Other Parts Discussed in Thread: INA139
Is it possible to attach a INA139 (Hi-Side Current Shunt Monitor) parallel to the feedback resistor of the TPS61158 WLED driver as shown below?
I'd like to use PWM for Dimming and need to measure the resulting current.But I do not know, if the INA139 sees a constant voltage or a rectangle or sawtooth waveform, when applying PWM with approx. 100kHz. I assume, that the additional resistive load from the INA139 does not disturb the regulation of the TPS61158.