MAX14571EVKIT# Analog Devices

Evaluates: MAX14571MAX14573 MAX14571 Evaluation Kit General Description Features The MAX14571 evaluation kit (EV kit) demonstrates 6V to 36V Operating Voltage Range the MAX14571 adjustable overvoltage and overcurrent Jumper-Configurable Current Limit protector in a 14-pin TSSOP surface-mount package with Proven PCB Layout an exposed pad. The EV kit features jumper-configurable SETI resistors and can handle up to 36V input supply. Fully Assembled and Tested The EV kit can also be used to evaluate the MAX14572 and MAX14573 devices with IC replacement of U1. Request free samples from the factory when ordering the Ordering Information appears at end of data sheet. EV kit. MAX14571 EV Kit Photo 19-6772 Rev 0 8/13Evaluates: MAX14571MAX14573 MAX14571 Evaluation Kit Quick Start Detailed Description of Hardware The MAX14571 EV kit demonstrates the MAX14571 Required Equipment adjustable overvoltage and overcurrent protector. The MAX14571 EV kit jumper configurations by default are configured to test 6V to 36V DC power supply internal UVLO and internal OVLO thresholds. There are jumpers that can be configured and resistor pads 5V DC power supply to test user-defined UVLO and OVLO thresholds. The Voltage meter overcurrent threshold is determined by external resistors USB type-A to USB type-B cable connected to the SETI pin and is jumper configurable through jumper JU1. Procedure The EV kit is fully assembled and tested. Follow the steps External Power Supply below to verify board operation. Caution: Do not turn on The EV kit is powered by a user-supplied 6V to 36V DC the power supply until all connections are completed. power supply connected between BP1 (INPUT POWER) 1) Verify that the default jumper configurations are as in and GND. Table 1. Programmable Current Limit 2) Connect a voltage meter to the EV kits OUTPUT Jumper JU1 configures the RSETI resistor value that POWER red banana jack and the corresponding is connected to the SETI pin and sets the current black GND banana jack. limit/threshold for the switch (see Table 2). Refer to 3) Connect the DC power supply to the EV kits INPUT the MAX14571/MAX14572/MAX14573 IC data sheet for POWER red banana jack and the corresponding more information. black GND banana jack. 4) Turn on the DC power supply and set it to 24V, then No shunt connected to JU1 or JU2 forces the SETI pin to enable the power-supply output. be unconnected, with the current limit set to 0A. 5) Connect a USB cable from a computer to the USB Overvoltage Lockout (OVLO) connector J1 to enable the device. If a cable is not available, connect a 5V DC power supply between Jumper JU4 (shunted by default) connects the OVLO pin the EV kits TP3 test point and the corresponding to GND and configures the device to have the internal GND test point, TP4. 33V preset OVLO. To configure a user-defined OVLO, 6) Verify that the voltage meter reads approximately 24V. disconnect JU4 and connect a shunt on jumper JU5. This 7) Set the input power supply to 17V. The switch turns allows the device to monitor the IN voltage. Connect a off and the voltmeter reading should slowly decrease resistor on R12 to set the user-defined OVLO threshold. to 0V. Use the following equation to set the OVLO threshold: 8) Set the input power supply to 24V and verify that the voltmeter reads approximately 24V. R11 V Vx 1 + 9) Set the input power supply to 35V. The switch turns OVLO BG R12 off and the voltmeter reading should slowly decrease to 0V. where: R11 is 2.2M V is 1.21 BG External LED2 indicates that an OVLO fault has occurred. Maxim Integrated 2 www.maximintegrated.com =