MAX14575A–MAX14575C Evaluation Kits Evaluate: MAX14575A/MAX14575AL/ MAX14575B/MAX14575C General Description Benefits and Features The MAX14575A–MAX14575C evaluation kits (EV kits) are fully assembled and tested circuit boards that demonstrate the functionality of the MAX14575A–MAX14575C adjustable current-limit switches in an 8-pin TDFN package. Each EV kit features jumpers for configuration and evaluation of all versions of the IC, which include autoretry, latchoff, and continuous current-limit versions. Input power to the EV kits is provided by a standard 5V USB bus or an external 5V power supply. ● Evaluate Preselected Threshold or Adjustable Threshold by Simple Jumper Configuration ● Easy Connections through Binding Posts ● Status LEDs Give Visual Indication of Power Present and Fault Conditions ● Proven PCB Layout ● Fully Assembled and Tested Ordering Information appears at end of data sheet. Component List DESIGNATION QTY BP1, BP3 2 Red binding posts Keystone 7006 BP2, BP4 2 C1 C2 C3, C4 DESIGNATION QTY LED2 1 Red LED (1206) Lite-On LTST-C150CKT Black binding posts Keystone 7007 R1 1 309Ω ±1% resistor (0805) R2 1 10kΩ ±1% resistor (0805) 1 1µF ±10%, 25V X5R ceramic capacitor (0603) Murata GRM188R61E105K R3 1 332Ω ±1% resistor (0805) R4, R9, R11 3 475kΩ ±1% resistors (0805) R5, R12 0 Not installed, resistors (0805) 1 0.1µF ±10%, 25V X5R ceramic capacitor (0603) Murata GRM188R61E104K R6 1 499kΩ ±1% resistor (0805) 2 DESCRIPTION 10µF ±10%, 25V X5R ceramic capacitors (0805) TDK C2012X5R1E106K 1 USB type-B right-angle receptacle Molex 67068-9000 JU1 1 8-pin, dual-row header, 0.1in centers JU2, JU5, JU10, JU11 4 2-pin, single-row headers, 0.1in centers JU3 1 4-pin header, 0.1in centers LED1 1 Green LED (1206) Kingbright APTL3216CGCK J1 19-6683; Rev 0; 5/13 DESCRIPTION R7 1 84.5kΩ ±1% resistor (0805) R8, R15 2 51.1kΩ ±1% resistors (0805) R10 1 1kΩ ±1% resistor (0805) R16 1 12-turn, 500kΩ potentiometer Murata PV37W504C01B00 TP1 1 White test point TP2, TP4, TP5, TP7 4 Black test points TP3, TP6 2 Red test points TP8 1 Yellow test point U1 1 See the EV Kit-Specific Component List U2 1 NC7WZ07 — 5 Shunts — 1 PCB: MAX14575A/B/C EVKIT MAX14575A–MAX14575C Evaluation Kits Evaluate: MAX14575A/MAX14575AL/ MAX14575B/MAX14575C EV Kit-Specific Component List PART DESIGNATION 250mA to 2.5A adjustable current-limit switch (8 TDFN-EP**) Maxim MAX14575AETA+ (Top Mark: BMV) MAX14575AEVKIT# MAX14575BEVKIT# DESCRIPTION U1* MAX14575CEVKIT# 250mA to 2.5A adjustable current-limit switch (8 TDFN-EP**) Maxim MAX14575BETA+ (Top Mark: BMX) 250mA to 2.5A adjustable current-limit switch (8 TDFN-EP**) Maxim MAX14575CETA+ (Top Mark: BMY) *For evaluation of the MAX14575AL, samples must be ordered separately and installed in place of U1 by the customer. **EP = Exposed pad. Component Suppliers SUPPLIER PHONE WEBSITE Keystone Electronics Corp. 800-221-5510 www.keyelco.com Kingbright Corporation 909-468-0500 www.kingbrightusa.com Lite-On, Inc. 408-946-4873 www.us.liteon.com Molex 800-786-6539 www.molex.com Murata Americas 800-241-6574 www.murataamericas.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX14575A–MAX14575C when contacting these component suppliers. Quick Start Required Equipment ● MAX14575A–MAX14575C EV kit ● 5V, 2.6A power supply Procedure The EV kits are fully assembled and tested. Follow the steps below to verify board operation: 1) Verify that a shunt is installed across pins 1-3 on jumper JU3 (powers the device and peripherals at TP6) and that a shunt is installed across pins 1-2 on jumper JU5 (enables the device). 2) Verify that a shunt is installed across pins 1-2 on jumper JU10 (connects the FLAG output on the device to LED). 3) Verify that a shunt is not installed across pins 1-2 on jumper JU2 (an installed jumper forces LED2 on). 4) Install a shunt at the desired location on jumper JU1 to set the current limit according to Table 1. 5) Connect the 5V, 2.6A power supply at TP6. 6) Verify that the green LED (LED1) is lit, indicating that the device is powered. www.maximintegrated.com 7) Connect TP8 or BP3 to the system in which the device will be evaluated, or connect a variable load to TP8. 