Datasheet Details
| Part number | HV9903 |
|---|---|
| Manufacturer | Supertex Inc |
| File Size | 326.79 KB |
| Description | White LED Driver |
| Datasheet |
 HV9903 Datasheet
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Description
The Supertex HV9903 is a fixed frequency DC-DC boost converter designed for driving Light Emitting Diodes (LEDs) with constant current where the light intensity is proportional to the current through them.
The input supply voltage range into the device (VDD) is 2.6 to 4.6V.
Features
- ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Power efficiency of up to 85% Drives up to 6 White LEDs 2.6V to 4.6V Supply power stage can operate at 1.8V (see page 8) Built-in Soft Start DC and PWM Dimming Control Built-in Open LED protection Open LED indicator (via RSET) 1.2MHz Fixed Switching Frequency 500nA max leakage current when disabled No leakage current path through LEDs when disabled Resistor-programmable LED Current Small 6-lead MLP (3mm x 3mm) package (similar to 6-pin SOT-23).