ON Semiconductor
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NCP1054ST100T3
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NCP1054ST100T3

Product Overview

Category

NCP1054ST100T3 belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various power supply designs, including switch-mode power supplies (SMPS), battery chargers, and LED drivers.

Characteristics

  • High efficiency: The NCP1054ST100T3 offers high efficiency conversion, minimizing power losses.
  • Wide input voltage range: It can operate with a wide input voltage range, making it suitable for different power supply applications.
  • Protection features: The IC incorporates various protection mechanisms such as overvoltage protection, overcurrent protection, and thermal shutdown.
  • Low standby power consumption: It has low standby power consumption, contributing to energy-saving designs.

Package

The NCP1054ST100T3 is available in a small outline transistor (SOT-223) package. This package provides good thermal dissipation and ease of mounting on printed circuit boards (PCBs).

Essence

The essence of NCP1054ST100T3 lies in its ability to regulate and control power supply voltages efficiently, ensuring stable and reliable operation of electronic devices.

Packaging/Quantity

The IC is typically sold in reels or tubes, containing a specific quantity of units per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

  • Input Voltage Range: 8V to 30V
  • Output Voltage Range: 1V to 20V
  • Maximum Output Current: 1A
  • Switching Frequency: 100 kHz to 500 kHz
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The NCP1054ST100T3 IC has the following pin configuration:

  1. VCC: Power supply input pin.
  2. GND: Ground reference pin.
  3. FB: Feedback pin for regulating the output voltage.
  4. COMP: Compensation pin for stability control.
  5. CS: Current sense pin for current limit protection.
  6. SS/TR: Soft-start/Shutdown pin for controlling startup and shutdown operations.
  7. DRAIN: Switching transistor drain pin.
  8. VCCSENSE: Voltage sensing pin for monitoring the input voltage.

Functional Features

  • Constant voltage (CV) and constant current (CC) operation modes.
  • Cycle-by-cycle current limiting for overcurrent protection.
  • Frequency foldback for improved efficiency at light loads.
  • Adjustable soft-start time to reduce inrush current during startup.
  • Built-in leading-edge blanking for enhanced noise immunity.

Advantages and Disadvantages

Advantages

  • High efficiency conversion reduces power losses.
  • Wide input voltage range allows for versatile applications.
  • Comprehensive protection features enhance system reliability.
  • Low standby power consumption contributes to energy savings.

Disadvantages

  • Limited maximum output current of 1A may not be suitable for high-power applications.
  • Requires external components for a complete power supply design.

Working Principles

The NCP1054ST100T3 operates as a pulse width modulation (PWM) controller. It regulates the output voltage by adjusting the duty cycle of the switching transistor. The feedback pin (FB) compares the output voltage with a reference voltage, and the error signal is used to adjust the duty cycle accordingly. This control mechanism ensures a stable output voltage under varying load conditions.

Detailed Application Field Plans

The NCP1054ST100T3 finds applications in various fields, including: 1. Power supplies for consumer electronics such as televisions, audio systems, and computer peripherals. 2. Battery chargers for mobile devices, laptops, and electric vehicles. 3. LED drivers for lighting applications, both residential and commercial. 4. Industrial power supplies for automation systems, motor drives, and control circuits.

Detailed and Complete Alternative Models

  1. NCP1014AP065G: Similar PWM controller with a lower maximum output current of 650mA.
  2. NCP1027P065G: PWM controller with integrated power factor correction (PFC) functionality.
  3. NCP1034DR2G: PWM controller with adjustable frequency and integrated protection features.

These alternative models offer similar functionality to the NCP1054ST100T3 but may have different specifications or additional features depending on the specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací NCP1054ST100T3 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of NCP1054ST100T3 in technical solutions:

  1. Q: What is NCP1054ST100T3? A: NCP1054ST100T3 is a specific model of integrated circuit (IC) designed for power management applications.

  2. Q: What are the typical applications of NCP1054ST100T3? A: NCP1054ST100T3 is commonly used in various technical solutions such as power supplies, battery chargers, LED drivers, and other low-power applications.

  3. Q: What is the input voltage range supported by NCP1054ST100T3? A: The input voltage range of NCP1054ST100T3 typically ranges from 7V to 30V.

  4. Q: What is the output voltage range of NCP1054ST100T3? A: The output voltage range of NCP1054ST100T3 can be adjusted based on the external components used, but it is generally between 1.23V and 37V.

  5. Q: What is the maximum output current that NCP1054ST100T3 can handle? A: NCP1054ST100T3 has a maximum output current capability of 100mA.

  6. Q: Does NCP1054ST100T3 have built-in protection features? A: Yes, NCP1054ST100T3 includes various protection features like overcurrent protection, thermal shutdown, and under-voltage lockout.

  7. Q: Can NCP1054ST100T3 operate in a wide temperature range? A: Yes, NCP1054ST100T3 is designed to operate reliably in a wide temperature range, typically from -40°C to 125°C.

  8. Q: What is the efficiency of NCP1054ST100T3? A: The efficiency of NCP1054ST100T3 depends on the specific application and external components used, but it can achieve high efficiencies in power management solutions.

  9. Q: Is NCP1054ST100T3 suitable for battery-powered applications? A: Yes, NCP1054ST100T3 is commonly used in battery-powered applications due to its low-power consumption and efficient power management capabilities.

  10. Q: Are there any reference designs or application notes available for NCP1054ST100T3? A: Yes, the manufacturer of NCP1054ST100T3 provides reference designs and application notes that can help engineers in implementing the IC effectively in their technical solutions.

Please note that the answers provided here are general and may vary depending on the specific requirements and implementation of NCP1054ST100T3 in different applications.