SNVAA80 July 2024 LM5177
The previous results showed how smoothly the storage voltage is regulated during constant voltage charging using the MODE pin controls. This smooth operation makes these features an excellent choice for any application to design. Here, TLV431 is used as a shunt regulator, with a lower operating current and reference voltage, to boost the efficiency and reduce the supply current of the designed controllers
Additionally, different levels of hysteresis can be introduced to the MODE pin controller. This can be accomplished by adding a small parallel current source to the voltage divider circuit or by placing a small capacitor between the gate and source of the MOSFET. These adjustments help fine-tune the performance of the controller and can further increase the efficiency.