8) If current limit is reached, LED2 glows red and device goes into its defined overcurrent fault response. See the MAX14575A/MAX14575AL/MAX14575B/ MAX14575C IC data sheet for more details. Detailed Description of Hardware The MAX14575A–MAX14575C EV kits are fully assembled and tested circuit boards that demonstrate the functionality of the MAX14575A–MAX14575C adjustable current-limit switches in an 8-pin TDFN package. Each EV kit features jumpers for configuration and evaluation of all versions of the device, which include autoretry, latchoff, and continuous current-limit versions. Input power to the EV kit is provided by a standard 5V USB bus or an external 5V power supply. Included with the EV kit is a USB type-A male to USB type-B male cable, providing a convenient way to power the EV kit’s peripherals without disturbing evaluation of the current-limiting function of the device. Input power can also be supplied by an external DC source. Maxim Integrated │ 2 MAX14575A–MAX14575C Evaluation Kits Evaluate: MAX14575A/MAX14575AL/ MAX14575B/MAX14575C Power Supply The EV kit peripherals are powered by a user-supplied USB port at J1 or by a 5V DC power supply connected between VEXT and GND. Jumper JU3’s position selects the power source. With a shunt shorting pins 1-2 on JU3, the EV kit is powered at VEXT, while a shunt shorting pins 1-3 means that the EV kit is powered by the supply present at the input of the device. Placing the shunt on pins 1-4 on JU3 allows the peripheral devices to be powered from an external power supply connected at TP3. The device must always be powered by an external supply connected at TP6 or BP1. See Table 1 for jumper settings. Flag Indicator LED installed at 1-2 and jumper JU2 has no shunt installed, then an overcurrent fault causes LED2 to glow red. See Table 1 for jumper settings. Preset and Adjustable Current Limits The EV kit includes three common overcurrent limits as jumper-configurable options, as well as a fourth jumper-configurable option for an adjustable limit. Set the current limit to 250mA and install a shunt across pins 1-2 on jumper JU1. For the 1.5A current limit, install a shunt across pins 3-4 on JU1. For the 2.5A current limit or the adjustable limit, install a shunt across pins 5-6 or 7-8 on JU1, respectively. The adjustable limit is set using the potentiometer (R16). See Table 1 for jumper settings. The EV kit includes a built-in LED to give visual notification of an overcurrent fault. If jumper JU10 has a shunt Table 1. Jumper Settings (JU1–JU3, JU5, JU10, JU11) JUMPER SHUNT POSITION JU1 JU2 JU3 JU5 JU10 JU11 DESCRIPTION 1-2 250mA current limit 3-4* 1.5A current limit 5-6 2.5A current limit 7-8 Adjustable current limit (adjust current limit with R16) 1-2 Force flag Not installed* Normal operation 1-2* Peripherals are powered by USB (J1) 1-3 Peripherals are powered by the same supply as the device 1-4 Peripherals are powered by an external 5V supply 1-2* Enables the device Not installed Disables the device 1-2* Enables the fault indicator LED (LED2) Not Installed Disables the fault indicator LED (LED2) 1-2 Not installed* Shorts input and output of the device Normal operation *Default position. www.maximintegrated.com Maxim Integrated │ 3 MAX14575A–MAX14575C Evaluation Kits Evaluate: MAX14575A/MAX14575AL/ MAX14575B/MAX14575C Figure 1. MAX14575A–MAX14575C EV Kit Schematic www.maximintegrated.com Maxim Integrated │ 4 MAX14575A–MAX14575C Evaluation Kits Evaluate: MAX14575A/MAX14575AL/ MAX14575B/MAX14575C 1.0” Figure 2. MAX14575A–MAX14575C EV Kit Component Placement Guide—Component Side 1.0” Figure 3. MAX14575A–MAX14575C EV Kit PCB Layout— Component Side 1.0” Figure 4. MAX14575A–MAX14575C EV Kit PCB Layout— Layer 2 www.maximintegrated.com Maxim Integrated │ 5 MAX14575A–MAX14575C Evaluation Kits Evaluate: MAX14575A/MAX14575AL/ MAX14575B/MAX14575C 1.0” Figure 5. MAX14575A–MAX14575C EV Kit PCB Layout— Layer 3 www.maximintegrated.com 1.0” Figure 6. MAX14575A–MAX14575C EV Kit PCB Layout— Solder Side Maxim Integrated │ 6 MAX14575A–MAX14575C Evaluation Kits Evaluate: MAX14575A/MAX14575AL/ MAX14575B/MAX14575C Ordering Information PART TYPE MAX14575AEVKIT# EV Kit MAX14575BEVKIT# EV Kit MAX14575CEVKIT# EV Kit #Denotes RoHS compliant. www.maximintegrated.com Maxim Integrated │ 7 MAX14575A–MAX14575C Evaluation Kits Evaluate: MAX14575A/MAX14575AL/ MAX14575B/MAX14575C Revision History REVISION NUMBER REVISION DATE 0 5/13 DESCRIPTION Initial release PAGES CHANGED — For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. 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