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參數資料
| 型號： | KA7526D |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | Tantalum Conformal-Coated Capacitor; Capacitance: 10uF; Voltage: 25V; Packaging: Tape & Reel |
| 中文描述： | 0.5 A POWER FACTOR CONTROLLER, 20 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SO-8 |
| 文件頁數： | 1/22頁 |
| 文件大小： | 250K |
| 代理商： | KA7526D |
2000 Fairchild Semiconductor International
www.fairchildsemi.com
Rev. 5.0
Features
Internal Startup Timer
Internal R/C filter which eliminates the Need for an
External R/C filter
Overvoltage Comparator eliminates Runaway Output
Voltage
Zero Current Detector
One Quadrant Multiplier
Trimmed 1.5% Internal Bandgap Reference
Under Voltage Lock Out with 5V of Hysteresis
Totem Pole Output with High State Clamp
Low Startup and Operating Current
8-Pin DIP or 8-Pin SOP
Applications
Electronic Ballast
SMPS
Descriptions
The KA7526 provides simple and high performance active
power factor correction. KA7526 is optimized for electronic
ballast and low power, high density power supplies requiring
a minimum board area, reduced component count and low
power dissipation. Addition of internal R/C filter eliminates
the need for an external R/C filter. Internal clamping of the
error amplifier and multiplier outputs improves turn on over-
shoot characteristics and current limiting. Special circuitry
has also been added to prevent no load runaway conditions.
The output drive clamping circuit limits overshoot of the
power MOSFET gate drive Independent of supply voltage,
so that it greatly enhance the system reliability.
KA7526
Power Factor Correction Controller
8-DIP
8-SOP
1
1
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