Evaluates: MAX17075 19-4396 Rev 0 12/08 MAX17075 Evaluation Kit General Description Features The MAX17075 evaluation kit (EV kit) is a fully assem- +2.5V to +5.5V Input-Voltage Range bled and tested surface-mount circuit board that pro- Output Voltages (+4.5V to +5.5V Input Voltage) vides the voltages and features required for active- matrix thin-film transistor (TFT), liquid-crystal display +13V Output at 500mA (Step-Up Switching (LCD) panels in LCD monitors and LCD TVs. The EV kit Regulator) contains a step-up switching regulator, a two-stage pos- +30V Output at 30mA (Positive Charge Pump) itive charge pump for the TFT gate-on supply, a single- -7V Output at 60mA (Negative Charge Pump) stage negative charge pump for the TFT gate-off sup- ply, and a high-current op amp. Also included is a logic- High-Current Op Amp (500mA Peak Current) controlled high-voltage switch array, with capacitor con- 1.2MHz Switching Frequency trol delay, for the positive gate-driver supply. A capaci- tive dummy load is provided at the high-voltage switch All Output Voltages are Resistor Adjustable output for ease of testing without an attached panel. Logic-Controlled High-Voltage Switches with The MAX17075 EV kit is designed to operate from a DC Capacitor Control Delay supply voltage of +2.5V to +5.5V. At +5V (10%) nomi- nal input voltage, the step-up switching regulator pro- Low-Profile Surface-Mount Components vides a +13V output and up to 500mA. The positive Lead(Pb)-Free and RoHS Compliant charge pump provides a +30V output and up to 30mA. The negative charge pump provides a -7V output and Fully Assembled and Tested up to 60mA. The high-current op amp provides a +6.5V output that can source or sink 500mA peak current. The Ordering Information high-voltage switch array is controlled by external logic. PART TYPE The MAX17075 switches at 1.2MHz, allowing the use of tiny surface-mount components. The MAX17075 thin MAX17075EVKIT+ EV Kit QFN package (0.8mm maximum height) with low-profile +Denotes lead(Pb)-free RoHS compliant. external components allows this circuit to be less than 3mm high. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 10F 20%, 6.3V X5R ceramic 0.033F 10%, 16V X7R ceramic capacitor (0603) capacitors (0603) C1, C2 2 C8 1 Murata GRM188R71C333K Murata GRM188R60J106M TDK C1608X7R1E333K TDK C1608X5R0J106M 0.22F 10%, 6.3V X5R ceramic 10F 20%, 25V X5R ceramic capacitors (1206) capacitor (0402) C9 1 C3, C4 2 Murata GRM31CR61E106M Murata GRM155R60J224K TDK C1005X5R0J224K TDK C3216X5R1E106M 1F 10%, 50V X7R ceramic 1F 10%, 6.3V X5R ceramic capacitors (1206) capacitor (0402) C5 1 C10, C14 2 Murata GRM155R60J105K Murata GRM31MR71H105KA TDK C1005X5R0J105K TDK C3216X7R1H105K 1F 10%, 25V X5R ceramic 0.1F 10%, 50V X7R ceramic capacitor (0603) C11, C15, C16, capacitors (0603) C6 1 4 Murata GRM188R61E105K C17 Murata GRM188R71H104K TDK C1608X7R1H104K TDK C1608X5R1E105K 220pF 10%, 50V X7R ceramic 1000pF 10%, 50V X7R ceramic capacitor (0805) capacitor (0402) C12 1 C7 1 Murata GRM216R71H102K Murata GRM155R71H221K TDK C2012X7R1H102K TDK C1005X7R1H221K 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.MAX17075 Evaluation Kit Component List (continued) DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 0.01F 10%, 10V X5R ceramic Not installed, transistor (SOT223) capacitor (0402) Recommended: -20V, -1.5A pnp C13 1 Q2 0 Murata GRM155R61A103K transistor (SOT223) TDK C1005X5R1A103K Fairchild BCP69 1500pF 10%, 50V X7R ceramic R1 1 10 5% resistor (0603) capacitor (0603) Not installed, 100 5% resistor C18 1 R2 0 Murata GRM188R71H152K (0603) recommended TDK C1608X7R1H152K R3, R4, R5, R7 4 100k 1% resistors (0603) C19 0 Not installed, capacitor (1206) R6 1 13.7k 1% resistor (0603) C20 0 Not installed, capacitor (0402) R8 1 187k 1% resistor (0603) 0.22F 10%, 25V X7R ceramic R9, R16 2 20k 1% resistors (0603) capacitor (0603) C21 1 Murata GRM188R71E224K R10 1 82k 5% resistor (0603) TDK C1608X7R1E224K R11 1 8.45k 1% resistor (0603) 3A, 30V Schottky diode (M-Flat) R12 1 10k 1% resistor (0603) D1 1 Toshiba CMS02 R13 1 10k 5% resistor (0603) (Top Mark: S2) R14 1 1k 5% resistor (0603) 220mA, 100V dual diodes (SOT23) R15 1 464k 1% resistor (0603) Fairchild MMBD4148SE D2, D3, D4 3 (Top Mark: D4) 10k SMT cermet trimmer, 9 to 15 R17 1 turns JU1 1 3-pin header JU2, JU3 2 2-pin headers Boost regulator (24 TQFN) U1 1 Maxim MAX17075ETG+ 3H, 3A inductor DC L1 1 Sumida CDRH6D28-3R0 3 Shunts 1 PCB: MAX17075 Evaluation Kit+ Not installed, transistor (SOT223) Recommended: 20V, 1A npn Q1 0 transistor (SOT223) Fairchild BCP68 Component Suppliers SUPPLIER PHONE WEBSITE Fairchild Semiconductor 888-522-5372 www.fairchildsemi.com Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Sumida Corp. 847-545-6700 www.sumida.com TDK Corp. 847-803-6100 www.component.tdk.com Toshiba America Electronic Components, Inc. 949-623-2900 www.toshiba.com/taec Note: Indicate that you are using the MAX17075 when contacting these component suppliers. Procedure Quick Start The MAX17075 EV kit is fully assembled and tested. Required Equipment Follow the steps below to verify board operation. Before beginning, the following equipment is needed: Caution: Do not turn on the power supply until all connections are completed. +4.5V to +5.5V, 5A DC power supply 1) Verify that a shunt is installed across pins 2-3 of One voltmeter jumper JU1 (VCOM unbuffered). 2 Evaluates: MAX17075