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RE: DRV8825: motor driver not work after 2nd time power up...
Dear Sir,The result as below.The customer product is camera with up-down, and left-right motor control!Since the camera is not for security but for consumer, that is why they need to turn on/off the...
View ArticleRE: DRV8303: Negative gate voltage during regeneration
Hi Rick,did you find anything about this matter? Do you need further information?
View ArticleRE: DRV8837: back-electromotive force during controling the motor
Hi ttd,The DRV8837 does not need external circuitry for normal operation.Additional circuitry may be required if VM exceeds the absolute maximum rating. Examples of additional circuitry are larger...
View ArticleDRV8837: back-electromotive force during controling the motor
Part Number: DRV8837Dear Technical Support Team, Does DRV8837 need external circuit to take measure for back-electromotive force during controlling the motor?I think that FET body diode configuring H...
View ArticleRE: DRV8303: Negative gate voltage during regeneration
Hi Simone, Sorry for the delay, and thank you for reminding me. I have contacted the experts on this device. We should have a response in a couple of days.
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DRV8303: Negative gate voltage during regeneration
Part Number: DRV8303Hello to everyone,I have a new issue with the above mentioned three phase driver.I have an application where I use two legs of drv8303 to drive a reversible DC motor. In this...
View ArticleRE: DRV8302: DRV8302 buck converter not working/gate driver shuts off
Hi Konstantinos, We will investigate and reply soon.
View ArticleDRV8302: DRV8302 buck converter not working/gate driver shuts off
Part Number: DRV8302Hello I have a problem with the drv 8302 predriver. I use the internal buck converter to power a c2000 launchpad which controls the driver with 6 step commutation with active...
View ArticleRE: DRV8825: motor driver not work after 2nd time power up...
Hi Peter,Please ask the customer to:1) Change VREF to .8V -- This will reduce the current through the recommended 0.6A2) Add a pullup resistor to the nFAULT pin -- this will allow observation of device...
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DRV8825: motor driver not work after 2nd time power up...
Part Number: DRV8825Dear Sirs,My customer use DRV8825 for their motor driver.As customer feedback, while the first time power up, the driver and motor work fine.However, they must delay next power up...
View ArticleRE: DRV8305-Q1: drv83055 damage
Hello, I am facing the same problem with DRV8305, fault of AVDD. Do you have any conclusions about causes of this problem? Thanks!
View ArticleDRV8305-Q1: drv83055 damage
Part Number: DRV8305-Q1hello:recently i have several 8305 damaged when i use 8305 drive a damage motor.the motor was damaged with a pahse having 0 inductance .in this case ,the 8305 should protect...
View ArticleRE: DRV8305: device danaged more times with AVDD 0V after crash
Hello, I am having a similar problem with DRV8305. Is it possible to kill AVDD LDO over sense resistor pins? Because I am using 5 mOhm sense resistors, and AVDD regulator gets damaged when my BLDC...
View ArticleRE: DRV8305: device danaged more times with AVDD 0V after crash
Hi Eray, Yes, this is possible depending on the amount of current in the system. If large voltage spikes are induced across the SN / SP pins of the device it is possible to damage the internal Current...
View ArticleRE: DRV8305: device danaged more times with AVDD 0V after crash
Hi, Actually I have capacitor across the pins. And resistor is sized considering current range of application. Still a problem. I am planning to add a TVS diode between SN/SP pins. Hope it solves. Thanks!
View ArticleRE: DRV8305: device danaged more times with AVDD 0V after crash
Hello,You see, uit seems a problem caus you are the third case with this problem.to Phil :What i the typical load, the IC is made for ?When you have such unsymmetrical input ranges between S+ and S-...
View ArticleRE: DRV8305: device danaged more times with AVDD 0V after crash
only a capacitive filtering of dynamic peaks seems not the solution. I have also 1 nF between S+ and S-. It should be hardly clamped to the limits. Question: What about using the device completely...
View ArticleRE: DRV8305: device danaged more times with AVDD 0V after crash
In the positive range It seems not the problem cause of the huge current which leads to 5V but also a Diode to VREF would give more trust. at the nagative side maybe 5 Diodes in serie from PGND to SP-...
View ArticleDRV8305: device danaged more times with AVDD 0V after crash
Part Number: DRV8305Hello,Im new here . Dont know if Im heard.I tets the drv83055Q in an automotive application.UVDD 20 V, have exactly the schematics of the application in the datasheet. PWM...
View ArticleRE: DRV8305: Dead time over temperature
Hello Yamamoto-san,To clarify, 50ns from typical + 50ns shift for high temp. The total typical time at 125C temperature from char data is ~100ns.
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