Help me chose an appropriate motor driver IC
Hello guys,I have 4 Brushed DC motors each requiring about 2.5A of current. Each motor should be supplied with 12V DC.I need to find an appropriate TI driver that will be able o drive them all...
View ArticleDRV8837/DRV8838 total sleep current
Hello Guysi have a essential question about the DRV8837/38. How much is the current at the control Inputs and total current when nSLEEP = 0V?I have VCC=2.5V VM=3.6VFrom the datasheet:Page 1: Low-Power...
View ArticleQuestion about DRV8701.
Hi,I'm looking at this driver and it seems to offer a good number of features. My only question is my that application is for a 24vDC motor rated @ 24 Amps. My power supply is rectified 24VAC which...
View ArticlePWM Polarity Inverting Circuit for TEC module
Hello,Now I am working on a PWM polarity inverting circuit for TEC module with 12V power supply, 2 TECs requires 5A driving current in total. I found that DRV8842, DRV8850DRV8871 motor driver and...
View ArticleHow to measure the current drawn by the motor ?
Hello motor driver specialists,I hope this message finds you well.Let me describe you what bothers me.... We have a DC brushed motor and we're intended to use DRV8871 IC to drive it.We're using...
View ArticleZener diode selection in unipolar stepper motor(DRV8803)
Hi All,I just need to know how to select the zener diode (connection btwn VM and VCLAMP) in DRV8803 stepper motor driver design,How much zener power dissipation rating need to select and how much zener...
View ArticleDRV8872 Tocp min and max value
Hi,My customer is using DRV8872. Could you let me know Tocp min and max value, please?I think this tocp is design value. For the reason, Only typ value(1.5us) is showed at datasheet. I want to know...
View ArticleHelp me find the suitable motor driver for BLDC servo application
Hi Everyone,I am looking for a motor driver IC to control a 1A 24 V BLDC motor (control input - Analog/PWM). I have couple of questions;1. Does TI have any motor driver IC which provides Sinusoidal...
View ArticleBQ32002 IBACK spec at 85C
BQ32002DR IBACK Backup supply current is specified at TA of 25°C = 0.9μA Typ, 1.5μA Max, but customer needs to know what it is at 85C TA.Thanks,Brian
View ArticleDRV8332 FAULT timing?
In OC latching mode, what is the time delay between the sensing of the OC event and the Fault pin driven low?
View ArticleDual-stator dual winding permanent magnet synchnous generator, on this...
heloo all, i am working on Dual-stator dual winding permanent magnet synchnous generator, on this process in some state i want to design a circuit with following requements::1)input will in range of...
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DRV8824 1M-ohm resistor at Charge pump
Hi,Could you tell me the mean of 1M-ohm resistor at Charge pump, please? This is below picture. If user does not have this resistor, what will happen? Must we have this resistor? Best regards,Shimizu
View ArticleDRV8301 GVDD
We're testing the DRV8301 for GVDD output with only the components associated with that block soldered on. What are the minimum requirements for getting voltage from GVDD?
View ArticleDRV8842 nFault Status
Hello,I am working on a PWM TEC driver circuit, DRV8842 meets all the requirements of the circuit, but I also found one issue. First of all, I set I4:0 to 11011, set VREF = 3.3V and Rsense =...
View ArticleLarge current sense on drv8332
Hello,Im using DRV8332 the datasheet have schematic and written on it max Voltage on current sense is 100mv , but i need to add bigger current sense resistor to get more voltage to my poor adc...
View ArticleDRV8301: PVDD voltage and DC link voltage
Hi,I am using the DRV8301-69m-kit. We want to test drives with DC link voltages as small as 2 V. For this reason, we modified the board by supplying the PVDD1-3 by an external voltage source of 16 V.We...
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DRV3201 undervoltage/VGS comparator errors
Hello,i have the drv3201 board and want to move a bldc motor.My problem is, that the driver writes after every change of the IHSx and ILSx signals undervoltage and VGS comparator into the status...
View ArticleDRV11873 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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