MCP23S17 bypass capacitor (tcrussell)
What value of bypass capacitor on MCP23S17 VDD is recommended? It is being powered from an on-board switching +5V supply (LTC1076). Thanks,Tom..
View ArticleMCP4241 - Spi read command not working (fabio.rocca)
Hello,I'm currently developing a OBP (on borad programming) driver in order to program the non-volatile memory in the device MCP4241 via SPI interface.Now I'm referring to the document DS22059B...
View ArticleCould not read low current on ADM00592 / PAC1921 (dbs)
Hi,we have the requirement to monitor current consumption on an RF device. So we ordered the ADM00592 eval board (see based on a PAC1921 HighSide current sensor. The board is equiped with a 0,005ohm...
View ArticleMCP4728 Address (Serafino Convertini)
Hi to all,I'm trying to use the MCP4728 DAC I'm using a PIC32MX570F512L and I connected the SCL2 to RA2 and SDA2 to RA3. (I checked these connection too many times!!!).When I attemp to sending the...
View ArticleMCP39F511 CT Sensor Interfacing (TS9)
Hi, I have read MCP39F511 Datasheet . The Document and Application Circuit shows interfacing Shunt resistance for measurement for Current. Can somebody suggest me how to interface CT (Different CTs...
View ArticleTranzorb for MCP73831 USB LiIon Charger? (rolfo)
The datasheet of recommends a transzorb on the USB power input (VDD). Section 6.1.1.2. Absolute maximum ratings for VDD is listed as 7.0V plus 4kV human body ESD and 400V machine model ESD. On USB Vbus...
View ArticleMCP1662 Open Load protection (Tobias89)
Hi, I am using MCP1662 to provide a backlight for a 7" TFT LCD (cca 40mA@20V), with 5V on input. However, if I turn on module with my LCD unplugged, the device gets destroyed instantly. So I have a...
View ArticleOdd issues with MCP602 output near positive supply (oliverb)
Device is being used as voltage follower, I want to ensure that an ADC is never driven beyond its supply. I understand that the device is rail-to-rail input and out, so I'm assuming it can be used as a...
View ArticleRealtime automatically updated Temperature values and graph display!...
Hi,I want Real-time automatically updated Temperature values and graph display!.I am using USB to uart convertor using RS232 interface to send values from PIC microcontroller on the Microstick II to...
View ArticleSMD SOT marking (DarioG)
Hello everybody, a quick one:how can I find out what part is a small SOT chip that has VBS5 printed on it?And, more in general, does it exist such a generic lookup table? This one should be a 3.3V...
View ArticleHelp calibrating MCP39F521 (Betarage)
Hello, I am using MCP39F521 with Power Monitor Demonstration Board ADM00686 (9V DC Supply) and Power Monitor Utility (v1.2.0) software. Currently the load I am calibrating is the fan (230V, 0.7A, PF =...
View ArticleMCP23017 (bkmtech)
I wanted to use this device as an LED Driver. Questions: I am not overly familiar with I2C, but why are there associated address lines. Wouldn't all the addressing be available through the I2C bus...
View ArticleMCP2221 read block always reads INSPIREDE (A.Binder)
hi! I'm using MCP2221 in order to Access a SMBus via USB.I can Access the SMBus and I'm able to read most of the smart battery data: I can read all numerical data, e.g. Voltage, Current, etc.But I have...
View Articleusing MCP4012T digipot (ptibruno)
Hi gents I'm not familliar with digital potentiometer, and i'm trying to use the MCP4012 to make an adjustable amplifier.but maybe I missunderstood something, the potentiometer is working fine when i...
View ArticleLooking for ADC which can convert input voltage and/or current (stoyanoff)
Greatings! I`m looking for an ADC interface i can use to converter both current and voltage into digital value!Thanks!..
View ArticleLR645 - High input voltage Linear Regulator (CabanzoJ)
I'm planning to use the Microchip LR645 linear regulator in a non-isolated power supply, datasheet ( states that LR645 is capable to deliver up to 150 mA output current using an external depletion-mode...
View ArticleMCP3911Hard Reset (POR) vs Soft Reset and configuartion changes (DG5MK)
Hi,I am using the MCP3911 as a dual channel ADC in a hand held design which needs to switch the sampling and OSR rate dynamically based on current operating mode.After POR the MCP3911 is configured via...
View ArticleMultiple MCP3914 timing weirdness (jrmymllr)
I use three MCP3914 parts connected to a PIC32, and since my particular PIC only has two SPI peripherals I'm multiplexing by changing what pin is assigned to the Slave Select function and using only...
View ArticleHV7802 (peterverkaik)
Hi, I have a load connected to V+ (not to GND) and was wonderingwhether I could connect the HV7802 as in attached picture.The HV7802 needs at least 8V at its IN terminal. regards peter..
View ArticlePICTAIL analog analysis (musthafafarhan)
HI Sorry to interrupt! but you may helpful for my application. It seems like the people in this discussion are familiar with tc9400 IC. Actually I have a problem with this TC9400IC in...
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