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KA7521
BALLAST CONTROLLER
ELECTRONIC BALLAST CONTROLLER
The KA7521 is a electronic ballast controller for fluorescent inverter system. It contains soft start, no lamp protection and over temperature protection. With the zero voltage switching, it can also provide low noise and low power loss.
FEATURES
• Dimming Control • 3 Step Soft start • ZVS Driving • DC feed-forward • No Lamp Protection • Over temperature protection with Variable Hysteresis • Option Comparator • Internal UVLO
16 DIP
ORDERING INFORMATION
Device KA7521
Package 16 DIP
ÎOperating Temperature -25 ~ + 100
BLOCK DIAGRAM
©1999 Fairchild Semiconductor Corporation
Rev.
KA7521 Datasheet
