HV9931DB2 Supertex, HV9931DB2 Datasheet

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HV9931DB2

Manufacturer Part Number
HV9931DB2
Description
LED Lighting Development Kits LED DRIVER DEMOBOARD
Manufacturer
Supertex
Datasheet
1.HV9931DB2.pdf (14 pages)
General Description
The HV9931 LED driver is primarily targeted at low to
medium power LED lighting applications where galvanic
isolation of the LED string is not an essential requirement.
The driver provides near unity power factor and constant
current regulation using a two stage topology driven by
a single MOSFET and control IC. Triac dimming of this
design is possible with the addition of some components for
preloading and inrush current shaping.
The DB1 and DB2 demo boards were designed for a fixed
string current of 350mA and a string voltage of 40V for a load
power of about 14W. The boards will regulate current for an
output voltage down to 0V.
Nominal input voltage for the DB1 is 120VAC, for the DB2
230VAC. Design for universal input (85 to 265VAC) is by
all means possible but does increase cost and size while
lowering efficiency.
The input EMI filter was designed to suppress the differential
mode switching noise to meet CISPR15 requirements.
No specific components were added to suppress currents
of common mode nature. Common mode current can be
controlled in many ways to satisfy CISPR 15 requirements.
The board is fitted with a number of optional circuits; a
schematic of a simplified driver is given as well. The circuits
Board Layout and Connections
Supertex inc.
Supertex inc.
Input 230VAC // Output 350mA, 40V (14W)
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
LED Driver Demo Board
1
featured are output current soft start and protections from
line overvoltage, load overvoltage and open circuit. The
driver is inherently short circuit proof by virtue of the peak
current regulation method.
Specifications
Input voltage:
Output voltage:
Output current:
Output power:
Power factor
Total harmonic distortion
EMI limits
Efficiency
Output current ripple
Input overvoltage protection
Output overvoltage protection 46V, Latching
Switching frequency
Dimensions:
A
V
●
Tel: 408-222-8888
●
200V
0 to 40V
350mA +/-5%
14W
98%
EN61000-3-2 Class C
CISPR 15 (see text)
83%
30%
265V
80kHz
3.5” x 3.0” x 1.25”
www.supertex.com
HV9931DB2v1
PP
RMS
RMS
NOM
, Non-Latching
to 265V
RMS
, 50Hz
V
A

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HV9931DB2 Summary of contents

Page 1

... Power factor Total harmonic distortion EMI limits Efficiency Output current ripple Input overvoltage protection Output overvoltage protection 46V, Latching Switching frequency Dimensions: A ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 1 HV9931DB2v1 200V to 265V RMS 0 to 40V 350mA +/-5% 14W 98% EN61000-3-2 Class C CISPR 15 (see text) 83% 30% PP ...

Page 2

... AC line input voltage waveform, the line current will be bounded by a more or less sinusoidal line current envelope which results in sinusoidal input current for low line and other abnormal conditions. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 2 HV9931DB2v1 ● Tel: 408-222-8888 ● www.supertex.com ...

Page 3

... For tightly packaged designs or where induc- tor losses are an issue, drum core style inductors are not recommended. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 3 HV9931DB2v1 L41 E31 D41 3.9mH 22μF STTH1R06A ...

Page 4

... Schematic Diagram Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 4 HV9931DB2v1 ● Tel: 408-222-8888 ● www.supertex.com ...

Page 5

... RMS 60 100V RMS Supertex inc. 100 ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 5 HV9931DB2v1 Efficiency [%] vs. String Voltage [V] (100V , 120V , 135V ) RMS RMS RMS virtually the same THD [%] vs. String Voltage [V] 100V 120V 135V RMS RMS RMS ● Tel: 408-222-8888 ● www.supertex.com 50 50 ...

Page 6

... Output Current and Drain Voltage at nominal load (350mA, 40V) I (Peak) I (Valley) V LED LED DRAIN Output Current and Drain Voltage at half load (350mA, 20V) Supertex inc. 230V RMS 230V RMS ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 6 HV9931DB2v1 265V RMS 265V RMS ● Tel: 408-222-8888 ● www.supertex.com ...

Page 7

... Drain Voltage and Gate Voltage 40ns per div VG @ IC51 VG @ M31 Turn-ON Recovery of D42 Recovery of D41 V SN3 ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 7 HV9931DB2v1 4µs per div 350mA AVE 40ns per div Turn-OFF Recovery of D41 Recovery of D42 V SN2 ● Tel: 408-222-8888 ● ...

Page 8

... Typical Waveforms (3) (120V Drain Voltage and Voltage at the Test Point L1D (3 points along the AC line cycle 90° DRAIN V L1D Supertex inc. , 40V, 350mA) RMS A ~ 30° T ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 8 HV9931DB2v1 A ~ 10° T Clamping action of D37 ● Tel: 408-222-8888 ● www.supertex.com ...

Page 9

... The shielding also was instrumental in reducing the lower frequency emissions by reducing magnetic field coupling from the main inductors to the EMI filter inductors (EMI filter section kept outside of shielded area). ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 9 HV9931DB2v1 60 56 10MHz 60 56 10MHz ● ...

Page 10

... Bordeaux Drive, Sunnyvale, CA 94089 10 HV9931DB2v1 7 8 Corner 560 504 2000 2000 RL1 - - 3300 3300 3000 3000 RL2 - - 32 ...

Page 11

... Bordeaux Drive, Sunnyvale, CA 94089 11 HV9931DB2v1 7 8 Corner 361 363 IL1RMS 383 388 1161 1291 IL1MAX 1063 1318 351 341 IL2RMS 341 362 406 ...

Page 12

... Corner 7 (135V ) (Nom Duty) AC Drain Voltage Envelope Rectified Line Voltage Bus Voltage Input Inductor Peak Current Envelope Line Current ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 12 HV9931DB2v1 Corner 2 (100V ) (Low Duty) AC Corner 5 (120V ) (Low Duty) AC Corner 8 (135V ) (Low Duty) AC ● Tel: 408-222-8888 ● ...

Page 13

... RES 1/8W 0805 1% 1.30MΩ 3 R68, R83, R84 RES 1/8W 0805 1% 1.00MΩ 1 R88 RES 1/8W 0805 1% 10.0MΩ Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 13 HV9931DB2v1 Manufacturer Product Number Diodes Inc RH06-T Kemet C0805C101K5GACTU Kemet C0805C103K1RACTU Vishay/Vitramon VJ0805A101JXGAT5Z Murata ...

Page 14

... Vishay/Dale Susumu Co Ltd Susumu Co Ltd Littelfuse Inc Diodes Inc Diodes Inc does not assume responsibility for use of devices described, and limits its liability Supertex inc. Supertex inc. 14 HV9931DB2v1 Product Number ERJ-8GEYJ682V CRCW120610M0FKEA RL1220S-R27-F RL1220S-R68-F SMAJ440CA BZX84C7V5-7-F BZX84C47-7-F (website: http//www.supertex.com) Supertex inc. ...

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