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Overview
| Topology | Buck Converter |
| Input voltage | 20-60 V |
| Output 1 | 15 V / 0.35 A |
Description
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.
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT(A) | RDC max.(mΩ) | fres(MHz) | Size | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PD SMT Power Inductor, 330 µH, 0.64 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance330 µH | Performance Rated Current0.64 A | Saturation Current0.45 A | DC Resistance1860 mΩ | Self Resonant Frequency4 MHz | Size7345 | VersionStandard |