I have a PNP BJT and an LED driver (current sink, theoretically 20 mA and max 3.3 V). The LED driver is connected through an LED to the base of the BJT.
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![Basic Offline LED Driver [13]. | Download Scientific Diagram](https://www.researchgate.net/publication/352865578/figure/fig1/AS:1040595598454784@1625108732266/Basic-Offline-LED-Driver-13.jpg "Basic Offline LED Driver [13]. | Download Scientific Diagram")
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