Power Management ICs Forum Discussions
I'm looking for an example set of recommended values for inductor and capacitors on the input side of the SMPS when not using boost on the TLE9278 Multican SBCs.
Page 119, Section 14.1 listed a set of example parts that could be used. Unlike the other products in the DC/DC range, the TLE9278's example ONLY show examples with SMPS Boost. The difference is that the L1 / Inductor 1 / input to the Buck circuit is shown as 22-47uH, but that other parts when not using boost recommend a 2.2uH.
The size difference in a 22-47uH inductor is minimum 3mm x 3mm. As where a 2.2uH inductor goes to 0402 and 0603 sized packages. Likewise, recommendations on the capacitors would be helpful.
I suspect it could be closer to the 2.2uH that the other SBC SMPS buck circuits call for. But I'd like a little direction before testing.Show Less
Except the inductor current waveform none-linear rise up, Is there any other way to judgement inductor saturation?
can you share some case about inductor saturation relative voltage waveform? thanks!
I am looking at using the TLE92464ED solenoid driver IC in my current project. I've read through the the datasheet and see that there a lot of configuration items. Do you have any application notes or example code that can help me design with this chip? My application will use the TLE92464ED to drive two solenoids with the channels configured in parallel mode to handle the required solenoid current. I need to implement an "actuate and hold" type solenoid drive for efficiency and minimal heating of the solenoid. Any information is greatly appreciated.Show Less
並下載 PowIRCenter Software
Running PowIRCenter 程式時,畫面顯示需求 license file,請問可以提供給予我嗎？
I use the TLE9278 to test sleep and wakeup function. When I send the cmd to sleep, VEXT and VCC is OFF, 3.3V and 5v is OFF.
I set WK_CTRL_1 to WAKEUP_ENABLED, WK_PUPD_CTRL to PULL_DOWN_SELECTED, then I test it ,
I give the high level to WK pin, and I hope TLE9278 will be waked up, and it could supply 3.3V and 5V .
But it is waked up first one or two times，then it could not be waked up again . The
3.3V and 5V would not be outputed .
I want to use Static Sense,will it cause the problem? What should I do to solve the problem or make it work?
I was wondering if FB-LLC (FullBridge LLC) or PSFB (Phase Shift FullBridge) is a better suited topology for a up 1.5kW converter (DC-bus 400V to DC-out 100V). The important part is that it should work over a wide load range (10W to 1.5W).
For my understanding is there the PSFB a better choice, but it radiates more EMI. The FB-LLC, which has lower EMI, is more complicated to develop for a wide load range. Based on what I've read I would say that the efficiency is about equal, when having a wide load range.
I'd like to hear your comments regarding the better choice.Show Less
I'm trying to readout 3x IRPS54012 devices located on our custom PCB. For the Switchers all goes well ( page 0 -> page 3 ) Except for the LDO readouts I'm getting different results.
Following is a log of all the outputs of the onboard Infineon devices made by a python script.
Test 1 : Date : Mon Feb 24 13:23:38 UTC 2020
Test 2 : U1 : irps54012 : VD+0.85VDC : Page 0 : 0.8593 V ( expected: 0.8500 V )
Test 3 : U1 : irps54012 : VD+1.85VDC : Page 1 : 1.8007 V ( expected: 1.8500 V )
Test 4 : U1 : irps54012 : VD+0.9VDC : Page 2 : 0.8984 V ( expected: 0.9000 V )
Test 5 : U1 : irps54012 : VD+1.2VDC : Page 3 : 1.1991 V ( expected: 1.2000 V )
Test 6 : U1 : irps54012 : VD+0.85VDC : Page 4 : 1.6874 V ( expected: 0.8500 V )
Test 7 : U3 : irps54012 : VD+2.5VDC : Page 0 : 2.5037 V ( expected: 2.5000 V )
Test 8 : U3 : irps54012 : VD+1.2VDC : Page 1 : 1.2030 V ( expected: 1.2000 V )
Test 9 : U3 : irps54012 : VD+1.8VDC : Page 2 : 1.7968 V ( expected: 1.8000 V )
Test 10 : U3 : irps54012 : VD+1.8VDC : Page 3 : 1.8007 V ( expected: 1.8000 V )
Test 11 : U3 : irps54012 : VD+1.2DCL : Page 4 : 2.4217 V ( expected: 1.2000 V )
Test 12 : U2 : irps54012 : VD+3.3VDC : Page 0 : 3.3045 V ( expected: 3.3000 V )
Test 13 : U2 : irps54012 : VD+3.3VDC : Page 1 : 3.3045 V ( expected: 3.3000 V )
Test 14 : U2 : irps54012 : VADJ : Page 2 : 1.7968 V ( expected: 1.8000 V )
Test 15 : U2 : irps54012 : VD+5VDC : Page 3 : 4.9997 V ( expected: 5.0000 V )
Test 16 : U2 : irps54012 : VD+3.3VDCL : Page 4 : 6.6090 V ( expected: 3.3000 V )
You can cleary see all the LDO's on page 4 are calculated wrongly. The real voltage on the PCB is correct.
