RE: DRV8835: Rds(on) when supplying 3V to VCC
Hi Kato-san, As mentioned I was only able to find the following additional data at 25C. RDSon, VCC = 3V, VM = 5V Typ = 340 mOhm Max = 385 mOhm No data is available for the VM = 1.5V, 2.0V, 2.5V with...
View ArticleRE: DRV8301 - SPI Register Report "FAULT"
Hi Masky, The overcurrent protection monitors the Vds voltage of the FETs such that it compares the value to that stored in OC_ADJ_SET register value. If Vds exceeds this value stored in the register...
View ArticleDRV8301 - SPI Register Report "FAULT"
I am attempting to drive a sensorless BLDC motor using BEMF control. I'm fairly early in the development cycle and am currently trying to determine the proper settings to use in order to ramp the...
View ArticleDRV10983: Begnier to I2C
Part Number: DRV10983Hi,I am intending to use the DRV10983 to drive a sensorless brushless DC motor. I have connected it as shown in section 12 of the DRV10983 datasheet.When powered up the motor does...
View ArticleRE: DRV8835: Rds(on) when supplying 3V to VCC
Hi Rick-san,Thank you for your information.I have one more request, so could you please tell me how to measure Rds(on) using the DRV8835EVM like your bench ?Best regards,Kato
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DRV8835: Rds(on) when supplying 3V to VCC
Part Number: DRV8835Hi,Could you please tell me "Rds(on) vs VM" about the following condition when supplying 3V to VCC ?I have already filled it in for 3V@VM which is mentioned in DRV8835 data...
View ArticleRE: DRV8301 - SPI Register Report "FAULT"
Hi Raymundo,first of all thank you for your quick answer. Only to clarify, you mean that FAULT bit on status register 1 is the same as OC (based on the OCP_MODE), is it?Many thanks again.
View ArticleRE: WEBENCH® Tools/DRV8801: quiescent current in sleep mode vs. nFault Output...
Hi Rick, thank you for your quick answer!!! Sorry, I didn’t found directly the responsible post in the forum. The work around is possible - thanks! But currently we have implemented for the zero series...
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RE: DRV8305: DRV8305 Gate Driver Not Pulling Low
Hello Rick,Thanks for your reply. When high side gate is high, low side gate is pulling low always. Here:This behaviour at the gates (and phases) causes non-linearity between command duty cycle and...
View ArticleDRV3245-Q1 datasheet
Hello,I am currently working on a project in which we need to control a trhee-phase inverter. So I am on a tehcnological watch. I am looking for the full datasheet of the DRV3245-Q1 component. Indeed...
View ArticleRE: DRV10983: Begnier to I2C
Hi Chad, Please download GUI from web, it is available under the software section www.ti.com/.../drv10983evm. EVM kit should have USB2ANY which can be used as interface with PC and GUI. Regards, Krushal
View ArticleRE: DRV10983EVM: About DRV10983EVM Application Question
Hi Wen, Maximum speed is normally provided by motor manufacturer. You have to study load speed characteristics of motor and based on the load requirement you can estimate maximum speed. Another to...
View ArticleDRV10983EVM: About DRV10983EVM Application Question
Part Number: DRV10983EVMHi Team,Currently I use DRV10983EVM simulation for three phase fan, but have some question need you help.1. Could you let me know Align Time mean in Motor? I see section 4.4...
View ArticleRE: DRV10983: drv10983 parameters may affect motor current how much relative...
Hi Simen, Sorry for delayed response. The current consumption is depended on RDS ON ,motor resistance and Torque constant. During normal operation, the resistance of motor will in series with RDS of...
View ArticleDRV10983: drv10983 parameters may affect motor current how much relative Error?
Part Number: DRV10983Hi TI experts, My customer’s fan good or bad bases on below rule,“CCW: 160mA(+12.5/-25%) , Over +12.5/-25% is NG.”Could someone explain any drv10983 parameters to affect motor...
View ArticleRE: DRV8884: problems with the driver
Hi Victor,Please refer to the Table 7 of the datasheet for a summary of fault conditions and the recovery.Do you have a solid connection to the thermal pad?
View ArticleDRV8884: problems with the driver
Part Number: DRV8884Hi i have problems with the DRV8884, i set the enable signal to high, and the sleep signal to high , but the signal nFault is changing over the time , i am not sending steps, and...
View ArticleRE: DRV8301: Making H-Bridges for running DC motors
Hi Kash,Assuming you have single phase motors, you could use the DRV8301-69M-KIT and use the high side FETs to drive them. Please also note the Power up sequencing requirement in section 8.1.1 of the...
View ArticleDRV8301: Making H-Bridges for running DC motors
Part Number: DRV8301Hello All,I'd like to have two H-Bridges to run two brushless DC motors. Has anybody experiences working with "DRV8301-69M-KIT"? I need to have H-Bridges with continuous current of...
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