Although the calculated value is ~70mOhm, a 62mOhm resistor is used to ensure the circuit doesn't go into current limit before 1A.
The larger 70mOhm does not take into account noise spikes which could…
NDRV pulse magnitude can be increased by connecting an external supply at the INTVCC pin. When an external source >=8V is connected to INTVCC, internal LDO turns off and the MAX17690 will be supplied from…
The ringing caused during the DCM period of the flyback caused due to leakage energy of inductance with capacitance of the MOSFET will cause voltage spikes and oscillations at LX node.
A snubber resistor…
MAX17690 is a no-opto DCM flyback converter. There is no restriction on the output voltage capability of this device as long as the external components are rated accordingly.
Normal range of recommended external source voltage is between 8V and 16V. However, the maximum external source voltage should be always higher than or equal to the minimum input voltage. This is to ensure…
