Click here to ask an associate for production status of specific part numbers. Evaluates: MAX16193 MAX16193 Evaluation Kit General Description Quick Start The MAX16193 evaluation kit (EV kit) is a fully tested and Required Equipment assembled circuit that demonstrates the capabilities of the MAX16193 EV kit MAX16193, a dual-channel, low voltage window-detector 5V/100mA DC power supply supervisor circuit. The MAX16193 EV kit is designed to facilitate the evaluation of the MAX16193s 0.3% over- 1V/50mA high-precision DC power supply voltage/undervoltage fault detection capability. A jumper, 5V/50mA high-precision DC power supply JP1, provides the option to connect the reset outputs Two digital multimeters (DMM1 and DMM2) pullup resistor to a voltage other than VDD. Refer to the MAX16193 IC datasheet for absolute maximum voltage Four-channel oscilloscope ratings voltage on the reset output. The MAX16193 EV Procedure kit is available in a 1.5 x 1.5 PCB and operates over the The EV kit is fully assembled and tested. Follow the steps automotive temperature range of -40C to +125C. to verify board operation. Benefits and Features Caution: Do not turn on power supply until all con- 0.3% Threshold Accuracy nections are completed. 0.9V/3.28V Nominal Threshold 1) Connect the positive terminal of the 5V/100mA pow- er supply to VDD pad. Connect the ground terminal 4%/3% UV/OV Monitoring Range of the power supply to GND pad. 10ms Reset Timeout for RST1 and RST2 Signal 2) Connect the positive terminal of the 1V/50mA DC Two Reset Output Pull-Up Voltage Options power supply to VMON1 pad. Connect the ground Proven 1.5 x 1.5 2-Layer 2oz Copper PCB Layout terminal of the power supply to GND pad. Demonstrates Compact Solution Size 3) Connect the positive terminal of the 5V/50mA DC power supply to VMON2 pad. Connect the ground Fully Assembled and Tested terminal of the power supply to GND pad. 4) Connect the positive terminal of the DMM1 to MAX16193 EV Kit Files VMON1 TP test point and the negative terminal of FILE DECRIPTION the DMM1 to GND. EVKIT 5) Connect the positive terminal of the DMM2 to max16193 evkit p1 Schematic schematic VMON2 TP test point and the negative terminal of the DMM2 to GND. EVKIT PCB MAX16193 EVKIT P1 MARKETING PCB LAYOUT 6) Ensure that jumper JP1 is in its default setting, see Table 1 for more detail. EVKIT Bill of build bom max16193 evkit p1 Materials 7) Connect oscilloscope channel 1 to IN1 test point and channel 2 to RST1 test point. max16193 evkit p1 odb EVKIT ODB 8) Connect oscilloscope channel 3 to IN2 test point and channel 4 to RST2 test point. 9) Turn on the 5V/100mA power supply and slowly Ordering Information appears at end of data sheet. increase its output voltage to 5V. 10) Turn on the 1V/50mA DC power supply and slowly increase its output voltage to 0.9V. 319-100881 Rev 0 1/22 2022 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. One Analog Way, Wilmington, MA 01887 U.S.A. Tel: 781.329.4700 2022 Analog Devices, Inc. All rights reserved.MAX16193 Evaluation Kit Evaluates: MAX16193 11) Turn on the 5V/50mA DC power supply and slowly Calculating OV/UV Threshold Voltage increase its output voltage to 3.28V. The MAX16193 monitors a system supply voltage for 12) Verify that the reading on DMM1 and DMM2 are undervoltage/overvoltage window-threshold. Depending 0.9V and 3.28V, respectively. on the system supply tolerance requirement, the under- voltage/overvoltage thresholds can be factory-trimmed 13) Increase the 1V/50mA DC power supply voltage from 2% to 5% with respect to the selected nominal from 0.9V to 0.939V in approximately 1mV steps and input threshold voltage. The following is a detailed calcu- verify that the RST1 signal on the oscilloscope pulls lation of how to determine the undervoltage/overvoltage low around VIN1s V value. OVTH threshold levels with 0.3% threshold accuracy. 14) Decrease the 1V/50mA DC power supply voltage V = 0.9V from 0.9V to 0.861V in approximately 1mV steps and IN NOM verify that the RST1 signal on the oscilloscope pulls TOL = 4% low around VIN1s V value. UVTH V = V (1 4%) = 0.9V * (1 0.04) = 0.864V UVTH IN NOM 15) Increase the 5V/50mA DC power supply voltage from V = V (1 + 4%) = 0.9V * (1 + 0.04) = 0.936V OVTH IN NOM 3.28V to 3.389V in approximately 1mV steps and Where V is the selected nominal input threshold verify that RST2 signal on the oscilloscope pulls low IN NOM voltage, TOL is the input tolerance, V is undervolt- around VIN2s V value. UVTH OVTH age threshold voltage, and V is the overvoltage OVTH 16) Decrease the 5V/50mA DC power supply voltage threshold voltage. from 3.28V to 3.171V in approximately 1mV steps The MAX16193 monitors the supply voltage with 0.3% and verify that the RST2 signal on the oscilloscope accuracy over the operating temperature and supply pulls low around VIN2s V value. UVTH range. The accuracy range is shown as follows: 17) The EV kit is ready for further testing. V = V (1 - 4% 0.3%) UVTH A IN NOM V = V (1 + 4% 0.3%) OVTH A IN NOM Where V is the undervoltage threshold accu- UVTH A racy range and V is the overvoltage threshold OVTH A accuracy. Table 1. Jumper, JP1, settings SHUNT JUMPER DESCRIPTION POSITION RST1 and RST2 are pulled 1-2* up to VDD. JP1 RST1 and RST2 are pulled 2-3 up to VEXT. *Default Jumper Position. Figure 1. Undervoltage/Overvoltage Threshold Accuracy Analog Devices 2 www.analog.com