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ONSEMI NCP1207APG Power Controller

The NCP1207A/B series are high-performance current mode controllers designed for quasi-resonant, border-line, or critical conduction mode switching power supplies. Featuring dynamic self-supply, overvoltage and overcurrent protections, and adjustable skip cycle levels, these devices optimize efficiency and reduce EMI noise. They operate in burst mode at light load, ensuring quiet operation and improved power management. With integrated demagnetization detection, latchoff fault protection, soft-start, and high-voltage technology, the NCP1207A/B are ideal for low-cost AC/DC adapters, battery chargers, consumer electronics, and auxiliary power supplies, providing reliable and rugged control in SMPS applications.

Authorized Distributors
Part No:NCP1207APG
Stock:0
Inv Date:06-11-2026
Price: N/A
Buy/RFQ:
Part No:NCP1207APG
Stock:0
Inv Date:06-10-2026
Price: Unit price: $1.15
Buy/RFQ:

ONSEMI NCP1207APG Power Controller Specifications:

  • Operation in border-line / critical conduction mode ensuring high efficiency
  • Quasi-resonant, burst mode operation with adjustable skip cycle level
  • Dynamic Self-Supply (DSS) for simplified transformer design, no auxiliary winding needed
  • Overvoltage Protection (OVP) with latched fault condition
  • Overcurrent Protection (OCP) with burst mode response
  • Internal 8.0 us timer for NCP1207A, 4.5 us timer for NCP1207B
  • Soft-start time: 1 ms internal soft-start
  • Maximum ratings: 20 V continuous supply voltage, 25 V pulse, TJ max 150°C
  • Operating temperature: -40°C to +125°C, junction-to-air resistance: 178°C/W (SOIC) or 100°C/W (DIP8)
  • Pin functions include demag detection, feedback, current sense, ground, driver, supply, high-voltage pin
  • Supports external latch/trigger for shutdown and latchoff
  • Maximum switching frequency: up to 200 kHz for NCP1207B
  • ESD protection: 2 kV for all pins except HV

Buy the ON Semiconductor Series NCP1207 Power Controller: NCP1207APG

Enhance your power supply designs with the ON Semiconductor NCP1207APG power controller. Engineered for efficiency and quiet operation, it features burst mode, adjustable skip cycle, and comprehensive fault protections. Ideal for low-cost adapters, chargers, and consumer electronics, this controller ensures rugged reliability and simplified transformer design thanks to its dynamic self-supply technology. With soft-start, latchoff protection, and high-frequency capability up to 200 kHz, the NCP1207APG is your perfect choice for efficient, noise-free switch-mode power supplies. Buy online now for fast delivery and trusted quality.

Get ON Semiconductor NCP1207APG today—built for reliable, high-efficiency switch-mode power supply control with advanced protections and quasi-resonant operation.

Frequently Asked Questions

Where can I buy ONSEMI NCP1207APG?

You can click on the BUY or RFQ button to purchase NCP1207APG from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part NCP1207APG?

You can download the NCP1207APG datasheet or visit the ONSEMI website for support.

Who is the manufacturer of NCP1207APG?

ONSEMI

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