NCP1205P

Effective Inventory6,381

Single Ended Quasi Switching Controllers

  • Manufacturer Part # : NCP1205P

  • Package/Case: DIP-8

  • Brand: Onsemi

  • Product Categories : AC DC Converters, Offline Switches

Quality Assurance

Quality Assurance

All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.

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Certification

We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

Shipping & Payment

Shipping & Payment

About Shipping

We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.

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Service & Packaging

Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

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Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.

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NCP1205P DataSheet

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Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

Rapid Quote

Please submit RFQ for NCP1205P or email to us: Email: [email protected], we will contact you in 12 hours.

Details

Engineered for maximum performance and safety, the NCP1205P is a standout choice for switch mode power supply applications. Its advanced features, coupled with a wide input voltage range and compact packaging, make it a compelling solution for engineers and designers seeking a highly efficient and reliable PWM controller IC

Key Features

  • Natural Drain Valley Switching for Lower EMI and Quasi−Resonant
  • Operation (QR)
  • Smooth Frequency Foldback for Low Standby and Minimum Ripple
  • at Light−Load
  • Adjustable Maximum Switching Frequency
  • Internal 200 ns Leading Edge Blanking on Current Sense
  • 250 mA Sink and Source Driver
  • Wide Operating Voltages: 8.0 to 30 V
  • Wide UVLO Levels: 7.2 to 15 V Typical
  • Auto−Recovery Internal Short−Circuit Protection (OCP)
  • Integrated 3.0 mA Typ Startup Source
  • Current Mode Control
  • Adjustable Overvoltage Level
  • Pb−Free Packages are Available

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Rohs Code No Part Life Cycle Code Obsolete
Part Package Code DIP Pin Count ! 8
Reach Compliance Code not_compliant ECCN Code EAR99
HTS Code ! 8542.39.00.01 Analog IC - Other Type SWITCHING CONTROLLER
Control Mode CURRENT-MODE Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 30 V Input Voltage-Min 8 V
Input Voltage-Nom 12 V JESD-30 Code R-PDIP-T8
JESD-609 Code e0 Length 9.78 mm
Number of Functions 1 Number of Terminals 8
Operating Temperature-Max 85 °C Operating Temperature-Min -25 °C
Package Body Material PLASTIC/EPOXY Package Code DIP
Package Equivalence Code DIP8,.3 Package Shape RECTANGULAR
Package Style IN-LINE Peak Reflow Temperature (Cel) 235
Qualification Status ! Not Qualified Seated Height-Max 4.45 mm
Surface Mount ! NO Switcher Configuration SINGLE
Switching Frequency-Max 125 kHz Technology CMOS
Temperature Grade ! OTHER Terminal Finish TIN LEAD
Terminal Form ! THROUGH-HOLE Terminal Pitch ! 2.54 mm
Terminal Position DUAL Width 7.62 mm

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification NCP1205P PDF Download

FAQs

What is NCP1205P?

The NCP1205P is a PWM switching controller designed by ON Semiconductor. It is commonly used in AC-DC power supplies, LED drivers, and other power management applications. The controller offers features such as overvoltage protection, overcurrent protection, and power factor correction, making it suitable for various power supply designs.

How Does NCP1205P Work?

The NCP1205P operates by regulating the switching of the power supply to control the output voltage. It utilizes pulse-width modulation (PWM) to adjust the duty cycle of the switching signal, allowing precise regulation of the output voltage. The controller also incorporates protection features to ensure safe and reliable operation of the power supply.

How Many Pins does NCP1205P have and What are the Functions of the Pinout Configuration?

The NCP1205P is available in an 8-pin PDIP (Plastic Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

  • VCC: Power supply pin for the controller.
  • FB: Feedback pin for regulating the output voltage.
  • SYNC: Synchronization pin for external clock input.
  • COMP: Compensation pin for setting the control loop response.
  • CS: Current sense input pin for overcurrent protection.
  • DRV: Gate driver output pin for the power switch.
  • GND: Ground pin.

What are the Pros and Cons of NCP1205P?

Pros:

  • Wide Application Range: Suitable for various power supply and LED driver applications.
  • Protection Features: Incorporates overvoltage and overcurrent protection for enhanced safety.
  • Flexible Package Options: Available in PDIP or SOIC packages for design flexibility.
  • Efficiency: Helps in achieving high-efficiency power supply designs.

Cons:

  • External Components: May require external components for specific power supply configurations.
  • Complexity: Designers need to consider factors such as loop compensation and EMI reduction for optimal performance.
  • Component Count: Requires additional external components, potentially increasing the overall component count in the system.

Are There Any Equivalents/Alternatives to NCP1205P for Recommendation?

  • The UC3842 from Texas Instruments is a similar PWM controller commonly used in power supply designs.
  • Alternatives to the NCP1205P include the TOPSwitch series from Power Integrations and the FAN7601 from Fairchild Semiconductor.

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