IC QUASI-RESONANT PWM CONTROLLER 8SOIC


Bypass caps, pull-ups, strapping resistors, custom silkscreen & more
Design a Custom BoardQuasi-resonant current-mode controller for high-power offline flyback converters. Features valley-lockout switching, frequency foldback at light load, adjustable over-power protection, and fixed 80 ms short-circuit protection timer. Supports extended VCC range up to 28V with ±500/800 mA peak source/sink capability. Ideal for AC-DC adapters, TVs, and set-top box power supplies.
An 8-pin SOIC with 1.27mm pitch is too fine for breadboards and hand-soldering without a microscope. A breakout board routes these pins to standard 0.1" headers, enabling rapid prototyping and reliable connections for op-amps, transceivers, and small power MOSFETs without requiring reflow equipment.
ELECTRICAL CHARACTERISTICS
| Manufacturer | onsemi |
| Part Number | NCP1380BDR2G |
| Package | SOIC-8 (3.9×4.9mm) |
| Pin Count | 8 |
| Topology | Flyback |
| Voltage - Supply (Vcc/Vdd) | 9V ~ 28V |
BILL OF MATERIALS
PCB SPECIFICATIONS
< 0.9" (straddles breadboard)
2.54mm standard
Lead-free, reflow assembled
FR4, lead-free HASL