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NCP1395ADR2G
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NCP1395ADR2G

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High-performance PWM controller - Designed for offline flyback converters - Provides precise control of the output voltage and current - Offers protection features for safe operation

Package: SOIC-8

Essence: The NCP1395ADR2G is a high-performance PWM controller used in offline flyback converters. It provides precise control of the output voltage and current, ensuring efficient power management.

Packaging/Quantity: The NCP1395ADR2G is available in a standard SOIC-8 package. It is typically sold in reels containing 2500 units.

Specifications

  • Input Voltage Range: 9V to 20V
  • Output Voltage Range: 5V to 24V
  • Maximum Output Current: 1A
  • Frequency Range: 50kHz to 200kHz
  • Operating Temperature Range: -40°C to +125°C

Pin Configuration

The NCP1395ADR2G has the following pin configuration:

  1. VCC: Power supply input
  2. GND: Ground reference
  3. FB: Feedback pin for output voltage regulation
  4. CS: Current sense input for output current regulation
  5. COMP: Compensation pin for stability control
  6. RT: Timing resistor connection for frequency adjustment
  7. CT: Timing capacitor connection for frequency adjustment
  8. DRAIN: Switching transistor drain connection

Functional Features

  • Precise voltage and current regulation
  • Overvoltage protection
  • Overcurrent protection
  • Undervoltage lockout
  • Soft-start function for controlled startup
  • Frequency jittering for reduced EMI emissions
  • Adaptive gate drive for improved efficiency

Advantages and Disadvantages

Advantages: - High-performance PWM controller - Precise control of output voltage and current - Protection features for safe operation - Efficient power management

Disadvantages: - Limited maximum output current (1A) - Requires external components for complete circuit implementation

Working Principles

The NCP1395ADR2G operates as a pulse-width modulation (PWM) controller in offline flyback converters. It regulates the output voltage and current by controlling the switching transistor's duty cycle. By adjusting the duty cycle, the controller maintains the desired output voltage and current levels.

The controller incorporates various protection features such as overvoltage protection, overcurrent protection, and undervoltage lockout to ensure safe operation. It also includes a soft-start function for controlled startup, frequency jittering for reduced electromagnetic interference (EMI) emissions, and adaptive gate drive for improved efficiency.

Detailed Application Field Plans

The NCP1395ADR2G is commonly used in various applications, including:

  1. Power supplies for consumer electronics
  2. LED lighting systems
  3. Battery chargers
  4. Industrial automation equipment
  5. Telecommunication devices

Its precise voltage and current regulation, along with its protection features, make it suitable for these applications where efficient power management is crucial.

Detailed and Complete Alternative Models

  1. NCP1396ADR2G
  2. NCP1397ADR2G
  3. NCP1398ADR2G
  4. NCP1399ADR2G

These alternative models offer similar functionality and characteristics to the NCP1395ADR2G. They can be considered as alternatives based on specific application requirements or availability.

기술 솔루션에 NCP1395ADR2G 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of NCP1395ADR2G in technical solutions:

  1. Q: What is NCP1395ADR2G? A: NCP1395ADR2G is a voltage mode controller IC used for offline power supplies in various applications.

  2. Q: What are the key features of NCP1395ADR2G? A: Some key features include high-voltage startup, built-in protections, adjustable frequency, and soft-start function.

  3. Q: What is the typical input voltage range for NCP1395ADR2G? A: The typical input voltage range is between 85V and 265V AC.

  4. Q: Can NCP1395ADR2G be used in both flyback and forward converter topologies? A: Yes, NCP1395ADR2G can be used in both flyback and forward converter topologies.

  5. Q: What is the maximum switching frequency supported by NCP1395ADR2G? A: The maximum switching frequency supported is typically around 500 kHz.

  6. Q: Does NCP1395ADR2G have any built-in protection features? A: Yes, NCP1395ADR2G has built-in protections such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.

  7. Q: How can I adjust the output voltage using NCP1395ADR2G? A: The output voltage can be adjusted by changing the feedback resistors connected to the FB pin.

  8. Q: Can NCP1395ADR2G operate in a wide temperature range? A: Yes, NCP1395ADR2G can operate in a wide temperature range, typically from -40°C to 125°C.

  9. Q: What is the typical efficiency of NCP1395ADR2G? A: The typical efficiency of NCP1395ADR2G depends on the specific application and design, but it can achieve high efficiencies above 90%.

  10. Q: Are there any reference designs or application notes available for NCP1395ADR2G? A: Yes, ON Semiconductor provides reference designs and application notes that can help in implementing NCP1395ADR2G in various technical solutions.

Please note that these answers are general and may vary depending on the specific application and design considerations.