ISL97631
6 LEDs Driver with Integrated Schottky Diode with OVP
Key Features
- Up to 6 LEDs in series
- 27V maximum output
- 2.7V to 5.5V input
- Up to 85% efficient
- 1.35MHz constant frequency
- Enable/PWM dimming control
- Pb-free plus anneal available (RoHS compliant)
Description
The ISL97631 represents a high efficiency, constant frequency PWM regulator with integrated boost diode and FET. Designed for use in white LED driving applications, the ISL97631 features efficiencies up to 85%. It operates at 1.35MHz switching frequency and operates from an input voltage of between 2.7V and 5.5V. The maximum output voltage of 27V enables the ISL97631 to drive up to 6 LEDs in series. It is also possible to use the ISL97631 to drive LEDs in series/parallel combination for applications requiring up to 15 LEDs.
Available in the 6 Ld TSOT package, the ISL97631 offers high efficiency, constant frequency operation. It is specified for operation over the -40°C to +85°C ambient temperature range.
Applications
- LED backlighting
- Cell phones
- PDAs
- Handheld games
- MP3 players
- GPS
- Other handheld devices
