SLVUC02B September 2020 – May 2021 TPSM41615 , TPSM41625
Wire-loop test points and two scope probe test points have been provided as convenient connection points for digital voltmeters (DVM) or oscilloscope probes to aid in the evaluation of the device. A description of each test point(1) follows:
| 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 (J7) | Input voltage scope monitor. Connect an oscilloscope probe to this set of points to measure input ripple voltage. |
| VOUT Scope (J8) | Output voltage scope monitor. Connect an oscilloscope probe to this set of points to measure output ripple voltage and transient response. |
| ENABLE (J13) | 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, J13 can be set in the ON position to enable the device or in the OFF position to disable the device. |
| POWER GOOD | 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. |