ON Semiconductor
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NCP1072STBT3G
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NCP1072STBT3G

Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Low standby power consumption - Wide input voltage range - Overvoltage and overcurrent protection - Thermal shutdown protection

Package: SOT-223

Essence: The NCP1072STBT3G is a high-performance integrated circuit designed for power management applications. It offers efficient power conversion with low standby power consumption, making it suitable for various electronic devices.

Packaging/Quantity: The NCP1072STBT3G is available in a SOT-223 package. The quantity per reel is typically 2500 units.

Specifications

The NCP1072STBT3G has the following specifications:

  • Input Voltage Range: 7 V to 25 V
  • Output Voltage Range: 5 V to 24 V
  • Maximum Output Current: 1 A
  • Switching Frequency: 65 kHz to 100 kHz
  • Operating Temperature Range: -40°C to +125°C

Pin Configuration

The NCP1072STBT3G has the following pin configuration:

  1. VIN (Input Voltage)
  2. GND (Ground)
  3. FB (Feedback)
  4. COMP (Compensation)
  5. CS (Current Sense)
  6. SS (Soft Start)
  7. VCC (Supply Voltage)
  8. VOUT (Output Voltage)

Functional Features

The NCP1072STBT3G offers the following functional features:

  • Pulse Frequency Modulation (PFM) control mode for improved efficiency at light loads
  • Cycle-by-cycle current limit protection
  • Overvoltage protection (OVP)
  • Overcurrent protection (OCP)
  • Thermal shutdown protection (TSD)
  • Soft start function for controlled startup

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Low standby power consumption - Wide input voltage range for versatility - Built-in protection features for enhanced reliability - Compact SOT-223 package for space-constrained applications

Disadvantages: - Limited maximum output current (1 A) - Requires external components for complete power management solution

Working Principles

The NCP1072STBT3G operates on the principle of pulse frequency modulation (PFM) control. It regulates the output voltage by adjusting the switching frequency based on the load conditions. At light loads, it switches to PFM mode, reducing the switching frequency to improve efficiency. At higher loads, it switches to pulse width modulation (PWM) mode for better regulation.

Application Field Plans

The NCP1072STBT3G is commonly used in various power management applications, including but not limited to:

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

Alternative Models

Here are some alternative models that offer similar functionality to the NCP1072STBT3G:

  1. LM2576-ADJ
  2. TPS5430
  3. LT1370
  4. MC34063A
  5. MAX1771

These models can be considered as alternatives depending on specific requirements and design constraints.

In conclusion, the NCP1072STBT3G is a versatile integrated circuit designed for efficient power management applications. With its high efficiency, low standby power consumption, and built-in protection features, it offers reliable performance in various electronic devices.

רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של NCP1072STBT3G בפתרונות טכניים

Sure! Here are 10 common questions and answers related to the application of NCP1072STBT3G in technical solutions:

  1. Q: What is NCP1072STBT3G? A: NCP1072STBT3G is a high-performance, fixed-frequency current-mode controller designed for offline flyback converters.

  2. Q: What are the key features of NCP1072STBT3G? A: Some key features include integrated 700V MOSFET, adjustable switching frequency, built-in protections, and low standby power consumption.

  3. Q: What is the typical input voltage range for NCP1072STBT3G? A: The typical input voltage range is from 85V AC to 265V AC.

  4. Q: Can NCP1072STBT3G be used in both isolated and non-isolated applications? A: Yes, NCP1072STBT3G can be used in both isolated and non-isolated applications.

  5. Q: How does NCP1072STBT3G provide overvoltage protection? A: NCP1072STBT3G provides overvoltage protection by monitoring the feedback voltage and shutting down the converter when it exceeds a certain threshold.

  6. Q: Does NCP1072STBT3G have built-in short-circuit protection? A: Yes, NCP1072STBT3G has built-in short-circuit protection that limits the output current during a fault condition.

  7. Q: What is the maximum output power that can be achieved with NCP1072STBT3G? A: The maximum output power depends on the specific design and application, but it can typically reach up to 25W.

  8. Q: Can NCP1072STBT3G operate in continuous or discontinuous conduction mode? A: NCP1072STBT3G can operate in both continuous and discontinuous conduction modes, depending on the load conditions.

  9. Q: Is NCP1072STBT3G suitable for low-power applications? A: Yes, NCP1072STBT3G is suitable for low-power applications as it has a low standby power consumption and can operate efficiently at light loads.

  10. Q: What are some typical applications of NCP1072STBT3G? A: Some typical applications include LED lighting, auxiliary power supplies, home appliances, and industrial control systems.

Please note that these answers are general and may vary depending on the specific design and requirements of your technical solution.