CL320
Features
- ±6% current accuracy @ 4.0 -15V
- 90V standoff voltage
- Separate enable pins for each channel allow for PWM dimming ..
- Over-temperature protection
- 8-Lead SOIC (w/Heat Slug) package
General Description
The CL320 is designed to drive 3 strings of LEDs at a constant current of 20m A. Other drivers with currents in the range of 20
- 30m A are available. The drive current is fixed, with a ±6% tolerance over a VOUT range of 4
- 15V. Separate enable pins for each channel allow for PWM dimming, 3-step linear dimming, or individual disconnection of faulty LED strings. Over-temperature protection circuitry shuts down all 3 channels when the nominal die temperature reaches 135°C. Normal operation resumes when the die temperature drops by 30°C. The CL320 is available in the 8-Lead SOIC (w/Heat Slug) package and requires a single ceramic bypass capacitor which may be shared among several drivers.
Applications
- LCD backlighting
- Indicator lamps
Block Diagram and Typical...
