SLVUBX8B October 2020 – December 2021 TPS2661
- Trademarks
- 1Introduction
- 2Description
- 3Schematic
- 4General Configurations
-
5Test Setup and Procedures
- 5.1 Overload Protection Test
- 5.2 Output Short-Circuit Test
- 5.3 Input Undervoltage Protection Test
- 5.4 Output Undervoltage Protection Test
- 5.5 Output Overvoltage Protection Test
- 5.6 TPS26612 Overload Protection Test
- 5.7 Current Limiting for VIN < –Vs
- 5.8 Surge Protection Test (Current Input, CH1)
- 5.9 Surge Protection Test (Analog Output, CH2)
- 6EVAL Board Assembly Drawings and Layout Guidelines
- 7Bill Of Materials (BoM)
- 8Revision History
5.3 Input Undervoltage Protection Test
Use the following instructions to perform input undervoltage protection test:
-
Set dual polarity regulated power supply to +15 V : 0 V : –15 V and apply the power at connector J2
-
OPEN jumper J6
-
Connect a load of 3 kΩ between I_OUT_1 and AGND_1 at connector J3
-
Apply a voltage of 0 V at I_IN_1 and gradually decrease the voltage to –15.4 V to trigger the input undervoltage fault
-
Observe the waveforms using an oscilloscope
Figure 5-7 Input Undervoltage Protection Response of TPS26610 Device