Hi,
Please find the application circuit of BQ24401. The IC controls the switch of a buck converter (current control mode).
In this i am not able to understand the buck stage. To be precise , i am not able to understand the role of transistor Q2 , diode D5 and capacitor C9. Also , they have put a hysteretic controller to add hysteresis to the current sense signal (Capacitor C7). Please help me. Thanks in advance
Please find the application circuit of BQ24401. The IC controls the switch of a buck converter (current control mode).
In this i am not able to understand the buck stage. To be precise , i am not able to understand the role of transistor Q2 , diode D5 and capacitor C9. Also , they have put a hysteretic controller to add hysteresis to the current sense signal (Capacitor C7). Please help me. Thanks in advance