USB2514B USB 2.0 Hub stuck at suspend mode (omri sarfati)
We have a device with USB2514B USB hub. Its works fine but after a long time running the USB hub stop working. It looks like the hub is at suspend mode (SUS_IND_N = 3.3v) and all PRTPWRx port are at...
View ArticleMCP1703 overheat (D3mence)
Hello to Everyone, I just started in the development of a 24fj256GB106 microcontroller, and I'm having problemswith the power supply regulator that produces Overheat. For this purpose, i just bought a...
View ArticleMTD6501C & MOSFETs for bldc (georgz)
Hi, i 've been looking for a bldc motor control when i found MTD6501C. I think is ideal for motor control but the motor sequires at least 2Amps and the according to the datasheet MTD6501C can not...
View ArticleRE46C190 Serial Data Output (Klaus Breining)
We are using RE46C190 within the development of a smoke detector. For the characterization of the parameters, modes T1...T5 are used. At the end we would like to read-out the data using mode T6. But...
View ArticleMCP1725 supply current (Szidor)
Hi! I'm a newbie hobbyist, so this maybe a stupid question, but here goes:I bought an MCP-1725 fixed 3,3V voltage regulator. The datasheet indicates a typical supply current of 120uA. I put 4,5 V to...
View ArticleI need help for sensor to measure heart beat and sp02 (NewtoXc)
Hi Guy, i need your help to advise me is there any sensor available to measure the heart beat and spo2 level.Please kindly advise is there any referance link or others...
View ArticleWht happens with MCP16251 when Vin higher than programmed Vout (CoNative)
Hello,I have a project that I'm powering using a single 1.2V AA NiMH battery. The MCP16251 is programmed with 1M ohm bottom resistor and 1.2M ohm top resistor for ~2.7V output. It has ceramic 10uF on...
View ArticleDesign a inverting amplifier with mcp6002 (tablet23)
Hello, I would like to design a inverting amplifier with the mcp6002. I have an only supply voltage (5V). I found this schematic(file attached) in a microchip pdf, but if mcp6002 only support positive...
View ArticleDo you know .. (moldev)
a device/modul like this? A touch-display with graphic controller and some outputs and you can configur the visuals and set some buttoms on the display as output. Or instead of Ports a UART connection?...
View ArticleMCP3551 delivers odd data (Lutzacht)
Hi guys,i combined MCP3551, PIC16F1938 and AD421. PIC and AD421 co-operate perfectly. Unfortunately this does not apply for the MCP. In single conversion mode the PIC reads 01010101..., in continuous...
View ArticleMCP6052 output can withstand 15V? (kw)
Trying to figure out if I can inject 15-20V AC on the output of MCP6052 (powered at 3.3V, inputs between 0 and 3V) with a 10k resistor between this oscillating signal and the output pin...
View ArticleQuestion regarding maximum AMCLK on MCP3911 (Constantin)
Good morning, I have a question regarding the recommendations from MCP regarding the MCP3911 analog front end. Specifically, the master clock has a maximum input rate of about 20MHz, whereas the...
View ArticleQuestion on PAC1720 (wdssll)
Hi,For the dual channel power monitor PAC1720, anyone know if the current of the two channel can be measured simultaneously? Is there one ADC or two ADCs inside the chip? If there is only ADC with...
View ArticleMCP23S08 QFN Exposed Pad question (x_zoli)
Hello, I'm using MCP23S08 in a QFN package in a project and have no clue where to connect the exposed pad. Can anybody help me with this? Thanks in advance!..
View ArticleMCP23S08-E/ML Exposed Pad connection documentation? (tmagdahl)
Hi, I haven't been able to find any written info regarding the connection of the MCP23S08-E/ML's exposed pad (QFN-20). Gnd (Vss) is my guess but would like to have written proof so that the PCB has no...
View ArticleMCP2155 without flow control? (Grayson Honan)
I'm using the typical null modem wiring with an MCP2155, but the chip just isn't outputting anything it receives. Is there any specific way I should be wiring up the 2155 to just make it a straight...
View ArticleRN42 Bluetooth Radiated Spurious Emission Testing (Petras)
Hi, We are using a Microchip RN42N in our product, and are taking it for Radiated Spurious Emissions testing at a test house. The relevant standards are EN 300 328, RN 300 440-1, EN 300 440-2 (all RSE...
View ArticleMCP2200 Connection Problem.... (rahulshah7388)
14-Bit Core (instructions, reset, WDT, specificati: http://www.microchip.com/forums/fb.ashx?m=802077..
View ArticleMCP3421 odd behavior (SGHughes42)
I'm using an MCP3421 to digitise the output from an RTD sensor. The sensor is buffered so the input to the MCP3421 comes straight from the Op-Amp output. I'm using the ADC in 16 bit mode with the PGA...
View Articletc104 shutdown pin (tbelo)
Hi, Im using the tc104 with the shutdown pin to power on/off the mcu controlled by a slider on.on switch. Is a battery application. I ll be giving GND for power off and 4,5volts for power on, to the...
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