onsemi NCP1217D100R2

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NCP1217D100R2 Flyback Switching Controller by onsemi

The NCP1217D100R2 is a high-performance AC/DC offline switching controller from onsemi, designed for isolated flyback topology applications. This controller operates at a fixed 100kHz switching frequency with a 74% duty cycle, making it ideal for cost-effective power supply designs in industrial, consumer, and telecom applications.

Key Features & Benefits

  • Isolated Flyback Topology: Provides galvanic isolation for enhanced safety and noise immunity
  • 100kHz Switching Frequency: Enables compact transformer design and reduced component size
  • Wide Supply Voltage Range: 7.6V to 16V operating range with 12.8V start-up voltage
  • Comprehensive Protection: Built-in over-load, over-temperature, and short-circuit fault protection
  • Surface Mount 8-SOIC Package: Space-saving design for high-density PCB layouts
  • Extended Temperature Range: Operates reliably from 0°C to 150°C (TJ)
  • Tape & Reel Packaging: Ready for automated assembly processes

Typical Applications

  • AC/DC adapters and chargers
  • Auxiliary power supplies
  • Industrial control systems
  • Consumer electronics power management
  • Telecom and networking equipment

Authorized Distributor: We are an authorized distributor providing 100% genuine onsemi components with full traceability and RoHS/REACH compliance documentation. All products come with manufacturer warranty and long lifecycle support.

Product attributes Property Value
Manufacturer onsemi
Product Series
Packaging Tape & Reel (TR) |
Output Isolation Isolated
Internal Switch(s) No
Voltage - Breakdown -
Topology Flyback
Voltage - Start Up 12.8 V
Voltage - Supply (Vcc/Vdd) 7.6V ~ 16V
Duty Cycle 74%
Frequency - Switching 100kHz
Power (Watts) -
Fault Protection Over Load, Over Temperature, Short Circuit
Control Features -
Operating Temperature 0°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC