If there is a configuration in GUI to select whether to use VID mode. If VID is not used, its signal will be ignored.
There must be fault happened and triggered UCD9244 to shut down. You can connect GUI to UCD9244 and find the fault status and fault…
Part Number: UCD74120 Other Parts Discussed in Thread: UCD9244 , UCD74120 design driven by UCD9244. UCD9244 says the current on the output is about 3.8 amps no matter what the actual load is. Design was done with Fusion Digital Power Designer 1.9.78 …
Other Parts Discussed in Thread: UCD9244 , UCD74120 I use these two chips to generate a freescale T2080 VDD power.
Input voltage is 12V and ouput voltage is 1.025V.
When the switching frequency is above 1000khz,sometimes there will be no ouput voltage…
Other Parts Discussed in Thread: UCD9244 Accroding to the UCD9244 Datasheet,"When V33D is greater than VRESET, the device initiates an internal startup
sequence. At the end of the startup sequence, the device begins normal operation, as defined by the…
According to the datasheet,
"Minimum V33 slew rate between 2.3V and 2.9V" is 0.25V/ms.
My question:
My design is V33D = V33DIO = 3.3V.
If V33D slew < 0.25V/ms,what will happen?
The V33D reset threhold is 2.3V,
the pullup resistor to V33DIO…
Other Parts Discussed in Thread: UCD9222 , UCD9244 I am using UCD9222 & UCD9244 for my module i have programmed with my file.Actually i need to change the power output file with another configuration.
My question is can i reprogram the Power controller…
Hi Luke,
The 3.3V rail on the board is absolutely stable, reads 3.338V and is not affected by load currents. Anyways, I rearranged the components on the board, so that the analog side of UCD9244 gets as far from the power stages as possible, also added…
Other Parts Discussed in Thread: UCD9244 , UCD7242 Hi,
We are using UCD9244 PWM contrller with two UCD7242 power driver for generating the voltages 1V,1.2,3.3V & 1.8V . We have programmed the PWM controller and the voltages are generated and worked…
There should not be beads on the loop.
I unmounted the beads and soldered with soldering tin directly and then things went well.
Thanks Luke Lu for the suggestion.
Regards,
Feng
