Click here to ask about the production status of specific part numbers. Evaluates: MAX14919 MAX14919 Evaluation Kit General Description Features The MAX14919 evaluation kit (EV kit) provides a proven Robust Operation with a Wide Range of Input design to evaluate the MAX14919 industrial-grade quad Voltages and Load Conditions low-side switch with 140m (typ) R and 1kV/42 Surge Protection with Up To 1kV IEC61000-4-5 at ON surge protection. Output to Ground LED Indication of Fault and Reverse-Current Detect The MAX14919 EV kit features an isolated power and Conditions signal interface to provide pin-level control of the four low- side switches in the MAX14919. The EV kit also features Multiple Fault-Condition Indications reverse-current detection to prevent damage caused by Reverse-Current Detection miswiring faults at output and return terminals. Undervoltage Lockout on V5 Output Short Detection on RCLIM Control Input The EV kit comes with the MAX14919AUP+ (20 TSSOP- EP, 6.5mm x 6.4mm footprint) device installed. Thermal Shutdown Fault Includes a FET for Output Reverse-Current Protection Inrush Current Control to Allow up to 2x the Maximum Load Current Resistor-Selectable Options to Set Maximum Allowable Load Current +1.8V to +5.5V Wide Logic-Voltage Range +3V to +5.5V Isolated Supply Input Range Proven PCB Layout Fully Assembled and Tested Ordering Information appears at end of data sheet. Block Diagram MAX14919 EV KIT V ISOLA TED POWER IN OPTIONAL FIELD (+3V TO +5V) SUPPLY INPUT MAX258 MAX14919 DIAGNOSTICS DIGITA L ISOLATION OUT1 TO OUT4 QUA D-LOW SIDE ISOLA TED SWITCH OUTP UTS IN1 TO IN4 SWITCH MAX14483 SWITCH CONTROL LOGIC SIDE FIELD SIDE 319-100640 Rev 0 11/20Evaluates: MAX14919 MAX14919 Evaluation Kit positive terminal of the +24V power supply to one end Quick Start of the 10k resistive load. Connect the other end of Required Equipment the resistive load to OUT1 or Terminal 2, Pin 2 on the MAX14919 EV kit field side. +5.5V DC power supply 5) Connect the negative/return terminal of the +24V power supply to Terminal 2, Pin 8 of the EV kit. 1.8V5.5V DC power supply 6) Connect the positive output of the signal generator to +24V DC power supply ISO IN1 or Terminal 1, Pin 5 of the logic side, and the Signal generator return output of the signal generator wire to GNDB Resistive load (10k) (Terminal 1, Pin 9 and Pin 10). Oscilloscope 7) With the output disabled, set the signal generator output at 1kHz square wave with V of 1.8V and HIGH Procedure V of 0V. LOW The EV kit is fully assembled and tested. Follow the steps 8) Connect a scope probe at OUT1 with respect to the below to verify board operation: COM signal. Refer to Table 1: Jumper Positions and Configurations 9) Turn on the +5V and +1.8V power supplies and verify Refer to Table 2: Terminal Description that the green LEDs D3 and D6 are illuminated, indi- cating the V and V supply inputs to MAX14919 1) Verify that all jumpers are in default positions (Table 1). DD L are present. Turn on/enable the +24V power supply. 2) Connect the EV kit V terminal Pin 1 and Pin 2 to the IN 5V output of external DC power. Connect the positive 10) Turn on/enable the signal generator output, which is connected to ISO IN1. output of the power supply at Pin 1 and the negative/ return terminal at Pin 2. Do not turn on the power sup- 11) Using the scope, verify that the MAX14919 OUT1 ply. switch is turned ON and is switching at 1kHz rate. 3) Connect the EV kit Terminal 1, Pin1 to the positive 12) Disable the signal generator output and repeat steps terminal of a +1.8V external DC power supply. Con- 9 through 11 by connecting the control power supply nect the negative/return terminal of the power supply to ISO IN2 to ISO IN4 to evaluate each channel. to Terminal 1, Pin 10. Do not turn on the power supply. 13) Disable the signal generator and all power supplies, 4) With the power supply output disabled, connect the in that order, after evaluation. Table 1. MAX14919 EV Kit Shunt Positions and Settings SHUNT HEADER FUNCTION DESCRIPTION POSITION Separate power supply inputs must be provided at V input at Terminal 1, Pin 1 and V DDB IN terminal. Not Installed* This is useful when V and ISO INx signals are lower than +3V, to allow a standard +1.8V DDB interface signals from a microcontroller to be directly connected to the MAX14919 EV kit. J VDDB Installing this jumper connects the V supply to V . DDB IN 1-2 With shunt installed, the EV kit can be powered from one common supply either at V or IN Terminal 1, Pin 1. This supply must be between 3V and 5.5V. Not Installed* The V supply input of MAX14919 is not connected. DD 1-2 Connects the V supply input of MAX14919 to the unregulated isolated power supply output. DD J1 Connects the V supply input of MAX14919 to the field power supply connection from DD 2-3 Terminal 2, Pin 1. Maxim Integrated 2 www.maximintegrated.com