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ONSEMI NCP1377DR2G PWM Controller
The NCP1377 is a PWM current-mode controller designed for free-running and quasi-resonant operation in switchmode power supplies. It features border-line/critical conduction mode, latched overvoltage protection, and adjustable skip cycle capabilities for noise-free operation. The device includes internal soft-start, temperature shutdown, and overload protection, making it suitable for AC-DC adapters, battery chargers, and consumer electronics. Its high-voltage technology ensures reliable startup and efficient power management with minimal EMI, supporting high-frequency operation up to 100 kHz for the standard version and up to 300 kHz for the B version.
ONSEMI NCP1377DR2G PWM Controller Specifications:
- Free-running border-line/critical mode operation
- Latched overvoltage protection at 7.2 V detection level
- Adjustable skip cycle to optimize noise and efficiency
- Internal 1.0 ms soft-start and temperature shutdown
- Supports high-frequency operation up to 100 kHz (NCP1377) and 300 kHz (NCP1377B)
- Peak current limit: 500 mA
- Under voltage lockout level: 12.5 V (On), 7.5 V (Min)
- Demagnetization detection via auxiliary winding with 4.5 us delay (NCP1377) and 1.5 us (B version)
- Operating temperature range: -60°C to +150°C
- Package options: SOIC-8, SOIC-7, PDIP-7, RoHS compliant, Pb-Free
Buy the ON Semiconductor Series PWM Controller: NCP1377
Enhance your power supply design with the NCP1377 PWM controller, featuring critical conduction mode, adjustable skip cycle, and overvoltage protection. Its high-frequency operation ensures low EMI and smooth startup. Designed for AC-DC adapters, consumer electronics, and auxiliary power supplies, this controller guarantees reliable performance under varying load conditions. With internal soft-start and temperature shutdown, it provides safe startup and protection. Easy to implement with robust features, the NCP1377 is ideal for low-cost, high-efficiency switchmode power supplies, ensuring long-term durability and minimal electromagnetic interference.
Get ON Semiconductor NCP1377 today—built for precision, reliability, and efficient power management in switchmode power supplies.
Frequently Asked Questions
Where can I buy ONSEMI NCP1377DR2G?
You can click on the BUY or RFQ button to purchase NCP1377DR2G from an authorized ONSEMI distributor.
How do I troubleshoot issues or seek technical support for part NCP1377DR2G?
You can download the NCP1377DR2G datasheet or visit the ONSEMI website for support.
Who is the manufacturer of NCP1377DR2G?
ONSEMI