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HV9921N3 Datasheet(PDF) 3 Page - Supertex, Inc

Part # HV9921N3
Description  3-Pin Switch-Mode LED Lamp Driver IC
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Manufacturer  SUTEX [Supertex, Inc]
Direct Link  http://www.supertex.com
Logo SUTEX - Supertex, Inc

HV9921N3 Datasheet(HTML) 3 Page - Supertex, Inc

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HV9921/22
NR040805
3
Functional Block Diagram
V
DD
REF
+
-
R
DRAIN
GND
HV9921/22
S
R
Q
Q
Regulator
7.0V
T
OFF = 10µs
T
BLANK = 300ns
Pin Configuration
TO-243AA (SOT-89)
TO-92
DRAIN
– This is a drain terminal of the output
switching MOSFET and a linear regulator input.
VDD – This is a power supply pin for all control circuits.
Bypass this pin with a 0.1uF low impedance capacitor.
GND
– This is a common connection for all circuits.


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