ON Semiconductor
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NCP1217P100G
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NCP1217P100G

Overview

Category: Integrated Circuit (IC)

Use: Power Management

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

Package: TO-220

Essence: The NCP1217P100G is a high-performance integrated circuit designed for power management applications. It offers efficient power conversion, low standby power consumption, and various protection features.

Packaging/Quantity: The NCP1217P100G is available in a TO-220 package. It is typically sold in reels or tubes containing multiple units.

Specifications

  • Input Voltage Range: 8V to 20V
  • Output Voltage: 5V
  • Maximum Output Current: 1A
  • Switching Frequency: 100kHz
  • Operating Temperature Range: -40°C to +125°C

Pin Configuration

The NCP1217P100G has the following pin configuration:

  1. VCC: Power supply input
  2. GND: Ground reference
  3. FB: Feedback pin for output voltage regulation
  4. COMP: Compensation pin for stability control
  5. CS: Current sense pin for current limit protection
  6. SS: Soft-start pin for controlled startup
  7. EN: Enable pin for on/off control
  8. VOUT: Output voltage

Functional Features

  • Constant output voltage regulation
  • Overvoltage protection
  • Thermal shutdown protection
  • Soft-start for controlled startup
  • Current limit protection

Advantages

  • High efficiency power conversion
  • Low standby power consumption
  • Wide input voltage range allows for versatile applications
  • Built-in protection features enhance system reliability
  • Compact TO-220 package for easy integration

Disadvantages

  • Limited maximum output current (1A)
  • Fixed output voltage (5V)

Working Principles

The NCP1217P100G is a pulse width modulation (PWM) controller IC. It operates by regulating the duty cycle of the switching transistor to maintain a constant output voltage. The feedback pin (FB) compares the actual output voltage with a reference voltage, adjusting the duty cycle accordingly. The current sense pin (CS) monitors the output current and triggers current limit protection if necessary. The enable pin (EN) allows for on/off control of the IC.

Detailed Application Field Plans

The NCP1217P100G is commonly used in various power management applications, including:

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

Alternative Models

  1. NCP1216P100G: Similar specifications and features, but with a different package (SOIC-8).
  2. NCP1217P050G: Lower output voltage (5V) and lower maximum output current (500mA).
  3. NCP1218P100G: Higher output voltage (12V) and higher maximum output current (1.5A).

These alternative models provide flexibility in choosing the most suitable IC for specific application requirements.

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10 domande e risposte comuni relative all'applicazione di NCP1217P100G nelle soluzioni tecniche

Sure! Here are 10 common questions and answers related to the application of NCP1217P100G in technical solutions:

  1. Q: What is NCP1217P100G? A: NCP1217P100G is a power management IC (Integrated Circuit) designed for offline flyback converters.

  2. Q: What is the typical input voltage range for NCP1217P100G? A: The typical input voltage range for NCP1217P100G is from 85V AC to 265V AC.

  3. Q: What is the maximum output power that can be achieved using NCP1217P100G? A: NCP1217P100G can support a maximum output power of 100W.

  4. Q: Can NCP1217P100G be used in both isolated and non-isolated applications? A: Yes, NCP1217P100G can be used in both isolated and non-isolated applications.

  5. Q: Does NCP1217P100G have built-in protection features? A: Yes, NCP1217P100G has built-in protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.

  6. Q: What is the switching frequency range of NCP1217P100G? A: The switching frequency range of NCP1217P100G is typically between 20kHz and 100kHz.

  7. Q: Can NCP1217P100G operate in continuous or discontinuous conduction mode? A: NCP1217P100G can operate in both continuous and discontinuous conduction mode.

  8. Q: Is NCP1217P100G suitable for low-power applications? A: No, NCP1217P100G is designed for medium to high-power applications and may not be suitable for low-power applications.

  9. Q: What are the typical applications of NCP1217P100G? A: NCP1217P100G is commonly used in applications such as LED lighting, power adapters, and industrial power supplies.

  10. Q: Does NCP1217P100G require an external MOSFET for operation? A: Yes, NCP1217P100G requires an external MOSFET for switching operation.

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