(China (Mainland))
Product Summary
The SA7527 is a power factor correction controller of critical ducting. The SA7527 provides simple and high performance active power factor correction. The SA7527 is optimized for electronic ballasts and low power and highdensity 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. The SA7527 greatly enhances the system reliability. The applications of the SA7527 include Electronic ballast, SMPS.
Parametrics
SA7527 absolute maximum ratings: (1)Supply Voltage, VCC: 30 V; (2)Peak Drive Output Current, IOH, IOL: ±500 mA; (3)Driver Output Clamping Diodes, VO>VCC or VO<0.3V, Iclamp: ±10 mA; (4)Detector Clamping Diodes, Idet: ±10 mA; (5)Error Amp, Multiplier And Comparator Input Voltage, Vin: -0.3; (6)to 6 V; (7)Operating Junction Temperature, Tj: 150℃; (8)Operating Temperature Range, Topr: -25 to 125℃; (9)Storage Temperature Range, Tstg: -65 to 150℃; (10)Power Dissipation, Pd: 0.8 W.
Features
SA7527 features: (1)Internal startup timer; (2)Internal R/C filter eliminates the need for an external R/C filter; (3)Very precise adjustable output over voltage protection; (4)Zero current detector; (5)One quadrant multiplier; (6)Trimmed 1.5% internal band gap reference; (7)Under voltage lockout with 3V of hysteresis; (8)Totem pole output with high state clamp; (9)Low startup and operating current; (10)8pin DIP or 8pin SOP.
Diagrams
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 SA75C |
Littelfuse |
TVS Diodes - Transient Voltage Suppressors SA75C Bi-Directional |
Data Sheet |
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SA75CA-E3/73 |
Vishay Semiconductors |
TVS Diodes - Transient Voltage Suppressors 500W 75V Bidirect |
Data Sheet |
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SA75CA-E3/1 |
Vishay Semiconductors |
TVS Diodes - Transient Voltage Suppressors 500W 75V 5% Bidir |
Data Sheet |
Negotiable |
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SA75CA/54 |
Vishay Semiconductors |
TVS Diodes - Transient Voltage Suppressors 500W 75V 5% Bidir |
Data Sheet |
Negotiable |
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SA75CA/51 |
Vishay Semiconductors |
TVS Diodes - Transient Voltage Suppressors 500W 75V Bidirect |
Data Sheet |
Negotiable |
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SA75CA/1 |
Vishay Semiconductors |
TVS Diodes - Transient Voltage Suppressors 500W 75V 5% Bidir |
Data Sheet |
Negotiable |
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