Evaluates: MAX16834 19-4259 Rev 0 8/08 MAX16834 Evaluation Kit General Description Features The MAX16834 evaluation (EV kit) is a fully assembled 7V to 28V Wide Supply Voltage Range and tested surface-mount PCB designed to evaluate Configured for Boost Operation the MAX16834 pulse-width modulated (PWM) HB LED driver controller in a step-up (boost) configuration and Configurable for Buck-Boost Operation optional step-up/step-down (buck-boost) operation. 1A Output Current The MAX16834 EV kit operates from a DC supply voltage of 7V to 28V and requires up to 5A. The MAX16834 EV kit Analog Linear Dimming Control circuit is configured to deliver up to 1A of current into PWM Dimming Control series LEDs with a maximum forward voltage of 28V. Open/Short-Circuit LED Fault Indicator (FLT) The MAX16834 EV kit features two different types of dimming control using either an analog linear input volt- Demonstrates Output Overvoltage Protection age or digital PWM input signal to control the LED brightness. This EV kit has an undervoltage lockout Optional Load Dump Circuit (UVLO) feature that disables the EV kit and overvoltage Fully Assembled and Tested protection that protects the circuit under no-load condi- tions. The EV kit also features a FLT PCB pad to monitor Ordering Information for open or short-circuit LED conditions at the LED+ and LED- PCB pads. The MAX16834 EV kit is a fully PART TYPE assembled and tested surface-mount board. MAX16834EVKIT+ EV Kit +Denotes lead-free and RoHS compliant. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION Not installed, ceramic capacitor 0.22F 10%, 25V X7R ceramic C1 0 (10.3mm x 10.3mm) capacitor (0603) C12 1 Murata GRM188R71E224K 10F 10%, 50V X7S ceramic TDK C1608X7R1E224K C2, C7, C8 3 capacitors (1210) Taiyo Yuden UMK325BJI06KM 1000pF 5%, 50V C0G ceramic C13, C18 2 capacitors (0603) 0.1F 10%, 50V X7R ceramic Murata GRM1885C1H102J C3 1 capacitor (0805) Murata GRM21BR71H104K D1 0 Not installed, diode (SOD323) Not installed, ceramic capacitor 60V, 3A Schottky diode (SMB) C4 0 D2 1 (0805) Diodes Inc. B360B-13-F D3, D5 0 Not installed, diodes (SOD123) 0.1F 10%, 25V X7R ceramic C5, C14, C15, 4 capacitors (0603) 100V, 300mA diode (SOD123) C16 D4 1 Murata GRM188R71E104K Diodes Inc. 1N4148W-7-F JU1 1 2-pin header Not installed, ceramic capacitors C6, C17, C19 0 (0603) 9.5H, 11.2A inductor L1 1 Sumida CDEP147NP-9R5M-95 Not installed, ceramic capacitors C9, C10 0 (1210) 60V, 3.2A n-channel MOSFET (6 TSOP) 10F 10%, 16V X7R ceramic N1 1 Vishay Si3458DV-E3 C11 1 capacitor (1206) (Top Mark: 58) Murata GRM31CR71C106K 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.MAX16834 Evaluation Kit Component List (continued) DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION R10 1 499 1% resistor (0603) 60V, 4.2 A n-c hannel M OS FE T ( 8 S O) N2 1 International Rectifier IRF7478 R11 1 232k 1% resistor (0603) Q1 0 Not installed, transistor (3 SOT23) R13 1 5.1k 5% resistor (0603) R1 1 34k 1% resistor (0603) R14 1 10k 5% resistor (0603) R2, R12 2 10k 1% resistors (0603) R15 1 8.25k 1% resistor (0603) R3, R21 0 Not installed, resistors (0805) R16 1 23.2k 1% resistor (0603) R4, R8, R22 3 0 5% resistors (0805) R17 1 10k potentiometer (single turn) 0.1 1%, 500mW sense resistor R18 1 Not installed, resistor (0805) (1206) R20 1 100k 5% resistor (0603) R5 1 IRC/TT Electronics TP1, TP2 2 PC mini red test points LRC-LR-1206LF-01-R100-F Current control HB LED driver R6, R19 0 Not installed, resistors (0603) U1 1 (20 TQFN-EP*) R7 0 Not installed, resistor (1206) Maxim MAX16834ATP+ 0.04 1%, 2W sense resistor (2512) 1 Shunt (JU1) R9 1 IRC/TT Electronics 1 PCB: MAX16834 Evaluation Kit+ LRC-LR-2512LF-01-R040-F *EP = Exposed pad. Component Suppliers SUPPLIER PHONE WEBSITE Diodes Inc. 805-446-4800 www.diodes.com International Rectifier 310-322-3331 www.irf.com IRC, Inc. 361-992-7900 www.irctt.com Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Sumida Corp. 847-545-6700 www.sumida.com Taiyo Yuden 800-348-2496 www.t-yuden.com TDK Corp. 847-803-6100 www.component.tdk.com Vishay 402-563-6866 www.vishay.com Note: Indicate that you are using the MAX16834 when contacting these component suppliers. 2 Evaluates: MAX16834