IR2171STR

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2171STR is a high-performance power management IC designed for use in various electronic devices. It provides efficient control and regulation of power supply, making it suitable for applications requiring precise voltage and current management.

Characteristics: - High efficiency - Low power consumption - Compact size - Wide input voltage range - Multiple protection features

Package: The IR2171STR is available in a small outline package (SOP) with a specified pin configuration.

Essence: The essence of the IR2171STR lies in its ability to efficiently manage power supply, ensuring stable and reliable operation of electronic devices.

Packaging/Quantity: The IR2171STR is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

The specifications of the IR2171STR include:

• Input Voltage Range: 4.5V - 40V
• Output Voltage Range: 0.8V - 37V
• Maximum Output Current: 3A
• Operating Temperature Range: -40°C to 85°C
• Control Method: Pulse Width Modulation (PWM)
• Protection Features: Overcurrent protection, overvoltage protection, thermal shutdown

Pin Configuration

The IR2171STR features the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. VOUT (Output Voltage)
4. COMP (Compensation)
5. FB (Feedback)
6. EN (Enable)
7. SS (Soft Start)
8. PGND (Power Ground)

Functional Features

The IR2171STR offers the following functional features:

1. Efficient Power Conversion: The IC ensures high efficiency power conversion, minimizing energy loss and maximizing battery life.
2. Voltage Regulation: It provides precise voltage regulation, maintaining a stable output voltage even under varying load conditions.
3. Current Limiting: The IC incorporates overcurrent protection, preventing excessive current flow and protecting the device and connected components.
4. Protection Mechanisms: It includes built-in protection features such as overvoltage protection and thermal shutdown, safeguarding against voltage spikes and overheating.
5. Soft Start Function: The soft start feature allows for gradual power-up, reducing stress on the system during startup.

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Wide input voltage range - Multiple protection features ensure device safety - Compact size suitable for space-constrained applications

Disadvantages: - Limited maximum output current (3A) - Operating temperature range may not be suitable for extreme environments

Working Principles

The IR2171STR operates based on pulse width modulation (PWM) control. It regulates the output voltage by adjusting the duty cycle of the PWM signal. By continuously monitoring the feedback voltage, it adjusts the duty cycle to maintain a stable output voltage regardless of load variations.

Application Field Plans

The IR2171STR finds application in various electronic devices, including but not limited to: - Power supplies - Battery chargers - LED lighting systems - Industrial automation equipment - Automotive electronics

Alternative Models

For alternative options with similar functionality, the following models can be considered: - IR2172STR - IR2173STR - IR2174STR - IR2175STR

These models offer comparable features and specifications, providing flexibility in choosing the most suitable power management IC for specific applications.

In conclusion, the IR2171STR is a high-performance power management IC that offers efficient power conversion, precise voltage regulation, and multiple protection features. Its compact size and wide input voltage range make it suitable for various electronic devices. While it has limitations in terms of maximum output current and operating temperature range, alternative models are available to cater to specific requirements.