MTCH6102 (pablogcbcn)
Hello there,I've been working with this sensor for some time and the other day I wanted to test the gesture recognition with a 3x3 diamond matrix. The info I'm getting from gesture dialog is Swipe...
View ArticleKSZ9897 Linux driver (harel.ashwal)
LK"I Hi,I'm using a BeagleBone Black based linux board.How Do i integrate the KSZ9897 linux driver into my BBB linux kernel? KSZ9897 Driver:https://github.com/Microchip-Ethernet/UNG8071 BeagleBone...
View ArticlePAC1710/1720 I²C Behavior (o.kupke)
Hello, i have a question regarding the PAC1710/1720 Current/Power-Sensor behavior, accessing it over the I²C-Interface. I searched the Web and Forums not able to find any answer.I have several PAC1710...
View ArticleMCP2221A loop's back data of TX to RX (plouf)
Hi i was experiment with MCP2221A , i have create a small PCB with MCP2221A, i left Tx and Rx open in airstart a terminal (PuttY) and noticed that every a few keystrokes send from terminal it bounce...
View ArticleDocument AN1149 - MCP73837/8 - bug in the Figure 2 - wrong PMOS position??...
Hello, I am working on battery charger system with MCP73837. During reading AN1149 I have focused on the the Figure 2 on the PMOS transistor. Below I am sending the original part of picture with...
View Article[MCP73831/MCP73832] SOT package, safe value for maximum charging current?...
I made battery charger using MCP73832, circuit very simple, powered by micro-USB to charge 2000mAh battery.Schematic as suggested in datasheet (2k resistor, so 500mA charge current).It correctly works...
View ArticleMCP2200 quartz capacitor (leoleoleo24)
Hi, I have an MCP2200 and I connected to it a crystal quartz 12 MHz but I don't know what capacitors I should connected with it. I don't know really what is the goal of the two capacitors. Could you...
View ArticleATM90E26 Energy registers and RMS accuracy (kmarcel)
Hello, I have a few questions about ATM90E26 in a configuration with a MCU connected for data pooling. 1. Regarding very low energy readings from Active Energy register The datasheet (110714) states:...
View ArticleMCP1640 Backpower (GroundBounce)
Hello there, I'm using the MCP1640 voltage regulator to step up the voltage from a single battery to 3.3V for the microcontroller power supply. The microcontroller then controls the enable pin of the...
View ArticleDetecting a negative voltage signal using a MCP6001 Op Amp (Peterthehop)
I have a battery powered PIC circuit working at 3V and I need to detect when a signal input voltage goes below -100mV. The input is protected to go much below -180mV by schottky protection diode. There...
View ArticleUSB Hub with eMMC 5.x support (jmax604)
I am using a USB2641i on a project as both a USB Hub and interface to eMMC. I understand that eMMC are backward compatible for interface to this product, but I wonder if there is a similar product that...
View ArticleTC7662B Chargepump datasheet ratings vs real life performance (RockwellCollins)
Hello all, First of all, moderators, my apologies if this is the wrong category but I failed to find a category that fits power conversion components. So; I have a design that uses a TC7662C...
View ArticleHave question with MCP39F511 design board ? (LluciferT)
I look reference MCP39F511 and want design board.But i have question,in datasheet MCP39F511 using Power AC/DC and MCP1754S-3V3. What will happen that if I using other power DC difference and no using...
View ArticleMCP619T Opamp oscillating (sinusoidal output). (dhanrajpchoudhary)
Hello,I am using MCP619T opamp as differential amplifier with gain factor of 10.But the issue I am facing is that my Opamp output is oscillating for fixed /constant input signal.what can be the...
View ArticleHD44780 LCD : Should EN be Pulled Down or Up or None of the above ? (Abraxas)
I've been trying to get an LCD to work for quite sometime. I've put in LED light up lines to make sure it's getting through all lines of code. I've checked wiring many times. The __delay 's seem to...
View ArticleMCP73837 burns after removing Vac (gmorfeus)
Hi, I designed a tracking device for boat. The device has NCP3170A as PWM switching regulator on input then all is connected to MCP73837 reference design "Designing A Li-Ion Battery Charger and Load...
View ArticleUSB3300 RXCMD oddities at High Speed (alvieboy)
Hi all, (still unable to link images...) I am currently implementing a FGPA-based USB High-Speed controller using an USB3300 (Waveshare module). Everything seems to work well when using Full-Speed...
View ArticlePIC32MX USB micro interfacing (microchip777)
hi, I am trying out self made USB micro hardware following the USB starter kit 3. My USB device is not recognized. I assume I have mistake in my micro USB connection to PIC32MX470 microcontroller....
View ArticleMCP37Dx1 Input Impedance (Skadi)
Hi, I'm realizing a PCB which houses the MCP37D31-200 analog to digital converter in combination with a differential ADC driver. To design a suitable anti aliasing filter (3rd order butterworth LPF)...
View ArticleHT0440/HT0740 Additional information. (Peter.M)
Hello there, I am seeing additional information relating to the above named devices, the HT0440 and HT0740, The datasheet seems extremely vague on details relating to the devices. There is no...
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