MAX16819ATT+

Price range: $1.12 - $1.49

The MAX16819/MAX16820, step-down constant-currenthigh-brightness LED (HB LED) drivers provide a cost-effectivesolution for architectural and ambient lighting, LED bulbs such asMR16 and other LED illumination applications.The MAX16819/MAX16820 operate from a 4.5V to 28Vinput voltage range and feature a 5V/10mA on-boardregulator. A high-side current-sense resistor adjusts theoutput current and a dedicated PWM input (DIM)enables a wide range of pulsed dimming.The MAX16819/MAX16820 are well suited for applicationsrequiring a wide input voltage range. The high-sidecurrent-sensing and an integrated current-setting circuitryminimize the number of external components whiledelivering an LED current with ±5% accuracy. A hystereticcontrol algorithm ensures excellent input-supplyrejection and fast response during load transients andPWM dimming. The MAX16819 features a 30% inductorcurrent ripple and the MAX16820 features a 10% currentripple. These devices operate up to 2MHz switching frequency,thus allowing for small component size.The MAX16819/MAX16820 operate over the -40°C to+125°C automotive temperature range and are availablein 3mm x 3mm x 0.8mm, 6-pin TDFN packages.ApplicationsArchitectural, Industrial, and Ambient LightingHeads-Up DisplayIndicators and Emergency Lighting