SLUUBS4A January   2018  – June 2021 TPSM84209

 

  1.   Trademarks
  2. 1Description
  3. 2Getting Started
  4. 3Test Point Descriptions
  5. 4Performance Data
  6. 5Bill of Materials (BOM)
  7. 6Schematic
  8. 7PCB Layout
  9. 8Revision History

3 Test Point Descriptions

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 follows:

Table 3-1 Test Point Descriptions(1)
VIN S+Input voltage monitor. Connect the positive lead of a DVM to this point for measuring efficiency.
VIN S–Input voltage monitor. Connect the negative lead of a DVM to this point for measuring efficiency.
VOUT S+Output voltage monitor. Connect the positive lead of a DVM to this point for measuring efficiency, line regulation, and load regulation.
VOUT S–Output voltage monitor. Connect the negative lead of a DVM to this point for measuring efficiency, line regulation, and load regulation.
AGNDAnalog ground test point.
VIN Scope (J3)Input voltage scope monitor. Connect an oscilloscope to this set of points to measure input ripple voltage.
VOUT Scope (J4)Output voltage scope monitor. Connect an oscilloscope to this set of points to measure output ripple voltage and transient response.
ENEnable test point. Connect this test point to AGND to disable the device. Leave this test point open to enable the device.The UVLO resistor divider (R9 and R10) is connected at this point.
(1) Refer to the TPSM84209 datasheet for absolute maximum ratings associated with above features.