MAX6603EVKIT+

19-0522; Rev 0; 4/06 MAX6603 Evaluation Kit The MAX6603 evaluation kit (EV kit) is an assembled and tested PC board that allows evaluation of the MAX6603 dual-channel, platinum resistive temperature devices (Pt-RTD) to voltage signal conditioner. The MAX6603 EV kit monitors two series-connected Pt-RTDs on channel 1. It excites and amplifies the signal from the Pt-RTDs to achieve a high-voltage, filtered signal on channel 1. The EV kit comes with the MAX6603ATB+ installed. Features ♦ Provides One 200Ω Equivalent Pt-RTD ♦ Supports Two External Pt-RTDs ♦ Two Diagnostic LED Indicators ♦ Fully Assembled and Tested ♦ Includes Demo PC Board ♦ On-Board 5V Regulator ♦ Easy Access User Pads Ordering Information PART TYPE IC PACKAGE MAX6603EVKIT EV kit 10 TDFN-EP Component List DESIGNATION C1 C2–C5 C6, C7 QTY 1 4 DESCRIPTION 0.1µF ±10%, 50V X7R ceramic capacitor (0603) TDK C1608X7R1H104K 0.01µF ±5%, 25V C0G ceramic capacitors (0603) TDK C1608C0G1E103J 0 Open (0603) C8 1 10µF ±10%, 10V X5R ceramic capacitor (1210) TDK C3225X5R1A106K D1 1 D2 1 Schottky diode (3-pin SOT23) Central Semi CMPSH-3 Zener diode, 6.2V, 500mW (2-pin SOD-123) Diodes Inc. MMSZ5234B DESIGNATION QTY JU1 1 3-pin header (gold contact finish) DESCRIPTION JU2, JU3, JU4 3 2-pin headers (gold contact finish) LED1, LED2 2 Red LEDs (0603) Panasonic LNJ208R8ARA R1, R2 2 510Ω ±5% resistors (0603) RTD1, RTD2 2 100Ω ±0.2% platinum RTDs Honeywell HEL-777-A-T-0 (plastic SIP) U1 1 MAX6603ATB+ (10-pin TDFN-EP) U2 1 MAX667ESA (8-pin SO) — 4 Shunts (gold contact finish) Component Suppliers SUPPLIER PHONE WEBSITE Central Semiconductor 631-435-1110 www.centralsemi.com Diodes Incorporated 805-446-4800 www.diodes.com TDK 847-803-6100 www.component.tdk.com Note: Indicate you are using the MAX6603 when contacting these component suppliers. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 Evaluates: MAX6603 General Description Evaluates: MAX6603 MAX6603 Evaluation Kit Quick Start Required Equipment Before you begin, you need the following equipment: • Maxim MAX6603 EV kit • 6V to 12V regulated DC supply Procedure Place a shunt on pin 2 and pin 3 of JU1 to apply a usersupplied 3.0V to 5.5V power supply to VIN(+) and GND(-) pads. Table 1 shows the JU1 jumper settings. Table 1. External/On-Board Power-Supply Selection JUMPER SHUNT POSITION 1) Place the shunt on pins 1 and 2 of JU1 (VCC connects to the on-board 5V voltage regulator). 2) Place the shunts on JU2 and JU3 (LED1 and LED2 connect to DG1 and DG2, respectively). 3) Place the shunt on JU4 (Connects the on-board RTD1 and RTD2). 4) Connect the 6V to 12V DC supply to the HVIN(+) pad and GND(-) pad. 5) Verify LED1 is off and LED2 is on. 6) Verify the voltage on the OUT1 pad is approximately 1.10V at room temperature. Detailed Description Platinum-RTD The MAX6603 EV kit includes two 100Ω Pt-RTDs, configuration jumpers, diagnostic fault indicator LEDs, and a 5V voltage regulator. The two board-mounted 100Ω Pt-RTDs are wired in series to form an equivalent 200Ω Pt-RTD and connected to channel 1 only. The boardmounted Pt-RTDs can be electrically disconnected from the circuit allowing an external Pt-RTD to be connected to the MAX6603 through twisted-pair cabling. The two diagnostic indicator LEDs are driven by the MAX6603 DG1 and DG2 digital diagnostic outputs. The MAX6603 EV kit can be wired into a target system with appropriate jumper configurations and operate from the target system supply voltage (3.0V to 5.5V). The MAX6603 EV kit can provide stand-alone evaluation by using the on-board 5V regulator and Pt-RTDs. Disconnect the on-board Pt-RTDs, LEDs, and 5V regulator to connect the MAX6603 EV kit directly to a target system. 2 1-2* Apply a user-supplied 6V to 12V supply to HVIN. 2-3 Apply a user-supplied 3.0V to 5.5V supply to VIN. JU1 *Default position. Fault Detection The DG1 and DG2 pins are the diagnostic signal outputs for the RS1 and RS2 inputs, respectively. The DG1 and DG2 pins assert low upon fault detection. Refer to the MAX6603 IC data sheet for fault detection conditions. If the shunt is placed on JU2 (as shown in Table 2), LED1 lights up when DG1 is asserted low. If the shunt is placed on JU3 (as shown in Table 3), LED2 lights up when DG2 is asserted low. Table 2. LED1 Connection JUMPER SHUNT POSITION 1-2* DESCRIPTION LED1 connected to the DG1 pin. JU2 No shunt LED1 disconnected from the DG1 pin. *Default position. Table 3. LED2 Connection JUMPER SHUNT POSITION 1-2* DESCRIPTION LED2 connected to the DG2 pin. JU3 Power-Supply Configuration Connect a user supplied 6V to 12V supply to the HVIN(+) and GND(-) pads. Place the shunt on pin 1 and pin 2 of JU1 to use the on-board +5V regulator. DESCRIPTION No shunt LED2 disconnected from the DG2 pin. *Default position. _______________________________________________________________________________________ MAX6603 Evaluation Kit Table 4. Jumper Settings JUMPER SHUNT POSITION DESCRIPTION 1-2* On-board Pt-RTDs connected to channel RS1. No shunt On-board Pt-RTDs disconnected from channel RS1. Apply external Pt-RTDs. JU4 *Default position. 2 1 C8 10μF D2 2 VCC JU1 C1 0.1μF OUT IN U2 MAX667 LBO 1 LBI DD 8 3 D1 1 HVIN 7 3 GND GND SHDN SET 4 5 6 1 2 3 VIN GND 1 RS1+ 4 C2 0.01μF C6 OPEN RS1+ VCC OUT1 RTD2 RS1- RTD1 JU4 RS1- MAX6603 3 OUT2 RS2+ GND GND 9 OUT2 LED2 2 C5 0.01μF VCC DG1 7 C7 OPEN RS2- R1 510Ω JU2 DG1 C3 0.01μF C4 0.01μF LED1 U1 5 RS2+ OUT1 8 DG2 RS2- GND 6 10 JU3 R2 510Ω VCC GND DG2 GND Figure 1. MAX6603 EV Kit Schematic _______________________________________________________________________________________ 3 Evaluates: MAX6603 On-Board RTD Connection The MAX6603EVKIT has two on-board 100Ω Pt-RTDs. Place the shunt on JU4 (as shown in Table 4) to connect the 200Ω equivalent Pt-RTD to the input channel RS1. Remove the shunt to apply the external Pt-RTD. Evaluates: MAX6603 MAX6603 Evaluation Kit Figure 2. MAX6603 EV Kit Component Placement Guide— Component Side Figure 3. MAX6603 EV Kit PC Board Layout—Component Side Figure 4. MAX6603 EV Kit PC Board Layout—Solder Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 4 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2006 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc.