NCP1075STAT3G

Product Overview

Use

This product is primarily used in various power supply systems, including but not limited to switch-mode power supplies (SMPS), battery chargers, and LED drivers.

Characteristics

High efficiency: The NCP1075STAT3G offers excellent power conversion efficiency, ensuring minimal energy loss during operation.
Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse power supply applications.
Low standby power consumption: The device features low standby power consumption, contributing to energy savings.
Protection features: The NCP1075STAT3G incorporates various protection mechanisms such as overvoltage protection, overcurrent protection, and thermal shutdown, ensuring safe and reliable operation.
Compact package: This IC is available in a small SOT-223 package, allowing for space-efficient designs.

Package and Quantity

The NCP1075STAT3G is packaged in a SOT-223 package. It is typically sold in reels containing a specified quantity of units, commonly 2500 pieces per reel.

Specifications

Input Voltage Range: 4.5V to 25V
Output Voltage Range: 0.8V to 20V
Maximum Output Current: 1.5A
Switching Frequency: 65kHz to 115kHz
Operating Temperature Range: -40°C to 125°C

Pin Configuration

The NCP1075STAT3G has the following pin configuration:

VCC: Power supply input
GND: Ground reference
FB: Feedback pin for output voltage regulation
COMP: Compensation pin for stability control
CS: Current sense pin for current limit control
SS: Soft-start pin for gradual power-up
EN: Enable pin for device activation

Functional Features

Constant voltage (CV) and constant current (CC) operation modes
Adjustable output voltage and current limits
Overvoltage protection (OVP)
Overcurrent protection (OCP)
Thermal shutdown protection
Soft-start function for smooth power-up
Frequency jittering for reduced electromagnetic interference (EMI)

Advantages and Disadvantages

Advantages

High efficiency leads to energy savings
Wide input voltage range allows for versatile applications
Compact package enables space-efficient designs
Comprehensive protection features ensure safe operation
Soft-start function prevents excessive inrush current

Disadvantages

Limited maximum output current of 1.5A may not be suitable for high-power applications
Fixed switching frequency may not be optimal for all designs

Working Principles

The NCP1075STAT3G operates as a pulse width modulation (PWM) controller. It regulates the output voltage by adjusting the duty cycle of the internal power switch. The feedback loop compares the output voltage with a reference voltage, and any deviation is corrected by adjusting the duty cycle accordingly. The device also incorporates various protection mechanisms to safeguard against overvoltage, overcurrent, and thermal issues.

Detailed Application Field Plans

The NCP1075STAT3G finds application in a wide range of power supply systems, including: - AC-DC power adapters - LED lighting drivers - Battery chargers - Industrial power supplies - Telecom power modules - Consumer electronics

Alternative Models

Here are some alternative models that can be considered as substitutes for the NCP1075STAT3G: - LM2576-ADJ - TPS5430 - LT1370

These alternatives offer similar functionality and can be used in various power management applications.

In conclusion, the NCP1075STAT3G is a highly efficient PWM controller designed for power management applications. With its wide input voltage range, compact package, and comprehensive protection features, it offers a reliable solution for diverse power supply systems.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací NCP1075STAT3G v technických řešeních

Sure! Here are 10 common questions and answers related to the application of NCP1075STAT3G in technical solutions:

Q: What is NCP1075STAT3G? A: NCP1075STAT3G is a highly integrated PWM controller IC designed for offline power supplies.
Q: What are the key features of NCP1075STAT3G? A: Some key features include high voltage startup, built-in protections, adjustable frequency, and low standby power consumption.
Q: What is the typical input voltage range for NCP1075STAT3G? A: The typical input voltage range is from 85VAC to 265VAC.
Q: Can NCP1075STAT3G be used in both flyback and buck-boost converter topologies? A: Yes, NCP1075STAT3G can be used in both flyback and buck-boost converter topologies.
Q: What is the maximum switching frequency supported by NCP1075STAT3G? A: The maximum switching frequency supported is typically up to 100 kHz.
Q: Does NCP1075STAT3G have built-in overvoltage protection? A: Yes, NCP1075STAT3G has built-in overvoltage protection to safeguard against excessive output voltage.
Q: Can NCP1075STAT3G operate in a wide temperature range? A: Yes, NCP1075STAT3G is designed to operate in a wide temperature range, typically from -40°C to 125°C.
Q: Is NCP1075STAT3G suitable for low-power applications? A: Yes, NCP1075STAT3G is suitable for low-power applications due to its low standby power consumption.
Q: Does NCP1075STAT3G support adjustable output voltage? A: Yes, NCP1075STAT3G supports adjustable output voltage through external components.
Q: What are the typical applications of NCP1075STAT3G? A: Some typical applications include LED lighting, auxiliary power supplies, and home appliances.

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