DRV11873 and few questions about it
Hello,First of all, I'll write a short description of problem origin. I work and study the same time. I am writing my master thesis at university and I want to use DRV11873 in the thesis to drive BLDC...
View ArticleDRV8711 Register 1 Bit 10 Issues
Hello TI,We are having an issue with our DRV8711 Register 0x01 Bit 10. This is very bad for us since I'm planning on using the Internal Stall Detect feature. *NOTE: Bit 10, not Bit 11* (I am aware...
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DRV120APWR as solenoid driver issue
Hi TI Expert,I used DRV120APWR to control the solenoid, but noticed when I first power up the unit, the solenoid will energize and when monitor the voltage on the SOLENOID_EN and I measured 3.3V. So I...
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DRV10983, BLDC motor and Maximum Speed
Dear TII have some problem with my motor,My BLDC motor parameter:Operating voltage: 24 Current;: 1.2A. Max.,RPM: 3000 (non load),Pole; 10, Phase resistance: 0.58 (Ohm).In my...
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DRV10970 - Sinusoidal output & speed variability
I am working to develop a BLDC motor driver. The selected motor is a Faulhaber 2622, 6V version, datasheet attached. I'm using the DRV10970 eval board and have configured the board properly such that...
View ArticleTPL7407L - Some questions
Hi all,Would you mind if we ask TPL7407L?<Question1>On the datasheet P11, there is optional diode between VSUP and COM.How much of rated voltage's diode should we use?<Question2>On the...
View ArticleSeries Capacitor on Output to Inductive Load on DRV 8800
I have read all of the datasheets and technical notes regarding this motor driver and I can't seem to find anything regarding this specific application.I want to put a bipolar capacitor in series with...
View ArticleTPL7407L - with unipolar stepping motor
Hi allWould you mind if we ask TPL7407L?Please refer to the following file.(Please visit the site to view this file)Could you give us some advice?Kind regards,Hirotaka Matsumoto
View ArticleMinimum controllable rpm with DRV11873
Dear,I am using the DRV11873 to control a small Faulhaber 1509T006 brushless DC motor. I have built the schematic of section 9.2 in the datasheet and since the motor does not have a COM pin, I have...
View ArticleTPL7407L - Regulation Circuitry
Hi allWould you mind if we ask TPL7407L?On the datasheet P7, the datasheet shows "Regulation Circuitry" .Does "Regulation Circuitry" has per driver?(Are there seven Regulation Circuitry? or only one...
View ArticleTPL7407L - Ccom
Hi allWould you mind if we ask TPL7407L?On the datasheet P9 shows that Ccom is 0.1uF.We guess that this is to reduce noize, why is 0.1uF used for?And if it has some formula to caluculate, could you...
View ArticleDRV11873 Damage
Hello,I am working on BLDC motor circuitry using this driver DRV11873. There is on problem associated with this driver which I faced multiple times. I am operating this IC at 15V and 100% PWM. If I...
View ArticleDRV8835 TEC H-bridge application
Revised a working TEC design for new board to use DRV8835, smaller, fewer components, and added protection.But think the protection is causing problems.Would like opinion if something I can do before I...
View ArticleTPL7407L - Vcom belos 0.5 V/us and Absolute Maximum Ratings
Hi allWould you mind if we ask TPL7407?We are sorry to keep pestering you.<Question1>The datasheet on P13 shows,"The COM pin must be limited to below 0.5 V/μsTo prevent overvoltage on the...
View ArticleDRV10983 I2C Interfacing with MSP430 Launchpad
We would like to program DRV10983 in a post soldering process through I2C interface. In this regard, we will use MSP430G2 Launchpad. As in this case, both the Launchad and DR10983 would be separately...
View ArticleQuestion for TI Reference Design : AC 230V Current Controlled Solenoid Drvier...
Hello,I have a question for TIDA-00284 Reference Design with DRV110.As my understanding, the resistor connected to HOLD pin of DRV110 used to set I HOLD current, and the equation is 150mV/R SENSE for...
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DRV592 FAULT0 ACTIVE
HI,please find below the feedback from my customer HD.I have another question about the DRV592 device. The DRV592 is now implemented in a printed circuit assembly and is operated within the nominal...
View ArticleHS+LS FET on-resistance of DRV8835
HS+LS FET on-resistance of DRV8835My customer is considering to use DRV8835.They have a question.1) Do decrese HS+LS FET on-resistance of DRV8835 when they increase only VM? For example;...
View ArticleTPL7407L - Absoulte Maximum Rating of Continuous drain current per channel(Ids)
Hi allWould you mind if we ask TPL7407?We are sorry to keep pestering you.<Question>About Absoulte Maximum Rating of Continuous drain current per channel(Ids), does it means that it allows to...
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DRV8302 produces fault and gets hot
Hi everyone,I am using the drv8302 mosfet driver with CSD18535KCS Mosfets. The circiut works really well for serveral days. But now for the second time the drv8302switches to fault when I enable the...
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