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| IL9921 Datasheet, PDF (2/6 Pages) IK Semicon Co., Ltd – HIGH-VOLTAGE LED DRIVER | |||
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BLOCK DIAGRAM
IL9921/IL9922/IL9923
VDD
DRAIN
VT1
REFERENCE
VOLTAGE
SOURCE
VREF
-
+
RC-OSCILLATOR
REGULATOR
7.5 V
S
Q
R
Q
FORMER
VT2
DELAY LINE
R1
2
2011, February, Ver. 01
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