SLPS764B September 2024 – December 2025 RES60A-Q1
PRODUCTION DATA
HIPOT, or high potential testing, is commonly used to screen out early failing devices to be used in high-voltage applications. This testing is intended to identify any devices on the left side of the so-called “bathtub curve” of reliability. For detailed discussion of the bathtub curve model, refer to TI Reliability Terminology.
Figure 7-6 Bathtub curve of
reliabilityThe production test program of the RES60A-Q1 includes an over-voltage stress test, or OVST, that is performed on every unit. This OVST is similar to HIPOT in many respects, but has a shorter test duration. Stresses of +2700Vdc and –2700Vdc are applied to the device for 100ms each. A full suite of parametric tests are performed both before and after the OVST, and the results compared to identify any devices with unacceptable parametric shifts due to the OVST. This OVST reduces the risk of early-fail units, without accelerating device aging or damaging good units.