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DRV10863 PWM drive question
Does the PWM drive of TI (DRV10863) satisfy the following mask condition? How to filter or bypass spikes?Following picture, PWM Frequency is 25kHz, duty%20~80%！
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Blown DRV 8801
Hello,I have a circuit using two DRV8841 and one DRV8801 fed by a 24V 10A chinese DC switching power supply. I have one 4A DC Motor connected to each DRV8841, 8801 is unused at the moment. The DRV8801...
View ArticleDRV8844, design example for dual supply
Dear Specialists,According to the datasheet of DRV8844, it is possible to use dual supply.Could you advise about reference circuit and application note?I would like to confirm, whether useable or not,...
View ArticleBrushed Motor driver 400W, 12V, 100% Mode for Automotive Application
Hello together,recently I had a meeting, where the customer requires a motor driver with following specifications:Input: 12V car batteryOutput: 0-12V PWM, drives one external MOSFET.Switching Frequency...
View ArticleIs there a way to implement a DC motor driver with the DR8701E as a PWM?
Hello,In my company, I inherited a project using the DR8701E driving a DC motor with a simple motor ON and motor OFF function. We finally need to control the torque and speed of the motor therefore the...
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DRV8305Q1EVM initialization failure using InstaSPIN_UNIVERSAL.exe
My Customer is using InstaSPIN_UNIVERSAL.exe. They see failure while InstaSPIN_UNIVERSAL.exe is trying to initialize DRV8305Q1EVM and see below error message. How to solve this error? thnaks!
View ArticleDRV8860 about Fault Register Reset issue and enable pin isssue
Hi Team,The customer has two questions for DRV8860.1. For Fault Register Reset question:If the Data register is written 0 and the nFAULT pin is floating, is the OL(Open Load Detection) flag bit 1 or...
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DRV8711 - Stall Pin Strange Behavior
I'm seeing some strange behavior on STALLn / BEMFVn pin 19 with 256 microsteps. In my scope screen shot, purple is the STALLn/BEMFVn pin. You can see it transitions active low twice within 45us. In...
View ArticleBack emf protection in DRV8821?
Hi, I don't know if this is the right forum or not but it's the only one that seems related.If an unpowered DRV8821 is connected to a motor and that motor is suddenly mechanically driven (say it's...
View ArticleDRV8885 Input of DECAY Voltage
Hi support teamMy customer wants to use 5.1k±5%,47k±5%,150k±5% for decay mode setting resistor because of the resistor value of 5k±5%,45k±5%,135k±5% are not mainstream. Can they use these?Best...
View ArticleDRV8307 Using of Hall element at EVM
Hi,My customer tries to operate motor with DRV8307EVM. They use the hall element. it is "HW-105W". VM=24V.At this case, What are we select at JP3 and JP4? I think think that we select the following. Is...
View ArticleDRV10983 and external MOSFET
Hello, Is it possible to add external MOSFET's to DRV10983? I have 24V / 100W BLDC motor. My microcontroller don't have 3 PWM output so I need motor driver with PWM generator.Thanks and best regards,...
View ArticleBack emf protection on DRV8821
We have a door controlled by a motor which in turn is controlled by a DRV8821. When power is off, it's possible to open the door fairly quickly and develop a back emf. The H bridge MOSFET body diodes...
View ArticleDRV8711 Stall Detection
Hi, We use DRV8711 to drive a NEMA23 stepper motor, the internal stall detection is employed to avoid hard collision, all of parameters are adjusted to suitable value and the function is okay, however,...
View ArticleDRV8821 only use AB channel
Hi Team,The customer is using DRV8821. When the customer use two motors at the same time, the fever for the DRV8821 device is very serious.So he decided to use only one motor through the AB channel...
View ArticleDRV8305NE power consumption in sleep mode
Hi,Can somebody help me to know the exact current in DRV8305NE which don't have internal regulator:in sleep modein standby modein operational modeDatasheet don't refer to specific DRV8305NE device just...
View ArticleDRV8305NE
Hi,Another question for the DRV8305.How long DRV8305 takes to switch from sleep mode to standby mode relatively to Wake activation?
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FAULT always LOW
Part Number:DRV8432Hello,Im trying to use DRV8432 as voltage inverter in paralell full-bridge mode (schema below). When I apply 60kHz PWM at PWM_A or PWM_B the FAULT output is low. (GVDD is 12V and...
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DRV8308: DRV8308 consumes 130mA at plug in
Part Number:DRV8308Hi-I’ve been working with the DRV8308 EVM for a while and finally got some proto boards back for integrating it into my own design. However I’m seeing a problem where when I apply...
View ArticleDRV8313: DRV8313 About V3P3 output at sleep mode of EVM
Part Number:DRV8313Hi,I have a question about V3P3. I use DRV8313EVM.I confirmed that V3P3 is eneble at VM power-on (not connect USB), nSlEEP/nRESET is Low. I saw TP2. Why is V3P3 enable? Maybe, i...
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