| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() | WE-PD SMT-Speicherdrossel, 330 µH, 0.64 A | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-PD SMT-Speicherdrossel | Induktivität330 µH | Performance Nennstrom0.64 A | Sättigungsstrom0.45 A | Gleichstromwiderstand1860 mΩ | Eigenresonanzfrequenz4 MHz | Bauform7345 | VersionGestanzt |