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DRV8837: DRV8837 protection diodes and VM
Part Number:DRV88371. Can I use protection diodes in the upper transistors for charging my Super-Cap. By connecting the battery to OUT1 and OUT2 (in 2-3 seconds)? (see my attached diagram)2. If yes,...
View ArticleMotor Driver similar to L293D
Hi,I am looking for an Integrated Motor Drive solution for out DC motor. The Specs are simple, the motors are 12 V DC motor with 1.8A RMS current draw. We need bi-directional control with variable...
View ArticleDRV10987EVM: Reading motor speed register
Part Number:DRV10987EVMHi,When I read MotorSpeed register (0x01), sometimes I get speed(in Hz) 1638, which is actually not correct. Why am I getting high speed ?-Archana
View ArticleDRV8837: Charge Pump Switching Frequency
Part Number:DRV8837Hello,My customer is trying to track down some EMI issues and would like to know what is the switching frequency of the internal charge pump of the DRV8837Thanks very muchFaizul Bacchus
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DRV120: Current drop to zero after peak and then attempts to recover back to...
Part Number:DRV120Rpeak = 100kRhold = 100kRosc = 200kCkeep = 1ufVin = 24VdcCbypass = 4.7uf/50vFluid Valve = Parker 002-0010-900Current probe TCP0020Current drops to zero at random intervals. Any tips?
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DRV8703-Q1: VDS Threshold Resister Setting Value
Part Number:DRV8703-Q1Dear, Sir.Regarding VDS Threshold Resister Setting as below, My customer is feeling strange the value shifting from 011b=0.2V to 100b=0.12V. They would like to double-confirm the...
View ArticleBOOSTXL-DRV8323RS: How to change iDrive setting using the Instaspin
Part Number:BOOSTXL-DRV8323RSHi,We a re seeing some ringing on the high and low side turning off, a possible mean is to adjust the iDrive. May I know how the iDrive setting can be adjusted on DRV8323RS...
View ArticleDRV8870: inrush current at startup
Part Number:DRV8870My customer found some inrushcurrent at startup.Peak is 10A and duration is 600ns-1us.Does it provide critical damage to DRV8870 and destroy the chipset?In my experiance, there is no...
View ArticleDRV8703-Q1: VBUS Protection for motor generated voltage when in break mode
Part Number:DRV8703-Q1What is most simple (read as BOM with least components and inexpensive BOM) VBUS protection when motor is in breaking mode - therefore generates overvoltage on VBUS?Would coasting...
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DRV8305: Current sensor output of DRV8305: Bias shifts
Part Number:DRV8305I have a custom board with C2000 delfino MCU & DRV8305 for driving BLDC motors. The current sensor output of DRV8305 is fed to ADC of Delfino MCU. When I'm reading the phase...
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DRV8303: DTC not working properly on DRV8303
Part Number:DRV8303Good afternoon TI,I'm using the DRV8303 along with the TMS320F28069M microcontroller on a custom BLDC motor controller board. I'm trying to adjust the PWM deadband using the DTC...
View ArticleDRV10975: Maximum FG frequency / motor RPM
Part Number:DRV10975How do I determine the maximum RPM that the DRV10975 can drive a motor? I have seen reference to a maximum electrical speed of 1000Hz, but I can't find good documentation of that...
View ArticleDRV8703-Q1: The driver is not starting to "drive"
Part Number:DRV8703-Q1Hi,I try to drive the motor in forward and in reverse mode. I deactivate the spi port via nscs pin. All other connection as same as in the evaluation board. I apply a pwm signal...
View ArticleDRV8412: DRV8412 for Pin 14 signal OC_ADJ, what is the Max input current over...
Part Number:DRV8412Sirs,On P/N DRV8412 for Pin 14 signal OC_ADJ, what is the Max input current over temperature of -35C to +125C?We need to know this for our Reliability analysis. Please provide an...
View ArticleDRV8873-Q1: Current Mirror Scaling spec
Part Number:DRV8873-Q1Team,The DRV8873-Q1 is still in preview. The long datasheet gives a typical value for the parameter Current Mirror Scaling on the current sense outputs. Can you also provide the...
View ArticleDRV8872: What is the DRV8872 absolute max. Ratings for inside H-beige FET?
Part Number:DRV8872Hi ,What is the DRV8872 absolute max. Ratings for inside H-beige FET?thanks,best regards,Simen
View ArticleDRV8838: 1.8V VDD power supply
Part Number:DRV8838Dear all,My customer use DRV8833 with Vcc 1.8V power supply since the control signal is from 1.8V platform, in our datasheet, the maximum VCC rising threshold is 1.8V, they are...
View ArticleDRV8701: DRV8701P- No motor movement in Coast
Part Number:DRV8701We have a pcb design with the DRV8701. I need some clarification. We want to PWM our BDC in both directions. Focusing on one direction, I set IN2 to 0, and PWM IN1. Per the...
View ArticleBLDC Drum Motor Controller
Hello,I am looking to experiment with a large drum BLDC motor (36 slot 48 pole) using high voltage (400 - 1000), high frequency (35 khz - 100 khz), and low current (below 5 amps). Is there such a...
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CCS/DRV8320: VCP Capacitor failure
Part Number:DRV8320Tool/software: Code Composer StudioI have built a custom board based on instaspin reference designs using the DRV8320S gate driver chip for driving the MOSFETS. The system appears to...
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