
Maxim Integrated
General Description
The MAX16824/MAX16825 three-channel LED drivers operate over a 6.5V to 28V input voltage range. These devices provide three open-drain constant-current-sinking outputs that are rated to 36V and deliver up to 150mA of current to each string of high-brightness LEDs (HB LEDs). The current at each output is programmable by means of an external current-sense resistor.
FEATUREs
♦ 6.5V to 28V Operating Range
♦ Outputs Connected to 36V Supply for Long LED Strings
♦ Three 36V-Rated Output Channels with Independently Adjustable LED Current
♦ 150mA Output Current Per Channel
♦ ±5% LED Current Accuracy
♦ PWM Dimming
Three Independent Dimming Control Inputs (MAX16824)
4-Wire Serial Interface LED Current Chopping (MAX16825)
♦ +5V (±5%) Regulated Output with 4mA Source Capability
♦ Fast Transient Dimming Response
♦ 200mV Current-Sense Reference Reduces Power Loss
♦ Thermal Shutdown
♦ -40°C to +85°C Operating Temperature Range
♦ Thermally Enhanced, 16-Pin TSSOP Exposed Paddle Package
APPLICATIONs
Industrial Lighting
Architectural and Decorative Lighting
Mood Lighting
Indoor and Outdoor LED Video Displays
Automotive Lighting
LCD Display Backlighting