High-Voltage, 100mA/200mA Adjustable Linear High-Brightness LED Drivers with PWM Dimming

The MAX16815/MAX16828 current regulators operate from a 6.5V to 40V input voltage range and deliver up to 100mA (MAX16815) or 200mA (MAX16828) to high-brightness LED (HB LED) loads. The output current is adjusted by using an external current sense resistor in series with the LEDs. The MAX16815/MAX16828's dimming input allows wide-range "pulsed" PWM operation. An on-board pass element minimizes external components while providing ±3.5% output-current accuracy.

The MAX16815/MAX16828 are available in a thermally enhanced, 3mm x 3mm, 6-pin TDFN package with exposed pad and in an 8-pin SO package with exposed pad; they are specified over the automotive -40°C to +125°C temperature range.

Applications

* Ambient and Architectural Lighting * Display Backlighting * Emergency Vehicle Warning Lights * LED Bulbs * Signage and Indicators

* 6.5V to 40V Operating Range

* Adjustable LED Current

* MAX16815: 35mA to 100mA

* MAX16828: 35mA to 200mA

* ±3.5% LED Current Accuracy

* High-Voltage DIM Input for Dimming Interface

* Integrated Pass Element with Low-Dropout Voltage (0.4V typ)

* 5V Regulated Output with 4mA Source Capability

* Thermal Shutdown

* Output Short-Circuit Protection

* Available in Small, Thermally Enhanced, 3mm x 3mm, 6-Pin TDFN and 8-Pin SO with Exposed Pad Packages

* -40°C to +125°C Operating Temperature Range