The mantissa for all the switchers are set to 0x18 ( reg 0x20 ) which represents a mantissa of ( 2^-8 ) while I suspect the mantissa for the LDO's should have been 0x17, which gives a mantissa of ( 2^-9 )
The mantissa of the LDO's are set to 0x18 so the actual calculation seems done right according the LDO register settings.
$ sudo i2cget -y 1 0x43 0x20
$ sudo i2cdump -y 1 0x43
No size specified (using byte-data access)
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 04 80 17 d5 XX 00 XX XX XX XX XX XX XX XX XX XX ????X.XXXXXXXXXX
10: 00 XX 97 XX XX fc c3 XX XX b0 XX XX XX XX XX XX .X?XX??XX?XXXXXX
20: 18 da 00 XX b3 f1 c3 04 XX 08 XX XX XX XX XX XX ??.X????X?XXXXXX
30: XX XX XX 20 XX 28 20 XX XX 00 XX XX XX XX XX XX XXX X( XX.XXXXXX
40: 40 80 0d a6 73 80 d0 c0 XX XX c0 XX XX XX XX 78 @???s???XX?XXXXx
50: 80 64 XX XX XX e0 80 XX 90 XX XX XX XX XX c0 a6 ?dXXX??X?XXXXX??
60: 00 08 0c 80 3c 08 XX XX XX XX XX XX XX XX XX XX .???70: XX XX XX XX XX XX XX XX 02 02 00 00 00 00 82 XX XXXXXXXX??....?X
80: XX XX XX XX XX XX XX XX 79 02 XX d9 18 25 XX XX XXXXXXXXy?X??%XX
90: XX XX XX XX XX XX 0a 08 22 03 04 04 XX XX XX XX XXXXXX??"???XXXX
a0: XX XX XX XX XX XX XX XX XX XX XX XX XX 01 01 XX XXXXXXXXXXXXX??X
b0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
c0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
d0: XX XX XX XX XX XX 10 XX 00 01 XX de 1a 25 XX XX XXXXXX?X.?X??%XX
e0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
f0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
I'm clearly missing something here. Does someone have an idea what i'm doing wrong?
Thanks for helping me. Show Less
Has someone seen following behavior:
- project board starts ok and I'm able to send the TLF in shutdown state(standby regulator is enabled)
- afterwards I cannot restart the board anymore, not even with a power-on
What I see with the power on sequence is that any output of TLF(Quc, Qco, Qst, etc.) is on for few us then they are off, hence I can not connect to the uc.
Regards. Show Less
I want to use the ICE3PCS01 in an aviation project.
Is it possibe to adapt it to 400 - 800Hz wide frequency net?
Recently we have purchased the infineon Technologies 3300W 54V bi-directional phase-shift full-bridge (PSFB) evaluation board EVAL_3K3W_BIDI_PSFB.
But there is some problem with the board and I don't know how to solve it
Load - BLDC motor 48 volt
Problem - The board output voltage is adjustable from 40 volt to 60 volt through GUI and in my application i require 48 volt so i set the output voltage 48 volt through GUI. In the no Load condition the board is giving the required output voltage but when i am connecting the load to board the output voltage suddenly drops to zero and converter shuts down and In the GUI it shows UV/OV protection.
I have checked the load and there is no short circuit in the load.
So please connect me to the designer of the board and help me to solve this problem and if something needs to be changed in the board then please give me support to do it.
Waiting for your response
Thanks and regards
Ashwani GautamShow Less
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