Power Management ICs Forum Discussions
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WWD(Window Watchdog)를 비활성화한 후 시스템은 일반 모드로 들어가고 WDI 파형은 500Hz(GPIO 토글 1ms 작업 사용)에서 생성됩니다. 그러나 일반 모드에서 WWD를 활성화하면 시스템이 Init 모드로 전환됩니다. Init 모드로 전환한 후 SYSSF(0x1D) 레지스터를 확인하면 WWDE 오류 플래그로 인해 전환이 발생했음을 나타냅니다. WWDE 오류 플래그가 설정되는 것을 어떻게 방지할 수 있습니까?
Show LessI am new to the PowIR Center Build Tool.
I am programming this tool for Eval_IRPS5401-25A Evk board, I have done some configurations and written into the OTP's (User Section) . Assume I have used 7 OTP's and now I want to use 3rd OTP(not again giving new configuration,I just want to use the configuration in 3rd OTP) and write into register(output).
Is it possible to enable that particularly OTP and write into the board. If it is possible could you guide me how to do it.
Thanks & Regards
Navin
Show LessAfter the TLE92464 is reset, the FAULTN pin outputs a high level, but it changes to a low level after approximately 2 milliseconds. Why does this problem occur? this is c code :
RESN_HIGH();
EN_HIGH();
vTaskDelay(2);
RESN_LOW();
vTaskDelay(1);
RESN_HIGH();
EN_HIGH();
vTaskDelay(5);
Show Less
Hi all,
We confirmed that the protection function works by changing the overvoltage setting value through PMBus in steady state.
So I have a question.
Please tell me how to actually operate the overvoltage without changing the overvoltage setting value through PMBus in steady state.
Best regards,
MS
Dear experts.
Is it possible to get the simulation file about XDPS2201, I would like to see the effect on Cr when I change Cr's value
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Show LessTLE9263-3BQX Currently customers do voltage drop test, in Vs undervoltage will cause Vcc1 undervoltage protection, resulting in MCU restart, FO1 has been a continuous high level output. But after entering the protection state, when the fault is lifted or the product is re-powered, the SBC is in a locked state, and the Test pin must be grounded to resume operation. Please also help me to see exactly how to configure the SBC to automatically resume working when the fault disappears, for example, the datasheet mentions to clear the VCC1_UV register.
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Show LessHi team,
I am writing to inquire about the LLC controller for specific requirements of our system.
We are currently using UCC25660 in a half-bridge LLC configuration with a fixed input voltage of 360VDC and an output voltage of 600VDC. The capacitance of the secondary winding of the transformer is estimated to be within the range of 1nF to 2nF. Given the transformer ratio of 1:4, this capacitance is reflected on the primary side, magnified by N^2 times (16 times). In this condition, under no load, mid-load, and light-load, the capacitance appears to dominate rather than the resistive load.
In the UCC25660 datasheet, it is stated that "In the event of a persistent ZCS condition, the controller ceases switching action and moves to the fault state. A configurable time-out is used to declare a persistent ZCS fault condition."
However, our specific requirement is to avoid entering the fault condition altogether. Instead, we aim for the controller to tolerate persistent ZCS conditions for an indefinite number of cycles.
Could you please suggest any controllers which satisfy our requirement?
Regards,
Manimuthu
I am new to the PowIR Build tool, I need to understand how to set the output voltage for IRPS5401, I have done required configuration based on my requirement when I create a new device and I have all input voltages, output voltages, etc. for SWA, SWB, SWC, SWD, LDO I have created a pcd file, but I want desired output to be written into the register not into the OTP .
Before writing/testing with config file I want to understand the tool, with default values when i2c is detected how to write value into the register and read.
If someone could point me the procedure of writing into the register it would be helpful for me to understand the tool by providing any source code or detailed pdf (Guide)
Thanks & Regards
Muvva Navin Krishna
Show LessHello everyone ,
I want to use the IRPS5401 PMIC into one of my project to get multiple output rails of different voltages . The input power supply available for IRPS5401 PMIC is only 5V , but according to its data sheet the V supply pin needs 6V- 14V for , is there any way I could give it only 5V and run the IC efficiently or what if I put it NC ?
Hoping to get some real quick responses.
Show LessHi all,
We are evaluating EVAL_TDA38740_3.3VOUT.
Since the transient response is not shown in the User manual for TDA38740 evaluation board, we measured it on the demo board.
Please check the attached file for the measurement circuit, register settings, and measurement conditions.
Is the transient response at 3.3V reasonable?
Please let us know how we can improve it further.
We changed the output voltage to 0.5V, 4.6V by VOUT_COMMAND.
Please let us know if there is any way to improve the transient response.
The parts on the board remain unchanged.
Best regards,
MS
Power Management ICs
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