SLAU949 September 2024
This section describes the setup and operation of the EVM for parameter performance evaluation. Figure 2-1 shows a typical test configuration of the ISOM-EVM.
ISOM811x Basic EVM Operation
ISOM871x Basic EVM Operation
ISOM86xx Basic EVM Operation
The simplest EVM setup is to test using a 5V input with and a 5VSRC. The input resistor is sized to accommodate up to 24V logic inputs. ISOM-EVM has do not populate (DNP) footprints for components which can be populated to apply different test conditions to the device. Section 2.1 lists and describes possible test configurations that can be achieved by modifying different components on the EVM.
Component | Description |
---|---|
R3, R5, R21 | R3, R5, and R21 are sized for 5V - 24V operation. If a larger supply or smaller value is needed, then select a resistor that provides the desired IF current to the anode. |
R4, R6, R25 | R4, R6, and R25 are 0Ω resistors, which allows for configurable EVM test conditions. |
J1, J2, J11 | Shunt J1, J2, or J11 to use the output as a high side output (emitter pin). Never shunt J1 and J9, J2 and J10, or J11 and J12 at the same time. |
J9, J10, J12 | Shunt J9, J10, J12 to use the output as a low side output (collector pin). Never shunt J1 and J9, J2 and J10, or J11 and J12 at the same time. |
C3, C4, C12 | C3, C4, and C12 can be used to add capacitance to the input diode. |
R9 | If a pullup resistor is desired, populate R9. |
R10 , C10 | One or more of these components can be added or modified to test the device with additional output impeadance, resistive or capacitive loads. |