功率因数校正控制器 Power Factor Correction Controller
Description
The FAN7527B provides simple and high performance active power factor correction. The FAN7527B is optimized for electronic ballasts and low power and high density power supplies which require minimum board size, reduced external components and low power dissipation. Because the R/C filter is included in the current sense block, the external R/C filter is not necessary. Special circuitry has also been added to prevent no load runaway conditions. Regardless of the supply voltage, the output drive clamping circuit limits the overshoot of the power MOSFET gate drive. It greatly enhances the system reliability.
Features
• Internal start-up timer
• Internal R/C filter eliminates the need for an external R/C filter
• Very precise adjustable output over voltage protection
• Zero current detector
• One quadrant multiplier
• Trimmed 1.5% internal band gap reference
• Under voltage lockout with 3V of hysteresis
• Totem pole output with high state clamp
• Low start-up and operating current
• 8-Pin DIP or 8-Pin SOP
Applications
• Electronic ballast
•SMPS
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
FAN7527BM Fairchild 飞兆/仙童 | 当前型号 | 当前型号 |
KA7525BD 飞兆/仙童 | 功能相似 | FAN7527BM和KA7525BD的区别 |
KA7524BDTF 飞兆/仙童 | 功能相似 | FAN7527BM和KA7524BDTF的区别 |
KA7524BD 三星 | 功能相似 | FAN7527BM和KA7524BD的区别 |