Fairchild Semiconductor KA7522
The KA7522 is a electronic ballast controller for fluorescent inverter systems. It contains whole function in KA7521, current feed back and preheating time controlled by temperature sensing.| Part No. | KA7522 |
|---|---|
| Datasheet | KA7522 Download |
| Manufacturer |  Fairchild Semiconductor |
| Description | DIMMING BALLAST CONTROLLER |
| Buy | Stock & Price |
FEATURES
● 3-step soft start● Input voltage limit & Brown out
● Non Lamp detect, & Lamp reset
● ZVS Guard control
● Current feedback control
● Preheating time controlled by temperature sensing 22 DIP 20 SOP BLOCK DIAGRAM Tsns 17 Rhys 18 ORDERING INFORMATION Device KA7522 KA7522D Package 22 SDIP 20 SOP Operating Temperature Î-25 ~ + 100 Î-25 ~ + 100 Vds Vgs 16 15 VCC 20 BROW N OUT OVER TEMPERATUR E IN P U T V LIM IT ZVS GUARD CONTRO L 10 3 STEP 8 LOW - SOFT TEMPER START 7 SAW TOO TH GENERATOR + - U V L O & 5 V V re f 1 4 V re f 2 D -F/F 2 OUTPUT STAGE 2 OUT2 19 OUT1 D C -F E ED 12 FORW AR D DELAY TIMER D IM M IN G BOX CURREN T FEEDBACK M U LT IP LIE R LAMP DETECT NON LAMP OVERCURREN T 4 Vsns LAMP RESET 9 ñ 5 V lm 1 6 V lm 2 11 Vmo 13 V fb ©1999 Fairchild Semiconductor Corporation Rev. B KA7522/D DIMMING BALLAST CONTROL IC ÎABSOLUTE
MAXIMUM RATINGS
(TA = 25 , unless otherwise specified) Characteristic Supply Voltage Peak driver output current Operating ambient temperatute Storage temper...
