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DRV8412 is dead??? help please...
Hello,I'm working on system for stepper motor driving, and I'm using DRV8412...I'm working in mode 1 (M1=0, M2=0, M3=0)... PVDD=24V, GVDD=12V, motor is Bipolar 3A, 1,8ohm, 6,8mH...PWM is 50kHz...I'm...
View ArticleHigh Current LMD18200 replacement
I would like advice on a replacement for the LMD18200 with a higher continuous current rating, preferably in the 6-10A range (higher is fine as well...just not imperative).It does NOT need to be a...
View ArticleDRV8818 EVM software
Hi,Can I get the source code for the DRV8818 EVM PC based software? The firmware source code is included, but not the host source code? I would like to understand how you set up the D/A values, along...
View Articleequivalent driver
i am looking for quad/dual/single channel high side driver ,that driver is eqivalent to LMD18400,and logic input/output must be 3.3v operation,Can any suggest part number . RegardsPatil
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A problem of DRV8432 DC MOTOR DRIVE
Hello, My name is Woo-Yong KIM in south-korea.I bought DRV8432 last week, and made a circuit. please view the AUTOCAD schemetic.ut my circuit has a problem.While driving dc motor single direction, the...
View ArticleDRV8821 Vcp Issue
According to the datasheet, Vcp should be 12V relative to Vm, however on my board I'm getting Vcp=-.7V relative to Vm, when Vm=12V. What could account for this low voltage? I think I'm getting some...
View ArticleDRV8301 current sense circuitry
The DRV8301 has two current sense amplifiers which in the example circuit are shown to be used to amplify currents through resistors that have been placed in two of the three individual low side paths...
View ArticleDRV8834 cad file
I'm looking all over for a drv8834 .bxl file. Does anybody know where I can find it?If the file is not available, does anyone know the process or a good tutorial for creating a schematic file to be...
View ArticleHeat sink size selection for the DRV8432
Hello, I am designing a motor controller board, and I need to size the heat sink. I have the EVM, and the heat sink that comes with the module is very large. I need to be able to use the chip with a...
View ArticleMotor Controller Development Process Based Upon TI DRV8301
We use motors for two types of Remotely Piloted Aircraft System [RPAS] function:To power individually controllable ducted-fan / propeller propulsion units (4) using speed control (potentially up to...
View ArticleWhich control s/w package should we be using BLDC, FOC, or MOTION?
We have two BLDC motor control requirements:Speed control of BLDC motors that drive ducted-fan propulsion units.Position control of BLDC motors that drive gimbal motors for pan, tilt and rotation...
View ArticleQuestions about DRV8332
Hi,Recently TI announce a new product, DRV8332. Is it the right forum for DRV8332?Thanks!
View ArticleDriving a Stepper Motor with the CPG004_DRV8812 EVM
Hi, I have a DRV8812 EVM with which I am trying to drive a bi-phase stepper motor. I am assuming that I would have to sequence the Phase pins in the correct order manually to see the motor rotate.Is...
View ArticleA question about DRV8812 EVM
Recently we bought DRV8812EVM, hoping to test its microstepping feature on stepper motors. After downloading the FW(CPG004_RB_MSP430F1612_Firmware_LMD_TI) into its MCU and running the windows...
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DRV8432 Problems CBC Adjustment
We're using a DRV8432 in a Dual FB, CBC current limit configuration. We are experiencing problems when we change the current limit resistor. Originally, we started with a 22k resistor and operations...
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DRV8802 CP1, CP2, VCP
Hi,Is there any voltage specifications for CP1, CP2, VCP on DRV8802?On the datasheet p.3, it is recommended to use 50V capacitor between CP1 and CP2, and 16V capacitor at VCP, but I'd like to know...
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PWM problem
Hi, We're working on a project involving control of a BLDC from Faulhaber (3564) with rather low inductance. When loading the motor (sensored, velocity control) a ticking sound appears. I tried to take...
View ArticleDRV8332 /3PH Motor
Hello!I have some questions about controlling 3PH motor with DRV8332.We developed DRV8332 controll circuit by referring the application diagram in datasheet(figure 8), and BOM of DRV8312-C2-KIT were...
View ArticleDRV8332 DRV8312 DRV8432 DRV8412 switching HIGH for long loooong time,...
I have 200W DC motor application, with input voltage of 36V connected with Schottky Diode as input voltage to DRV8332. This same input voltage,is connected to buck=step-down controller TPS54260 to...
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DRV8824 High Frequency STEP signal
I am trying to implement a circuit using DRV8824 IC which will drive a bipolar motor in microstep mode. The problem arises when the STEP input signal exceeds 600Hz. The output is highly distorted. But...
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