NCP1632A數(shù)據(jù)手冊中文資料規(guī)格書

描述 Description

The NCP1632A integrated a dual MOSFET driver for interleaved PFC applications. Interleaving consists of paralleling two small stages in lieu of a bigger one, more difficult to design. This approach has several merits like the ease of implementation, the use of smaller components or a better distribution of the heating. Also, Interleaving extends the power range of Critical Conduction Mode that is an efficient and cost-effective technique (no need for low trr diodes). In addition, the NCP1632A drivers are 180o phase shifted for a significantly reduced current ripple. Housed in a SOIC16 package, the circuit incorporates all the features necessary for building robust and compact interleaved PFC stages, with a minimum of external components.

特性 Features

? Brown out blanking time 50ms; Pin latch threshold 2.5V
? Improved system robustness
? 180° out of phase operation
? Low EMI and reduces RMS current in the bulk capacitor
? Frequency Clamped Critical conduction Mode (FCCrM) operation
? Optimize efficiency over the load range
? Frequency foldback at low power
? Improve light load efficiency
? Integrated Overcurrent protection, Overvoltage protection, UVLO and brown-out protection
? Increase system reliability

應(yīng)用 Application

? All Off Line Appliance Requiring Power Factor Correction
? SMPS
? Flat panel TVs
? Computer Power Supplies
? LCD TV
? Server power, networking power