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ONSEMI NCP1219AD65R2G PWM Controller

The NCP1219 is a high-efficiency PWM controller designed for ac—de applications, offering adjustable skip mode, internal high voltage startup, and dynamic self supply. Its features include fixed-frequency current-mode operation with ramp compensation at 65 kHz or 100 kHz, cycle skip for standby power reduction, and optional latch, auto-recovery, or latch-off fault protection. With easy implementation of overtemperature and overvoltage protection, it simplifies transformer design by eliminating auxiliary windings, making it ideal for adapters, battery chargers, and consumer electronics. Its robust design ensures low standby power consumption, precise current limiting, and superior EMI performance.

Authorized Distributors
Source:Newark
Part No:NCP1219AD65R2G
Stock:2537
Inv Date:06-11-2026
Price: Unit price: $1.55
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Source:DigiKey
Part No:NCP1219AD65R2G
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.81605
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Part No:NCP1219AD65R2G
Stock:3121
Inv Date:06-11-2026
Price: Unit price: $1.5
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Part No:NCP1219AD65R2G
Stock:0
Inv Date:06-11-2026
Price: Unit price: $1.5
Buy/RFQ:
Part No:NCP1219AD65R2G
Stock:0
Inv Date:06-11-2026
Price: Unit price: $1.378
Buy/RFQ:
Part No:NCP1219AD65R2G
Stock:0
Inv Date:06-11-2026
Price: Unit price: $1.378
Buy/RFQ:

ONSEMI NCP1219AD65R2G PWM Controller Specifications:

  • Fixed Frequency: 65 kHz or 100 kHz options
  • Current Mode Operation with Ramp Compensation
  • Internal High Voltage Startup Circuit rated at 500 V
  • Dynamic Self Supply eliminates auxiliary winding needs
  • Cycle Skip Mode for reduced standby power consumption
  • Overload Fault Timer: 118 ms
  • Adjustable skip threshold voltage
  • Peak Drive Current: 500 mA source / 800 mA sink
  • Pin to Pin Compatibility with NCP12XX Series
  • Operating Junction Temperature: -40°C to 125°C
  • Power Dissipation: 0.92 W in SOIC-7 package
  • Includes options for latch and auto-recovery fault modes
  • Built-in frequency jittering for EMI reduction
  • Supports external latch or non-latched shutdown circuits
  • Designed for low standby power in offline power supplies

Buy the Buy ON Semiconductor NCP1219 PWM Controller Part Number NCP1219AD65R2G Online

Experience high efficiency and low standby power with the ON Semiconductor PWM Controller NCP1219AD65R2G. This robust device features adjustable skip mode, internal high voltage startup, and cycle skip for standby power reduction. Its current mode operation, ramp compensation, and fault protection options make it suitable for various applications, including adapters, battery chargers, and consumer electronics. With support for external latch and auto-recovery modes, simplified transformer design, and EMI mitigation techniques, it ensures reliable performance and energy savings in your power conversion designs.

Get ON Semiconductor NCP1219AD65R2G today—built for precision, low standby power, and reliable fault protection in high-efficiency power supply designs.

Frequently Asked Questions

Where can I buy ONSEMI NCP1219AD65R2G?

You can click on the BUY or RFQ button to purchase NCP1219AD65R2G from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part NCP1219AD65R2G?

You can download the NCP1219AD65R2G datasheet or visit the ONSEMI website for support.

Who is the manufacturer of NCP1219AD65R2G?

ONSEMI

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