Evaluates: MAX16803 19-0634 Rev 1 11/08 MAX16803 Evaluation Kit General Description Features The MAX16803 evaluation kit (EV kit) demonstrates a 6.5V to 40V Supply Voltage Range current-controlled, high-output-current LED driver Selectable 150mA, 250mA, or 350mA Output based on the MAX16803 current regulator. The EV kit is Current capable of supplying regulated output currents of up to 350mA, can run at supply voltages between 6.5V and 5V-Regulated Output 40V, and can operate at temperatures ranging from PWM Dimming Control -40C to +125C. Package Dissipates Up to 2.666W at T = +70C A The MAX16803 EV kit features a PWM dimming control, Lead-Free and RoHS compliant user-selectable three-level output current setting, and a 5V-regulated output, which can supply up to 4mA of out- Fully Assembled and Tested put current. The MAX16803 EV kit is a fully assembled and tested board. Component List DESIGNATION QTY DESCRIPTION 0.1F, 50V X7R ceramic capacitor (0603) C1 1 Murata GRM188R71H104KA93D or TDK C1608X7R1H104K 0.1F, 10V X7R ceramic capacitor (0402) C2 1 Murata GRM155R71C104KA88D or KEMET C0402C104K8RACTU J1, J2 2 0.1in, 3-pin headers (through hole) J3, PWM IN, 5 0.1in, 2-pin headers (through hole) RSNS, VIN, V5 Figure 1. MAX16803 EV Kit Board LED+, LED- 2 0.1in, 1-pin headers (through hole) 0.56 1%, 1/4W resistor (0805) R1 1 Susumu RP2012T-R56-F Ordering Information 0.82 1%, 1/4W resistor (0805) R2 1 PART TYPE Susumu RP2012T-R82-F MAX16803EVKIT+ EV Kit High-output-current LED driver U1 1 (16 TQFN-EP*) +Denotes lead-free and RoHS compliant. Maxim MAX16803ATE+ 1 PCB: MAX16803 Evaluation Kit+ *EP = Exposed pad. Component Suppliers SUPPLIER PHONE WEBSITE KEMET Corp. 864-963-6300 www.kemet.com Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Susumu International USA 208-328-0307 www.susumu-usa.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX16803 when contacting these component suppliers. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.MAX16803 Evaluation Kit J1 132 PWM IN 1 2 16 15 14 13 J3 LED OUT EN N.C. DIM 1 1 LED+ 1 12 2 2 LED- OUT GND U1 2 11 IN V5 1 1 C1 C2 2 MAX16803 2 0.1F 0.1F 3 R2 10 IN CS- J2 VIN 0.82 V5 RSNS 1 1% 1 2 4 9 2 3 N.C. CS+ R1 0.56 N.C. N.C. N.C. N.C. 1% 5 6 7 8 Figure 2. MAX16803 EV Kit Schematic 3) Close jumper J3. Quick Start 4) Open all pins of jumper J2 to select 150mA output Recommended Equipment current. Before beginning, the following equipment is needed: 5) Connect a 350mA-rated LED between LED+ and 0 to 30V or above, 0.5A DC power supply LED-. Procedure 6) Turn on the power supply and increase the input The MAX16803 EV kit is fully assembled and tested. voltage above 6.5V. The LED glows with full bright- Follow these steps to verify operation. Caution: Do not ness. Measure the LED current, and it shows turn on the power supply until all connections are 150mA 3.5%. completed. 7) Increase the supply voltage to 16V and the LED 1) Connect a DC power supply (0 to 30V or above, current will be stable. Measure the LED current and 0.5A) to VIN. it shows 150mA 3.5%. Measure voltage across V5, and it shows 5.27V 5%. 2) Place jumper J1 between pins 1-2 to enable U1. 2 Evaluates: MAX16803