SLVUBP9A December 2020 – May 2021 TPSM41625
Wire-loop test points and scope probe sockets are included for digital voltmeters (DVM) or oscilloscope probes to aid in the evaluation of the device. Table 2-1 describes each test point (1).
| Test Point | Description |
|---|---|
| PVIN S+ | Input voltage monitor. Connect the positive lead of a DVM to this point for measuring efficiency. |
| PVIN S- | Input voltage monitor. Connect the negative lead of a DVM to this point for measuring efficiency. |
| RS+ | Output voltage monitor. Connect the positive lead of a DVM to this point for measuring efficiency, line regulation and load regulation. |
| RS- | Output voltage monitor. Connect the negative lead of a DVM to this point for measuring efficiency, line regulation and load regulation. |
| AGND | Analog ground test point. |
| PGND | Power ground test point. |
| PVIN Scope (J2) | Input voltage scope monitor. Connect an oscilloscope probe to this set of points to measure input ripple voltage. |
| VOUT Scope (J1) | Output voltage scope monitor. Connect an oscilloscope probe to this set of points to measure output ripple voltage and transient response. |
| ENABLE (J10) | Enable test point. This test point can be used to monitor the EN voltage or to connect the EN pin to AGND to disable the device using a jumper wire. Additionally, for ease of use, J10 can be set in the ON position to enable the device or in the OFF position to disable the device. |
| PGOOD | Monitors the power good signal of the device. This is an open drain signal. |
| SYNC | Frequency synchronization pin. Connect the clock signal to the SYNC and AGND test points when synchronizing to an external clock. Additionally, set MODE jumper (J9) to CLK. |
| ISH | Current sharing test point. This test point can be used to monitor the shared current between the two devices. |
| VSH | Voltage sharing test point. This test point can be used to monitor the shared voltage between the two devices. |