BOOST-DRV8711 Logic Level
Hi I've recently purchased the BOOST-DRV8711 to evaluate the DRV8711On the board it says 3.3 on the power connector. Does this mean that i need to use logic-level shifters if I want to interface with...
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Device suggestion
Hola,We have a Megapixel Motorized Zoom lens as below：(Please visit the site to view this file)And we need a driver IC which can support Zoom / Focus / Iris function, does TI have a suitable solution...
View ArticleDRV8871 startup
Hello,Our customer now trying to use DRV8871, but their startup current is too big(about 5A/1us) and the device could not operate correctly.It seems that it due to current regulation (not OCP), so they...
View ArticleDRV8704 SPI Interface
Dear Motor Driver Team,we want to use the DRV8704 on an SPI Interface with multiple slaves.For this it needs to be ensure that SPI-SDATO output of DRV8704 is high-impedance when SPI-SCS is...
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DRV8305 instability at high-current, fast turn-ON
It seems the stability of the output is related to the dv/dt of the drain-source voltage on the FET. Using registers5 and 6 to set the current levels higher, there is significant ringing on the output...
View ArticleMotor position control example
Hello, I am beginning to look into motor position control.Should I start out with a stepper?Any recommendations?
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DRV8303 gate output problems
I'm using a DRV8303 to turn on 6 IRFB3077PBF transistors that control a sensored BLDC motor. Everything is wired up on a breadboard with the DRV8303 mounted on its own breakout board. When I run the...
View ArticleDRV8850 PWM micro pin count
Hello,I am looking at designing in 2x DRV8850 into a product to replace an Allegro A3906. I need more current drive and the inbuilt LDO would be good too. The A3906 has 2 inputs (IN1, IN2) to control...
View ArticleGND and GVDD_C connection on DRV8332
Hello,please answer the following questions:1. What is the best place to connect the GND and GND_X grounds?2. It is recommended to connect the heat sink attached to the DRV8332 to GND. Can you give a...
View ArticlePWM Polarity Inverting Circuit for TEC module using DRV8432 in parallel full...
Hello, I am working on a PWM polarity inverting circuit for TEC module with 24V power supply, 1 TEC requires 12A driving current in total. so I am using DRV8432 in Parallel full bridge mode with my...
View ArticlePWM Polarity Inverting Circuit for TEC module using DRV8432 in parallel full...
Hello,I am working on a PWM polarity inverting circuit for TEC module with 24V power supply, 1 TEC requires 12A driving current in total. so I am using DRV8432 in Parallel full bridge mode with my...
View Articlecurrent sensing low pass filtering , DRV8302
hi!I have been using BOOSTXL-DRV8301 for BLDC motor control.in the circuit schematic i saw that the current feedback (after the differential OPA stage) is fed into RC low pass filter and after the...
View ArticleDRV10983 - StepDown Regulator to Linear Regulator
Dear TI-er.My customer is designed using DRV10983.Internal StepDown Regulator is designed Linear regulator.That is used Pullup resistor's power source of I2C, FG .But, The resistor may be damaged...
View ArticleMeasure the LR time constant with DRV10983
The DRV10983 tuning guide says that the amplitude of the current ripple represents the LR time constant of the motor, but how can we know the exact time constant? For example, the current ripple in the...
View ArticleAbnormal Kt detect with DRV10983
It can be found in the datasheet that "For any given motor, the integrated value of BEMF during half of an electrical cycle is constant. It is determined by motor velocity constant Kt"Is this the same...
View ArticleDRV595EVM fault
Dear DRV595 expert!I have purchased the DRV595EVM module and was inteding to use it to drive a TEC module.When testing the module seems to go into a fault state. It shut-s off for approcimately...
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DRV110 PWM Signal - FET not coming fully on every time
A solenoid driver has been designed using the DRV110 APWR. It is designed to handle a pick current of 10A and a hold current of 0.6A. It is oscillating at 20 kHz and offers a 1s keep time for the pick...
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DRV110 Output Signal Problem
A solenoid driver has been designed using the DRV110 APWR. It is designed to handle a pick current of 10A and a hold current of 0.6A. It is oscillating at 20 kHz and offers a 1s keep time for the pick...
View ArticleDRV8801 VPROPI bandwidth
What is the Bandwidth of the VPROPI output signal?? I'm trying to understand how much it will rolloff my current sense signal. For reference, the external RC that you show in the datasheet has a...
View Articlehigh-side and low-side solenoid control
Is there an application circuit for a 5A capable high-side and low-side solenoid control with 0-3A current control using PWM signal?
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