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HV9925 Datasheet(PDF) 3 Page - Supertex, Inc

Part # HV9925
Description  Programmable-Current LED Lamp Driver IC with PWM Dimming
PDF  10 Pages
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Manufacturer  SUTEX [Supertex, Inc]
Direct Link  http://www.supertex.com
Logo SUTEX - Supertex, Inc

HV9925 Datasheet(HTML) 3 Page - Supertex, Inc

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3
NR021506
HV9925
Functional Block Diagram
VDD
0.5V
+
-
DRAIN
GND
HV9925
S
R
Q
Q
REG
RSENSE
Over Temp.
PWMD
TBLANK = 300ns
TOFF = 10μs
OFF-Time Generator
T
OFF
OFF time
8.0
10.5
13
μs
--
PWM Dimming
V
PWMD,HI
PWMD input high voltage
2.0
-
-
V
* --
V
PWMD,LO
PWMD input low voltage
-
-
0.8
V
* --
R
PWMD
PWMD pull down resistance
100
200
300
kΩ
V
PWMD = 5V
Thermal Shutdown
T
OT
Over temperature trip limit
-
140
-
°C
--
T
HYST
Temperature hysteresis
-
60
-
°C
--
Electrical Characteristics (cont.)
Symbol
Parameter
Min
Typ
Max
Units
Conditions



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