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TN6725A-D26Z Datasheet Voltage Sense Inputs (IVNl,IVN2,IVN3) The mains voltage are measured by means ofa resistordivider and the divided voltage are converted to a current. The current into the voltage sense inputs (virtual ground) should be set to 14}JARMS at rated voltage conditions. The individual mains voltages are divided down t0 14VRMS per phase. The resistors R12, R13 and R14 (figure 8) set the current for the voltage sense inputs. The voltage sense inputs saturate at an input current of+25uA peak. TN6725A-D26Z Price
TN6725A-D26Z on stock
The capacitor value and type is based on cost, availability, size and temperature constraints. A tantalum or aluminum electrolytic capacitor is best, since a film or ceramic capaci- tor witi< almost zero ESR, can cause instability. The alu- minum electrolytic capacitor is the least expensive solu- tion. However, when the circuit operates at low tempera- tures, both the value and ESR of the capacitor will vary considerably. The capacitor manufacturers data sheet pro- vides this information. |
