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KA7526

Power Factor Correction ICs PFC Controller

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SeekIC No. : 00541193 Detail

KA7526: Power Factor Correction ICs PFC Controller

KA7526 Data Sheet

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Part Number:
KA7526
Mfg:
Fairchild Semiconductor
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/10/30

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Product Details

Quick Details

Maximum Operating Temperature : + 125 C Mounting Style : Through Hole
Package / Case : DIP-8 Packaging : Tube    

Description

Switching Frequency :
Maximum Power Dissipation :
Packaging : Tube
Maximum Operating Temperature : + 125 C
Mounting Style : Through Hole
Package / Case : DIP-8


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


Application

• Electronic Ballast
• SMPS


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Value
Unit
Supply Voltage
Vcc
20
V
Peak Driver Output Current
IOH, IoI
±500
mA
Driver Output Clamping Diodes
VO > VCC or VO < -0.3V
Iclamp
±10
mA
Detector Clamping Diodes
Idet
±3
mA
Error Amp, Multiplier and Comparator Input Voltage
Vin
-0.3 to 6
V
Operating Temperature Range
TOPR
-25 to 125
°C
Storage Temperature Range
TSTG
-65 to 150
°C
Power dissipation(Note)
Pd
0.8
W
Thermal resistance (Note)
(Junction-to-air)
Rqja
100
°C/W


Note :
Based in 8-DIP




Description

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 overshoot 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.




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