MAX17523EVKIT# Analog Devices

Click here to ask about the production status of specific part numbers. Evaluates: MAX17523 MAX17523 Evaluation Kit General Description Quick Start The MAX17523 evaluation kit (EV kit) is a fully assembled Required Equipment and tested circuit board that demonstrates the MAX17523 MAX17523 EV kit adjustable overcurrent and overvoltage protector. The 36V DC power supply EV kit features TVS diode on input and Schottky diode on output. Input power to the EV kit uses a 4.5V to 36V Multimeter input supply. USB-A male to USB-B male cable or The EV kit circuit can be configured to demonstrate the 5V DC power supply devices different current-limit types, adjustable overvoltage, Procedure undervoltage, and current-limit threshold. The EV kit is fully assembled and tested. Follow the steps Features below to verify board operation: 4.5V to 36V Operating Voltage Range 1) Verify that all jumpers are in their default positions. Features TVS Diode and Schottky Diode 2) Connect the USB cable to J1 from a computer or connect a 5V DC power supply to TP3. Evaluates Three Current-Limit Types, Current-Limit Threshold, OVLO, and UVLO 3) Verify that LED1 is on. Proven PCB Layout 4) Connect a 20V DC power supply to IN. Verify that OUT is 20V. Fully Assembled and Tested 5) Increase voltage on the DC power supply and verify Ordering Information appears at end of data sheet. that the OUT voltage goes down and FLAG goes low when input reaches approximately 33V. 6) Decrease voltage on the DC power supply and verify that OUT goes back and FLAG goes high when the input reaches approximately 32V. 19-8511 Rev 1 4/20Evaluates: MAX17523 MAX17523 Evaluation Kit Current-Limit Threshold Detailed Description of Hardware The EV kit features a jumper (JU1) to select current-limit The MAX17523 EV kit is a fully assembled and tested threshold. Install a jumper as shown in Table 2 to change circuit board that demonstrates the MAX17523 1A the current-limit threshold. adjustable overcurrent and overvoltage protector IC in a 16-pin surface-mount TQFN-EP package. Use the following equation to calculate the current limit: Using jumper JU1, the EV kit circuit can be configured to 6100 R (k=) evaluate different current-limit thresholds with a different SETI I (mA) LIM resistor on SETI. Using jumpers JU3JU5, the EV kit circuit UVLO/OVLO Threshold can be configured to evaluate the internal OVLO/UVLO threshold or external threshold using a resistor-divider. Use jumpers JU3JU5 to select UVLO and OVLO threshold. Using jumpers JU14 and JU15, the EV kit circuit can be See Table 3 for jumper settings. configured to evaluate different current-limit types (autoretry, Switch Control latchoff, and continuous). The EV kit also features an LED The EV kit features two jumpers (JU6, JU8) to enable or to indicate the power for logic pins. disable the switch. See Table 4 for jumper settings and Table 5 for switch status. Table 1. LED Indicator Table 2. Current-Limit Threshold (JU1) JUMPER SHUNT POSITION DESCRIPTION LED NAME DESCRIPTION 1-2* Current limit 0.15A LED1 is on when the V /5V supply BUS 3-4 Current limit 0.5A LED1 POWER JU1 for the logic pins is powered 5-6 Current limit 0.98A 7-8 Current limit adjustable *Default position. Table 3. UVLO/OVLO Threshold (JU3JU5) JUMPER SHUNT POSITION DESCRIPTION Installed* UVLO connected to ground. Internal UVLO threshold is selected. JU3 Not installed UVLO not connected to ground. Install JU5 to use external resistors to set UVLO threshold. Installed* OVLO connected to ground. Internal OVLO threshold is selected. JU4 Not installed OVLO not connected to ground. Install JU5 to use external resistors to set OVLO threshold. Installed Use external resistors to set the OVLO/UVLO threshold. JU5 Not installed* Not using external resistors to set the OVLO/UVLO threshold. *Default position. Table 4. Switch Control (JU6, JU8) Table 5. Enable Inputs SHUNT HVEN EN SWITCH STATUS JUMPER DESCRIPTION POSITION 0 0 On HVEN connected to IN 0 1 On 1-2 through 100k. JU6 1 0 Off 2-3* HVEN connected to ground. 1 1 On Installed* EN connected to VBUS. JU8 Not EN connected to ground installed through 100k. *Default position. Maxim Integrated 2 www.maximintegrated.com