NCP1251BSN65T1GManufacturer: ON Current-Mode PWM Controller for Off-line Power Supplies | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| NCP1251BSN65T1G | ON | 40 | In Stock |
Description and Introduction
Current-Mode PWM Controller for Off-line Power Supplies The **NCP1251BSN65T1G** is a high-performance, fixed-frequency current-mode PWM controller designed for offline power supply applications. This integrated circuit (IC) is engineered to provide efficient and reliable power conversion in AC-DC adapters, LED drivers, and auxiliary power supplies.  
Operating at a fixed switching frequency of 65 kHz, the NCP1251BSN65T1G ensures stable performance while minimizing electromagnetic interference (EMI). Its current-mode control architecture enhances transient response and simplifies loop compensation, making it suitable for compact and cost-effective designs.   Key features include built-in brown-out protection, overvoltage protection (OVP), and latch-off capability for enhanced system safety. The IC also supports skip-cycle operation at light loads, improving efficiency across varying power demands. With a startup current as low as 10 µA, it reduces standby power consumption, aligning with modern energy efficiency standards.   Housed in a compact SOIC-7 package, the NCP1251BSN65T1G is optimized for space-constrained applications. Its robust design and comprehensive protection features make it a preferred choice for engineers seeking a dependable solution for offline power conversion. Whether used in consumer electronics or industrial power systems, this IC delivers consistent performance and reliability. |
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Application Scenarios & Design Considerations
Current-Mode PWM Controller for Off-line Power Supplies
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