: The LTC4417HUF#PBF acts as a power path controller, allowing seamless switching between input power sources.
• Low-loss ideal diode: The integrated low-loss ideal diode ensures minimal voltage drop and efficient power transfer.
• Reverse input protection: The device provides reverse input voltage protection up to -40V, safeguarding the system from potential damage.
• Adjustable overvoltage protection: The overvoltage protection threshold can be adjusted to suit specific application requirements.
• Fault flag output: The fault flag output pin allows for system monitoring and fault detection.

Advantages and Disadvantages

Advantages

• Wide input voltage range enables compatibility with various power sources.
• Low quiescent current minimizes power consumption in standby mode.
• Small package size facilitates space-constrained designs.
• Adjustable overvoltage protection enhances flexibility in different applications.

Disadvantages

• Limited to a maximum input voltage of 5.5V, which may not be suitable for high-voltage applications.
• Lack of built-in thermal protection, requiring additional measures for temperature management.

Working Principles

The LTC4417HUF#PBF operates by continuously monitoring the input voltage and automatically selecting the appropriate power source. It utilizes an internal low-loss ideal diode to minimize voltage drop during power transfer. The device also incorporates reverse input protection to prevent damage caused by accidental polarity reversal. The adjustable overvoltage protection feature allows users to set a threshold beyond which the input voltage is clamped to protect downstream components. The fault flag output pin provides a signal for system monitoring and fault detection.

Application Field Plans

The LTC4417HUF#PBF finds applications in various electronic devices that require power path management, such as: 1. Battery-powered devices: Enables seamless switching between battery power and external power sources. 2. Portable electronics: Facilitates uninterrupted operation while charging the device. 3. Automotive systems: Protects sensitive components from reverse voltage and overvoltage conditions. 4. Industrial equipment: Ensures reliable power supply and protects against power source failures.

Alternative Models

1. LTC4417CUF#PBF: Similar to LTC4417HUF#PBF, but available in a different package (SOT-23-5).
2. LTC4417ES6#TRMPBF: Another variant with a slightly different pin configuration (TSOT-23-6).

These alternative models offer similar functionality and can be considered as substitutes for the LTC4417HUF#PBF in various applications.

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