SBOS786B April 2016 – April 2022 INA301-Q1
PRODUCTION DATA
Another method for setting the limit voltage is to connect the LIMIT pin to a programmable digital-to-analog converter (DAC) or other external voltage source. The benefit of this method is the ability to adjust the current-limit threshold to account for different threshold voltages that are used for different system operating conditions. For example, this method can be used in a system that has one current-limit threshold level that must be monitored during a power-up sequence, but different threshold levels that must be monitored during other system operating modes.
In Table 7-3, VTRIP represents the overcurrent threshold that the device is programmed to monitor, and VSOURCE is the programmed signal set to detect the VTRIP level.
PARAMETER | EQUATION | |
---|---|---|
VTRIP | VOUT at the desired current trip value | ILOAD × RSENSE × Gain |
VSOURCE | Threshold limit voltage | VSOURCE = VTRIP |