Topologie | Abwärtswandler |
Eingangsspannung | 20-60 V |
Ausgang 1 | 15 V / 0.35 A |
The HV9967BDB1 demoboard is a high-brightness LED driver designed to drive 4 LEDs in series at currents up to 350mA from a 20 - 60V DC input. The demoboard uses the Supertex’s HV9967B in a buck configuration in a constant off-time mode.
The HV9967BDB1 LED driver features tight regulation of the LED current within a few milliamps over the entire range of the input voltage (i.e. 20 - 60VDC). The LED current accuracy is almost insensitive to the passive component tolerances,such as the output filter inductance or the timing resistor.
PWM dimming can be achieved by applying a pulse-widthmodulated square wave signal between the PWMD and GND pins.
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L (µH) | IRP,40K (A) | ISAT (A) | RDC max. (mΩ) | fres (MHz) | Bauform | Version | Muster | |
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744777233 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-PD SMT-Speicherdrossel | 330 | 0.64 | 0.45 | 1860 | 4 | 7345 | Standard |
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Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L (µH) | IRP,40K (A) | ISAT (A) | RDC max. (mΩ) | fres (MHz) | Bauform | Version | Muster |
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