Topologie | Sperrwandler |
Eingangsspannung | 18-60 V |
Ausgang 1 | 12 V / 0.5 A |
The MAX17690 implements an innovative algorithm toaccurately determine the output voltage by sensing thereflected voltage across the primary winding during theflyback time interval. By sampling and regulating thisreflected voltage when the secondary current is close tozero, the effects of secondary-side DC losses in the transformerwinding, the PCB tracks, and the rectifying diodeon output voltage regulation can be minimized.The MAX17690 also compensates for the negative temperaturecoefficient of the rectifying diode.
4.5V to 60V Input Voltage RangeProgrammable Switching Frequency from 50kHz to 250kHzProgrammable Input Enable/UVLO FeatureProgrammable Input Overvoltage ProtectionAdjustable Soft-Start2A/4A Peak Source/Sink Gate Drive CapabilityHiccup Mode Short-Circuit ProtectionFast Cycle-by-Cycle Peak Current LimitThermal Shutdown ProtectionSpace-Saving, 16-Pin, 3mm x 3mm TQFN Package-40°C to +125°C Operating Temperature Range