Evaluates: MAX16818 19-0842 Rev 0 6/07 MAX16818 Evaluation Kit General Description Features The MAX16818 evaluation kit (EV kit) is a fully assem- 6V to 28V Input-Voltage Range bled and tested surface-mount printed-circuit board 1A Output Current into an 18V LED String (PCB) designed to evaluate the MAX16818 pulse-width modulation (PWM) LED driver controller in a buck-boost Pulse-Width Modulated LED Current Dimming configuration. Resistor-Adjustable Overvoltage Protection and The MAX16818 EV kit operates from a DC supply volt- Switching Frequency age of 6V to 28V. The EV kits output is configured to deliver at least 1A of current into an 18V series LED 180 Out-of-Phase Clock Output string. The LED brightness can be dimmed using a dig- Fully Assembled and Tested ital PWM signal. The EV kit provides an option to configure the MAX16818 ICs overvoltage protection, switching fre- quency, and frequency compensation. The MAX16818 Ordering Information EV kit also features a 180 out-of-phase clock output PCB pad. PART TEMP RANGE IC PACKAGE MAX16818EVKIT+ 0C to +70C* 28 TQFN-EP** +Denotes a lead-free and RoHS-compliant EV kit. *This limited temperature range applies to the EV kit PCB only. The MAX16818 IC temperature range is -40C to +125C. **EP = Exposed paddle. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 2.2F 10%, 50V X7R ceramic 0.1F 10%, 16V X7R ceramic C1 1 capacitor (1206) C12 1 capacitor (0603) Murata GRM188R71C104K Murata GRM31CR71H225K 1F 20%, 50V X7R ceramic 100pF 5%, 50V C0G ceramic C13 1 C2 1 capacitor (0805) capacitor (0603) Murata GRM1885C1H101J Murata GRM21BR71H105M 4.7F 10%, 6.3V X7R ceramic 100F, 50V electrolytic capacitor C14 1 (8mm x 10.2mm) C3 1 capacitor (0603) Panasonic EEEFK1H101P Murata GRM188R70J475K 0.47F 10%, 6.3V X7R ceramic 60V, 2A Schottky diode (SMB) D1 1 C4 1 capacitor (0603) Diodes Inc. B260-13-F Murata GRM188R70J474K JU1 1 3-pin header 1000pF 10%, 50V X7R ceramic JU2 1 2-pin header C5 1 capacitor (0603) 8.8H, 4A inductor DC L1 1 Murata GRM188R71H102K Sumida CDEP105-8R8 10F 10%, 50V X7R ceramic 40V, 4.9A n- channel M OSFE T ( S O8) N1 1 C6, C7 2 capacitors (2220) V i shay Si 4446DY Murata GRM55DR71H106K 60V, 115mA n-channel MOSFETs C8, C10 0 Not installed, capacitors (0603) (SOT23) N2N5 4 0.22F 10%, 16V X7R ceramic Central Semiconductor 2N7002 C9 1 capacitor (0603) LEAD-FREE Murata GRM188R71C224K -20V, -3.8A p-channel MOSFET 2200pF 10%, 50V X7R ceramic P1 1 (TSOP-6) C11 1 capacitor (0603) Vishay Si3467DV-T1-E3 Murata GRM188R71H222K Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim s website at www.maxim-ic.com.MAX16818 Evaluation Kit Component List (continued) DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION NPN bipolar transistor (SOT223) R18 1 2k 1% resistor (0603) Q1 1 Fairchild Semiconductor PZT3904 R19 1 499 1% resistor (0603) PNP bipolar transistor (SOT23) 0.11 1%, 0.5W sense resistor Q2 1 Fairchild Semiconductor R20 1 (1206) MMBT3906 IRC LRC-LRC1206LF-01-R11-F R1 1 1k 1% resistor (1206) R21 1 30.1k 1% resistor (0603) R2 1 12.1k 1% resistor (0603) R22 1 40.2k 1% resistor (0603) R3, R7, R15, 100k SMT cermet trimmer, 11 4 10k 1% resistors (0603) R23 1 R16 turns R4, R5 2 1 1% resistors (0603) MAX16818ATI+ (28-pin TQFN-EP, U1 1 R6 1 4.99k 1% resistor (0402) 5mm x 5mm) R8 1 221k 1% resistor (0402) Voltage-output, high-side current- U2 1 sense amplifier R9 1 100k 1% resistor (0402) MAX4073TAXK+ (5-pin SC70-5) R10 1 12.4k 1% resistor (0402) Low-voltage, adjustable precision R11 1 105k 1% resistor (0603) shunt regulators (SOT23) R12, R13 2 1k 5% resistors (0805) U3, U4 2 Texas Instruments 0.007 2%, 0.5W sense resistor TL431AQDBZRQ1 R14 1 (2010) 2 Shunts IRC LRC-LRF2010LF-01-R007-G 1 PCB: MAX16818 Evaluation Kit+ R17 1 1k 1% resistor (0603) Component Suppliers SUPPLIER PHONE WEBSITE Central Semiconductor 631-435-1110 www.centralsemi.com Diodes Inc. 805-446-4800 www.diodes.com Fairchild Semiconductor 888-522-5372 www.fairchildsemi.com IRC, Inc. 361-992-7900 www.irctt.com Murata Mfg. Co., Ltd. 770-436-1300 www.murata.com Panasonic Corp. 800-344-2112 www.panasonic.com Sumida Corp. 847-545-6700 www.sumida.com Vishay/Vitramon 203-268-6261 www.vishay.com Note: Indicate that you are using the MAX16818 when contacting these component suppliers. 2 Evaluates: MAX16818