NCP1271D100R2G

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NCP1271D100R2G

IC OFFLINE SWITCH FLYBACK 7SOIC

  • Manufacturer
  • Mfr. Part #NCP1271D100R2G
  • Package SOP7
  • Datasheet
  • In Stock4501

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Specifications

Package Tape & Reel (TR),Cut Tape (CT)
Series Soft-Skip™
ProductStatus Not For New Designs
OutputIsolation Isolated
InternalSwitch(s) No
Topology Flyback
Voltage-StartUp 12.6 V
Voltage-Supply(Vcc/Vdd) 10V ~ 20V
DutyCycle 80%
Frequency-Switching 100kHz
FaultProtection Current Limiting, Over Load, Over Voltage, Short Circuit
OperatingTemperature -40°C ~ 125°C (TJ)
Package/Case 8-SOIC (0.154, 3.90mm Width), 7 Leads
SupplierDevicePackage 7-SOIC

Overview

Description

The NCP1271D100R2G is a high-performance power management integrated circuit (IC) designed for isolated and non-isolated flyback converters. It features a fixed-frequency, current-mode control architecture that enables high efficiency and tight output regulation. The NCP1271 incorporates multiple protection features, including over-voltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown, making it suitable for various applications in power supplies.
This IC operates over a wide input voltage range and is optimized for low standby power consumption, which is ideal for energy-efficient designs. The NCP1271 includes a primary-side control method, eliminating the need for secondary feedback components, thus simplifying circuit design and reducing costs. Its compact footprint and versatility make it suitable for consumer electronics, industrial applications, and telecommunications. Overall, the NCP1271D100R2G is an effective solution for designing reliable and efficient power supplies.

Features

The NCP1271D100R2G is a high-performance PWM controller designed for flyback converter applications. Key features include:
1. Wide Input Voltage Range: Operates from 8V to 40V DC, suitable for various power supply applications.
2. High Efficiency: Integrates a low start-up current for improved efficiency.
3. Frequency Range: Adjustable switching frequency up to 100 kHz, allowing design flexibility.
4. Built-in Protection: Includes over-voltage, over-current, and thermal shutdown protections to enhance reliability and safety.
5. Soft Start: Features a soft-start function to minimize inrush current and prevent output voltage overshoot during start-up.
6. Low Standby Power: Designed for low standby power consumption, making it energy efficient.
7. DIP Package: Available in a compact DIP package for easy integration into designs.
These attributes make the NCP1271D100R2G ideal for various applications including adapters, chargers, and isolated power supplies.

Package

The NCP1271D100R2G is available in a SOIC-8 package type. This surface-mount package is designed for ease of integration in various electronic applications.

Pinout

The NCP1271D100R2G is a high-performance, off-line, and DC-DC converter specifically designed for power supply applications. It features a total of 8 pins. The functions of these pins are as follows:
1. Pin 1 (COMP): Compensation network connection for feedback loop stability.
2. Pin 2 (CSN): Current sense input for overcurrent protection.
3. Pin 3 (CSP): Current sense input for overcurrent protection.
4. Pin 4 (GND): Ground reference.
5. Pin 5 (VDD): Supply voltage input.
6. Pin 6 (RAMP): Ramp timing capacitor connection for PWM control.
7. Pin 7 (VREF): Reference voltage output (for external components).
8. Pin 8 (SW): Switching node for connecting to the external power switch.
This IC is commonly used in power adapters and other power supply applications due to its efficiency and integrated features.

Manufacturer

The NCP1271D100R2G is manufactured by ON Semiconductor, a global semiconductor company based in Phoenix, Arizona. ON Semiconductor specializes in designing and producing a wide range of semiconductor components, including analog and mixed-signal devices, power management solutions, and discrete semiconductors. The company serves various markets such as automotive, industrial, communications, and consumer electronics. ON Semiconductor focuses on energy efficiency and sustainability in its product offerings, catering to the increasing demand for advanced technology solutions in modern applications.

Application

The NCP1271D100R2G is a high-performance PWM controller primarily used in switch-mode power supplies (SMPS). Its application areas include adapters, LED drivers, and power supplies for telecommunications, industrial equipment, and consumer electronics. It enables efficient voltage regulation, improves energy density, and supports low standby power consumption, making it suitable for various power management solutions.

Equivalent

The NCP1271D100R2G is a high-efficiency, current mode PWM controller. Equivalent products include the LM3478 from Texas Instruments, the TL431 from ON Semiconductor, and the CAT4101 from ON Semiconductor. Always verify specifications and compatibility with your specific application before selection.

Shipping

Shipping MethodsWe

offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.


Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

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2. Credit/ Debit Card

3. Wire Transfer

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