HV9930DB2 Supertex, HV9930DB2 Datasheet

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HV9930DB2

Manufacturer Part Number
HV9930DB2
Description
LED Lighting Development Tools HV9930 Demo Board
Manufacturer
Supertex
Datasheet

Specifications of HV9930DB2

Product Category
LED Lighting Development Tools
Product
Demonstration Boards
Core
HV9930
Operating Supply Voltage
9 V to 25 V
Factory Pack Quantity
1
For Use With
4 - 3 W LEDs
General Description
The HV9930DB2 is a LED driver demoboard capable
of driving 4 3-watt LEDs in series from an input of 9
- 25V DC. The demoboard uses Supertex’s HV9930
in a boost-buck topology. The converter has excellent
line and load regulation over the entire input and
output voltage range. The full load efficiency of the
converter is typically greater than 80%. The converter
is also protected against open LED and output short
circuit conditions.
Board Layout and Connection Diagram
Connections:
Input - The input is connected between the terminals of
connector J1 as shown in the Connection Diagram.
Output - The output is connected between the terminals of
connector J2 as shown.
Enable/PWM Dimming - To just enable the board, short
pins 1 and 2 of connector J3 as shown. To PWM dim the
board, connect the external push-pull square wave source
Supertex inc.
Actual Size:58mm X 35mm
Supertex inc.
Boost-Buck High Brightness
1235 Bordeaux Drive, Sunnyvale, CA 94089
LED Driver Demoboard
Dimming
PWM
V
Specifications
Enable
IN
+
Parameter
Input voltage (steady state):
Output LED string voltage:
Output current:
Output current ripple:
Switching frequency:
Efficiency:
Open LED protection:
Output short circuit protection: Included; limits current at 750mA
Input current limit:
PWM dimming frequency:
Dimensions:
+
-
between terminals 1 and 3 of connector J3 as shown by the
dotted lines.
Note:
During PWM dimming, pin 2 of connector J3 should be left
open. Also, the PWM signal must have the proper polarity
with the positive connected to pin 1 of J3. Note that pin 3
of J3 is internally connected to the return path of the input
voltage.
_
+
3
2
1
Tel: 408-222-8888
www.supertex.com
Included; clamps at 20V
HV9930DB2
(typical at 13V input)
variable 135kHz
58mm X 35mm
750mA +/-5%
9V – 25V DC
Up to 1.0kHz
20% typical
16V max
Value
2.25A

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HV9930DB2 Summary of contents

Page 1

... Supertex inc. Boost-Buck High Brightness General Description The HV9930DB2 is a LED driver demoboard capable of driving 4 3-watt LEDs in series from an input 25V DC. The demoboard uses Supertex’s HV9930 in a boost-buck topology. The converter has excellent line and load regulation over the entire input and output voltage range ...

Page 2

... PWM dimming frequency, the best PWM dimming ratio can be obtained at lower frequencies like 100 or 200Hz. Typical Results Fig.1 shows the efficiency plot for the HV9930DB2 over the input voltage range. The converter has efficiencies greater than 80% over 13V input. 90 ...

Page 3

... Supertex inc. Fig. 7 shows the PWM dimming performance of the HV9930DB1 with a 250Hz, 5.0V square wave signal. The converter can easily operate at PWM dimming duty cycles from 1% - 99%. 1235 Bordeaux Drive, Sunnyvale, CA 94089 3 HV9930DB2 Fig. 7 PWM Dimming Performance ( (b) - 50% (c) - 99% Tel: 408-222-8888 www.supertex.com ...

Page 4

... These rise and fall times can Fig. 8 Dynamic Performance during PWM Dimming (a) - Rise Time (b) - Fall Time Supertex inc. be reduced (if desired) by reducing the output capacitance C6. However, this will lead to increased ripple in the output current. 1235 Bordeaux Drive, Sunnyvale, CA 94089 4 HV9930DB2 Tel: 408-222-8888 www.supertex.com ...

Page 5

... Board Layout and Connections Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 5 HV9930DB2 1 3 Tel: 408-222-8888 www.supertex.com ...

Page 6

... Top Layer Bottom Layer Silk Screen Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 6 HV9930DB2 Tel: 408-222-8888 www.supertex.com ...

Page 7

... Coiltronics UP4B-151 Coiltronics DR125-221 IR IRF7452 Zetex Inc. FMMT2907ATA Panasonic ERJ-12ZQJR47U Panasonic ERJ-12ZYJ8R2U Panasonic ERJ-12ZQJR39U Yageo 9C08052A4421FKHFT Yageo 9C08052A10R0FKHFT Yageo 9C08052A1002FKHFT Yageo 9C12063A1R28FGHFT Yageo 9C08052A1000FKHFT Yageo 9C08052A4321FKHFT Supertex HV9930LG-G (website: http//www.supertex.com) Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com ...

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