MCP73837 burning issue during charge (albertini.filippo)
dear all,some years ago I designed a multiple slot battery charger for Li-Ion battery powered byt wall supply: the Vusb is not connected. Today lot of chargers have the following issue: some of them...
View ArticlePAC1934 Auto increment. (zwilcox)
Hi All.I'm attempting to read all the VBUS registers for all channels at once using the auto increment feature.I'm able to read all VBUS channels through different transactions just fine.IE i send the...
View Article[PAC1934] Auto-increment issues? (zwilcox)
Hi all.I'm trying to use the auto increment to read data on the PAC1934.I'm able to use this feature successfully to read the product ID and the manufacturer ID. Now I'm trying to do it with the VBUS1,...
View ArticleIC for Traffic Light Led Driver (Nik_Las)
Hi to all Forum!!!This is my first post in your forum so i don't know exactly if this is the right place to post....Below there is a mail i want to sent at microchip technical support but i can't find...
View ArticleMCP3561 gain not working (mrguen)
Hello, I am testing the MCP3561 24 bits ADC. The gain should be programmable 0.33/1/2/4/8/16 . I used a 1 KHz signal, sampled at OSR = 64 i.e. 16 MHz (external) clock / 4 / 64 = 62.5 KHz What I...
View ArticleMCP3903 SPI (Luke)
Hi, I hope this is the right place to post this. If it belongs somewhere else I can move it. I am have a PCB with 3 MCP3903 AFEs which are connected to a CC3200SF Microcontroller. I believe that I have...
View ArticleMCP2518FD at full bus load (xorly)
Hi,has anyone done any benchmarks of maximal throughput of MCP2518DF or MCP2517FD? I'd like to use MCP2518FD in CAN FD probe and I have to expect the worst (100% bus load). Usually, I wouldn't expect...
View ArticleMCP4651 Digital Pot I2C Signals Leakage (bbawkon)
Good day, I'm using the MCP4651 Dual Digital Pot inside the feedback loop of an Op-Amp to correct gain error. The circuit works wonderfully. The one issue I'm having, however, is that the I2C Signals...
View ArticlePac1710 mode switch issue (aescov)
Hi We are using the PAC1710 in an application were we want to dynamically change the run mode between standby and continuous. It works as expected in continuous mode out of reset, and we are able to...
View ArticlePac1710 mode switch issue (aescov)
Hi We are using the PAC1710 in an application were we want to dynamically change the run mode between standby and contiguous. It works as expected in continuous mode out of reset, and we are able to...
View ArticleUNregulated Converter with MIC2171? (bayviewboom)
HelloCan this part be used as a NON-regulated isolated converter?MIC2171 We’d like to simplify and reduce parts-count, if possible. We DON’T need tight voltage-regulation. Our requirement is:Input: 12V...
View ArticleWhat's status of MIC2171 and other Micrel chips? (bayviewboom)
Is MIC2171 still in production? Where's the best place to get support?thx..
View ArticleMCP3913 continuous sampling issue after reset (without power up) (pf26)
We are using MCP3913 in a power metering application - It works great after power up, but we need to manage power failure events, and sometimes restart the MCP3913 without a clean power up of the whole...
View ArticleMCP3464 ADC output issues (AndyH)
I'm working on a product with an external MCP3464 ADC. I can communicate with the device via SPI, and am able to read and write registers with no problems. However, I just can't get the device to run...
View ArticleNeed help in picking a proper DC/DC converter. (SWLab)
Microchip boasts a variety of power-management parts, but no specific Forum section for them. This might not be the right Forum, but here goes anyway and I hope someone can help. I have need for a...
View ArticleMCP39F521 Gain Problem (womacka)
Hello, I have an technical question to more experienced users. I integrated the MCP39F521 Power Meter IC into one of my devices. The sensing resistors are the same as on the ADM00686 development board....
View Articleusb2240 circuit review (waqasqammar)
Hi there!I have made a circuit of usb2240 by seeing the development board. But instead of CRD_PWR pin, I used direct 3.3v because I wanted to use this circuit with MCU directly as well as appeared as a...
View ArticleMCP23017: question about INTA and INTB pins (GeVaCo)
When I don't use the interrupt pins INTA and/or INTB of the MCP23017, can I leave those pins floating?When I do use the interrupt pins INTA and/or INTB of the MCP23017, do I have to use pull-up...
View ArticleMCP9601 Open Circuit(OC) bit status varying from set to clear with each read...
We are working on MCP9601 IC. We are following the circuit for SC/OC detection as per datasheet for MCP9601. We are trying to poll the status register in loop to check the Open circuit(OC) Flag bit....
View ArticleKSZ9477S working temperature (shelaev_den)
Hello!We are using the KSZ9477S (active ports 1, 2 and 7 as SFP, setup by SPI). The working temperature is about 60C. How to reduce the temperature?We found in KSZ9477S Silicon Errata and Data Sheet...
View Article