Power Management ICs Forum Discussions

Hi,

We have some integrated POL converters (IR380xx) connected behind an I2C mux.
We configure the mux to the channel where all the converters are, then we connect the USB005 to a connector to be able to communicate with them, but this is where the problem happens. PowIRCenter scan the entire I2C bus and changes the settings on the mux 😞
How can we force PowIRCenter NOT to scan certain I2C addresses??? (0x70 and 0x71 in our case)???

If there was a setting page in the tool where it's possible to exclude addresses not to be scanned (or disabled) would have been nice... We found where it's possible to exclude some addresses, but the wrong ones.

hi, I want to 35A*3 of the current and i want to use IR3846, i find the External synchronization pin ,but i don't use this pin to parallel connection the IR3846.

hi, I want to 35A*3 of the current and i want to use IR3846, i find the External synchronization pin ,but i don't use this pin to parallel connection the IR3846.

Patch successfully stored to OTP, but…

Read all zeros after power on reset. What's wrong?

no_space_to_program_configuration

Hi,

One of our power supply design for industrial application, we are planning to use  ICC80QSGXUMA1 as a flyback PWM controller. We are planning to use ROHM part BD7684FJ-LBE2 as an alternate for this controller.  We have seen that there is some diffrence in terms of  pin orientation & functions. The maximum operating frequency is seems diffrent like 500KHz for the Infineon part (ICC80QSGXUMA1) and 120KHz for ROHM part (BD7684FJ-LBE2). Whether the maximum frequency considered for the Infineon part is correct ( In graph it is mentioned as 110KHz frequency). Shall I consider this ROHM part as an alternate ? Kindly share your valuable comments.

Hi Nishanth-san,

Thank you for your reply.

We expect that neither iout_oc_fault_limit nor iout_oc_fault_response will operate when disable_digital_ocp=”0”.

Is this correct?

Best regards,
SM

Dear Experts:

There are two supply rails VDD and VIO for the TLE9104SH; the specified operation range in datasheet is:  VDD = 4.5 V to 5.5 V, VIO = 3 V to 5.5 V. It is not clear in datasheet, that if the supply voltage goes beyond the specified range, how would this device behave? For example, if the VDD goes below 4.5V or VIO goes below 3.3V, do you have the definition about the undervoltage behaviour for this device, can you provide 'VDD' and 'VIO' pin undervoltage threshold. Thanks a lot!

Hello. I am currently designing a custom PCB based of the WLC1115 reference schematic. Looking at the BOM, I am noticing a lot of 0603 components. I am wondering if some of these components can be replaced with 0402? Also, I noticed in the design guidelines document that a buck switching frequency of 600kHz is possible. I am also looking to replace the 6.8uH inductor with a smaller one. How is the frequency of the buck stage set? Has anyone tried using a smaller inductor?

Hello. I am wondering if it is possible to configure the WLC1115 to utilize only legacy mode? I am looking to be able to charge a device from a legacy USB-A port. I found the "legacyChargingTable" in main.c and set .enable=1. After flashing my dev board, there is no voltage to the coil.