ZHCS360F July 2012 – November 2020 TPS54020
PRODUCTION DATA
The device implements current mode control which uses the COMP pin voltage to control the turnoff of the high-side MOSFET and the turnon of the low-side MOSFET on a cycle-by-cycle basis. Each cycle, the switch current and the current reference generated by the COMP pin voltage are compared. The high-side switch is turned off when the peak switch current intersects the current reference. High-side overcurrent protection is achieved by clamping the current reference.