EVALUATION KIT AVAILABLE MAX16815/MAX16828 High-Voltage, 100mA/200mA Adjustable Linear High-Brightness LED Drivers with PWM Dimming General Description Features The MAX16815/MAX16828 current regulators operate 6.5V to 40V Operating Range from a 6.5V to 40V input voltage range and deliver Adjustable LED Current up to 100mA (MAX16815) or 200mA (MAX16828) to MAX16815: 35mA to 100mA high-brightness LED (HB LED) loads. The output current MAX16828: 35mA to 200mA is adjusted by using an external current-sense resistor 3.5% LED Current Accuracy in series with the LEDs. The MAX16815/MAX16828s dimming input allows wide-range pulsed PWM opera- High-Voltage DIM Input for Dimming Interface tion. An on-board pass element minimizes external com- Integrated Pass Element with Low-Dropout Voltage ponents while providing 3.5% output-current accuracy. (0.4V typ) The MAX16815/MAX16828 are available in a 5V Regulated Output with 4mA Source Capability thermally enhanced, 3mm x 3mm, 6-pin TDFN package Thermal Shutdown with exposed pad and in an 8-pin SO package with Output Short-Circuit Protection exposed pad they are specified over the automotive -40C to +125C temperature range. Available in Small, Thermally Enhanced, 3mm x 3mm, 6-Pin TDFN and 8-Pin SO with Applications Exposed Pad Packages Emergency Vehicle Warning Lights -40C to +125C Operating Temperature Range Signage and Indicators Ambient and Architectural Lighting Ordering Information LED Bulbs PART TEMP RANGE PIN-PACKAGE Display Backlighting MAX16815ATT+ -40C to +125C 6 TDFN-EP* MAX16815ASA+ -40C to +125C 8 SO-EP* MAX16828ATT+ -40C to +125C 6 TDFN-EP* MAX16828ASA+ -40C to +125C 8 SO-EP* Pin Configurations appear at end of data sheet. +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. Typical Operating Circuit Simplified Diagram +6.5V TO +40V 6.5V TO 40V IN OUT IN OUT C1 0.1F +5V REG V5 +5V REG LEDs V5 LEDs C2 MAX16815 0.1F EN MAX16815 MAX16828 MAX16828 CS+ CS+ PWM RSENSE R SENSE PWM DIMMING DIMMING DIM CS- CS- DIM GND GND 19-4032 Rev 2 4/14MAX16815/MAX16828 High-Voltage, 100mA/200mA Adjustable Linear High-Brightness LED Drivers with PWM Dimming Absolute Maximum Ratings IN to GND ..............................................................-0.3V to +45V Operating Temperature Range ......................... -40C to +125C CS+, CS-, V5 to GND .............................................-0.3V to +6V Junction Temperature ......................................................+150C DIM, EN to GND .........................................-0.3V to (V + 0.3V) Junction-to-Case Thermal Resistance ( ) (Note 1) IN JC OUT Short Circuited to GND Duration 6-Pin, 3mm x 3mm TDFN ..............................................9C/W (at V = +16V) ...................................................... 60 minutes 8-Pin SO ........................................................................7C/W IN Maximum Current into Any Pin (except IN and OUT) ......20mA Junction-to-Ambient Thermal Resistance ( ) (Note 1) JA Continuous Power Dissipation (T = +70C) 6-Pin, 3mm x 3mm TDFN ............................................42C/W A 6-Pin, 3mm x 3mm TDFN 8-Pin SO ......................................................................43C/W derate 18.2mW/C above +70C) ...........................1454.5mW Storage Temperature Range ............................ -60C to +150C 8-Pin SO (derate 23.3mW/C above +70C) ..........1860.5mW Lead Temperature (soldering, 10s) .................................+300C Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (V = 12V, V = 12V (SO only), C = 0.1F to GND, I = 0, V = 4V, V - = 0V (SO only), connect R = 2 (MAX16815) IN EN V5 V5 DIM CS SENSE and R = 1 (MAX16828) between CS+ and GND. TA = -40C to +125C, unless otherwise noted. Typical values are at SENSE T = +25C.) (Note 2) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage Range V (Note 3) 6.5 40.0 V IN I = 100mA 0.82 2 LOAD Ground Current I mA G I = 200mA 1 2 LOAD Shutdown Supply Current I V 0.6V (SO only) 35 70 A SHDN EN R = 2 (MAX16815) 100 SENSE Guaranteed Output Current I mA OUT R = 1 (MAX16828) 200 SENSE 35mA < I < 100mA (MAX16815) 3.5 OUT Output Current Accuracy % 35mA < I < 200mA (MAX16828) 3.5 OUT I = 100mA (current pulsed), OUT 0.1 0.4 12V < V < 40V (MAX16815) (Note 4) IN I = 100mA (current pulsed), OUT 0.1 0.6 6.5V < V < 12V (MAX16815) (Note 4) IN Dropout Voltage DVDO V I = 200mA (current pulsed), OUT 0.27 0.55 12V < V < 40V (MAX16828) (Note 5) IN I = 200mA (current pulsed), OUT 0.27 0.7 6.5V < V < 12V (MAX16828) (Note 5) IN Current rising 9.7 Output Current Slew Rate mA/s Current falling 9.7 V = 0V, V = 12V, MAX16815 130 200 270 OUT IN Short-Circuit Current mA V = 0V, V = 12V, MAX16828 250 300 350 OUT IN EN INPUT (SO ONLY) EN Input Current I -2.5 -1 -0.2 A EN EN Input Voltage High V 2.8 V IH EN Input Voltage Low V 0.6 V IL Maxim Integrated 2 www.maximintegrated.com