HV9985 Description
The HV9985 is a three-channel peak current mode PWM controller for driving single switch converters in a constant output current mode. It can be used for driving either RGB LEDs or multiple channels of white LEDs.
HV9985 Key Features
- Switch mode controller for single-switch converters
- Gate drivers optimized for driving Logic Level FETs
- 0.25A sourcing
- 0.5A sinking
- Typical ±2% absolute and string-to-string current accuracy (with ±1% sense resistors)
- High PWM dimming ratio up to 5000:1
- 10-40V input range
- Constant frequency operation up to 1.0MHz
- On-chip clock or external clock option
- Programmable slope pensation