SLUSBO6C JANUARY 2014 – October 2018 TPS40425
PRODUCTION DATA.
When the device operates in multi-phase mode, a current sharing loop as shown in Figure 17 maintains the current balance between phases. All phases share the same comparator voltage (VCOMP). The sensed current in each phase is compared first in a current share block, then to an error current and fed into COMP. The resulting error voltage is compared with the voltage ramp to generate the PWM pulse.