General Description

The MAX16822A/MAX16822B step-down constant-current high-brightness LED (HB LED) drivers provide a cost-effective design solution for automotive interior/exterior lighting, architectural and ambient lighting, LED bulbs, and other LED illumination applications.

Benefits and Features

• Cost-Effective Solution for Wide Range of LED

   Lighting Applications

• 6.5V to 65V Input Voltage Range

• Output Current Up to 500mA

• ±3 LED Current Accuracy

• Selectable Dimming Options: Linear or PWM

• Minimal Component Count Saves Cost and Space

• On-Board 65V, 0.85Ω Power MOSFET

• Resistor-Programmable Constant LED Current

• Integrated High-Side Current Sense with 200mV

   Current-Sense Reference

• Hysteretic Control: Up to 2MHz Switching

   Frequency

• Protection Features and Wide Operating

   Temperature Range Improves Reliability

• Thermal-Foldback Protection Dims LEDs to

   Minimize Overheating

• Thermal-Shutdown Protection

• Available in an 8-Pin SO Package

• Operation Over -40°C to +125°C Temperature

   Range

Applications

   Architectural, Industrial, and Ambient Lighting

   Automotive RCL, DRL, and Fog Lights

   Heads-Up Displays

   Indicator and Emergency Lighting