HV9930DB1 Supertex, HV9930DB1 Datasheet
HV9930DB1
Specifications of HV9930DB1
Related parts for HV9930DB1
HV9930DB1 Summary of contents
Page 1
... Supertex inc. High Bright LED Driver IC Demoboard Meeting Automotive Requirements General Description The HV9930DB1 is an LED driver demoboard capable of driving 1-watt LEDs in series from an automotive input 16VDC. The demoboard uses Supertex’s HV9930 in a boost-buck topology. The converter operates at frequencies in excess of 300kHz and has excellent output current regulation over the input voltage range ...
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... PWM dimming ratios can be obtained at lower frequencies like 100 or 200Hz Typical Results Fig. 1 shows the efficiency plot for the HV9930DB1 over the input voltage range. The converter has efficiencies greater than 80% over 13V input. Note that these measurements do not include the 0.3 - 0.5W loss in the reverse blocking diode ...
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... It can be seen that the LED current drops briefly when the input voltage jumps, but there are no overshoots. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 3 HV9930DB1 Fig. 5. Cold Crank Operation Channel 1 (blue): Input voltage (10V/div) Channel 3 (pink): Input current (1A/div) Channel 4 (green): LED current; 100mA/div Fig ...
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... Fig. 7a shows the operation of the converter during an Open LED condition and Fig. 7b shows the operation during output short circuit condition. In both cases, it can be seen that the HV9930DB1 can easily withstand faults and come back into normal operation almost instantly. Fig. 7 HV9930DB1 during output fault conditions FET drain voltage (20V/div) Channel 1 in (a) ...
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... The table also lists the Class of the SAE standard the board meets in each frequency range. The conducted EMI plots for the HV9930DB1 obtained at an input voltage of 13.5V and an LED string voltage of 27V (output current is 350mA) are given in the Appendix. ...
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... Circuit Schematic: Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 6 HV9930DB1 ● Tel: 408-222-8888 ● www.supertex.com ...
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... PCB Top Layer PCB Bottom Layer Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 7 HV9930DB1 ● Tel: 408-222-8888 ● www.supertex.com ...
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... Appendix – Conducted EMI Test Results Supertex inc. Ref. Level = 70dBµV Ref. Level = 50dBµV Ref. Level = 45dBµV ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 8 HV9930DB1 ● Tel: 408-222-8888 ● www.supertex.com ...
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... Appendix – Conducted EMI Test Results Supertex inc. (cont.) Ref. Level = 65dBµV Ref. Level = 49dBµV ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 9 HV9930DB1 ● Tel: 408-222-8888 ● www.supertex.com ...
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... SMD0805 Yageo SMD1206 Yageo SMD0805 Yageo SMD0805 Yageo SO-8 Supertex does not assume responsibility for use of devices described, and limits its liability Supertex inc. Supertex inc. 10 HV9930DB1 Manufacturer’s Part # C1210C224K5RACTU ECJ-4YB1E475K GRM32ER71H475KA88L C0805C105K4RACTU C2012X7R1C225K 08052R104K9B20D B220-13 BZX84C33-7 1N4148W-7 B2100-13 S2B-EH S3B-EH ...