Since EAGND can float down to -12.5 V with respect to the ground of the IC (SGND), negative output voltages can be regulated as well, connecting EAGND to the negative rail, and the voltage divider among FB, EAGND and SGND, as shown in Figure 34. Nega...
November 2015 LNK574/576 BYPASS/ MULTI FUNCTION (BP/M) OPEN LOOP PULL UP FEEDBACK (FB) GENERATOR FEEDBACK REF 1.70 V - 1.37 V OVERVOLTAGE PU + PROTECTION + +− 3 V 6.5 V 5.85 V + 4.85 V + 0.9 V AUTO-RESTART COUNTER FAULT RESET JITTER REGULATOR 5.85 V BYPASS PIN UNDERVOLTAGE ...
(ON) - 100 mV, VVS = 0 V fault state VDD startup current limit during startup VDD turnon threshold VDD turnoff threshold Offset to power cycle for long output voltage overshoot VVDD increasing, VSWS - VVDD = 1 V, VVDD = 16.5 V VVDD increasing VVDD decreasing Offset above VVDD(...
This step-by-step calibration tuning according to load condition [5] to achieve an optimized deadtime can be carried out by calculating the required minimum duty-cycle command. However, the drawback comes at the expense that an integrated load current-sensing block is needed and the deadtime ...