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FAN7527B — Power Factor Correction Controller
April 2013
FAN7527B
Power Factor Correction Controller
Features
Internal Startup Timer
Internal R/C Filter Eliminates the Need for External
R/C Filter
Precise Adjustable Output Over-Voltage Protection
Zero Current Detector
One Quadrant Multiplier
Trimmed 1.5% Internal Band Gap Reference
Under-Voltage Lockout with 3 V of Hysteresis
Totem-Pole Output with High-State Clamp
Low Startup and Operating Current
8-Pin SOP or 8-Pin DIP
Description
The FAN7527B provides simple and high-performance
active Power Factor Correction (PFC). The FAN7527B
is optimized for electronic ballasts and low–power, high-
density power supplies that require minimum board size,
reduced external components, and low power
dissipation. Because the R/C filter is included in the
current-sense block, an external R/C filter is not
necessary. Special circuitry prevents no-load runaway
conditions. Regardless of the supply voltage, the output
drive clamping circuit limits the overshoot of the power
MOSFET gate drive, which improves system reliability.
与云数据库相比，小型计算机是专门为网络边缘的去中心化坚固计算而构建的。通过将应用程序、分析和处理服务移动到更靠近数据生成源的位置，业务运营可以获得改进的实时计算应用程序性能。 l 从奔腾到酷睿i5的可扩展CPU性能 l 智能电源点火管理和CAN总线网络支持 l 无线局域网和广域网LTE连接 l 丰富的I/O可扩展性，包括PoE、PCI、PCIe、COM l 适用于宽工作温度和宽电压输入的坚固...[详细]
测试/测量
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