HV9961DB1 Supertex, HV9961DB1 Datasheet - Page 2

• Manufacturer Part Number: HV9961DB1
• Description: LED Lighting Development Kits 21W UNIV AC LED DRVR DEMOBRD W/AV-MD CTRL
• Manufacturer: Supertex

PWM Dimming
The HV9961DB1 is capable of being PWM dimmed by ap-
plying a square wave TTL compatible signal between PWMD
and GND terminals. However, since there is no galvanic iso-
lation on the board, care must be taken to prevent damage
to the PWM dimming source and/or the HV9961DB1. One
simple way is to isolate the LED driver from the AC line us-
ing an isolation transformer. Another approach is to use an
opto-isolator to drive the PWMD pin as shown in the figure
below.
Specifications
Parameter
Input Voltage
Output Voltage
Nominal Output Current
Output Current Ripple
Full Load Efficiency
Power Factor
Max. Input Current
Switching Frequency
(variable, T
Open LED Protection
Output Short Circuit Protection
Dimensions
OFF
Supertex inc.
= 20µs)
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
(typical, depending on the type of LED)
90~265VAC, 50/60Hz
68.6mm X 49.6mm
0.27A (RMS)
350mA±4%
20~60V
29kHz
38kHz
40kHz
43kHz
Value
±15%
92%
91%
YES
YES
0.56
0.50
2
(<1.0kHz)
square
signal
wave
5.0V
●
Tel: [phone]
3.8kΩ
(e.g. LTV-814 from Lite-On)
Recovery upon power reset
●
Opto-isolator
120VAC, 60V/350mA
120VAC, 60V/350mA
240VAC, 60V/350mA
120VAC, 60V/350mA
240VAC, 60V/350mA
120VAC, 60V/350mA
240VAC, 60V/350mA
120VAC, 20V/350mA
240VAC, 20V/350mA
90VAC, 60V/350mA
www.supertex.com
Condition
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HV9961DB1
VDD
PWMD