RE: DRV8305-Q1: Dead time,ｔDRIVEP/N,Vgs monitor,internal OSC
Hi Harukawa-san, We will investigate and reply soon.
View ArticleDRV8305-Q1: Dead time,ｔDRIVEP/N,Vgs monitor,internal OSC
Part Number: DRV8305-Q1[About Dead time]I want to confirm about the dead time of DRV8305-Q1.Q1-1.See attached file(Case 1.pdf).In the case where A(rising edge of INHx) is entered after B(dead time of...
View ArticleRE: DRV8825EVM Software Installation Issue
Hi Stephanie, Please try the following. Go to the DRV8802EVM tool folder. You will find the file listed you requested under DRV88xx Software (Rev. C). The GUI in the application folder can be used for...
View ArticleRE: DRV3201-Q1: CS amplifier Gain Drift and Shift Buffer Offset Drift
Hi Ushikubo-san, We are still working on this, I plan to have results by the middle of next week. Regards, Will Toth
View ArticleDRV3201-Q1: CS amplifier Gain Drift and Shift Buffer Offset Drift
Part Number: DRV3201-Q1Hello, Please correspond following question and request from customer. 2nd Stage Gain Drift vs. temperature.Could you supply the graph that shows the relationship between...
View ArticleRE: DRV8305: behavior after charge pump broken
The design team says the device should survive a missing cap. There is circuitry in the device to limit the voltage above PVDD for this situation.
View ArticleDRV11873: Question of PWM resolution and motor contorl
Part Number: DRV11873HiI have question of DRV11873.1.What is the relationship between PWMinput and PWMoutput?(PWMin duty : PWMout duty =1:1?)2.Can we know what resolution of PWMin and PWMout is?3.In...
View ArticleRE: DRV8711: Predriver fault
Hi Harris, Please try changing register 6 from 0xF55 to 0x555 (IDRIVEP=100mA/IDRIVEN=200mA). Lowering the IDRIVE may reduce the noise in the system. You may need to examine the FET gates to determine...
View ArticleDRV8711: Predriver fault
Part Number: DRV8711HiI have desing a board to drive a stepper motor (nanotec ST5918) using the DRV8711The motor should be able to execute some turns (30) with speed 150rpm, then stop for 3 seconds and...
View ArticleRE: DRV8301: DRV8301 showing no fault still not working
Hello Rick,Yes I soldered the powerpad , but i've got no way to check as it is benith the IC . I also checked the EN_GATE = 'HIGH" and both regulators poweredup properly.VDD_SPI = 3.3V [checked]; when...
View ArticleRE: DRV8301: DRV8301 showing no fault still not working
Hi Jesal, Sorry, I missed the fact that nSCS was low through out the two transactions. At the end of 16 clocks, nSCS should be set to a logic high to frame the transaction. Please see the post:...
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DRV8305-Q1: current sampling
Part Number: DRV8305-Q1Dears:customer wants to get the middle of the MOSFET current, but between PWM and MOSFET driver has 200nS delay, I suggested customer to do 200nS delay time to meet this...
View ArticleDRV8305: configuraion of IDRIVE and the relationship between IDRIVE and...
Part Number: DRV8305Dear all,Could you teach about the configuration of IDRIVE and the relationship between IDRIVE and heating value?■QUESTION 1, How value does this device heat according to IDRIVE...
View ArticleRE: DRV8835: Question for logic input current in datasheet
Hi Rick, Thank you for your support. The customer asks more detailed questions about the IIH condition because their circuit is unusual. Configuration: SoC -> H-Bridge circuits (for control signals)...
View ArticleRE: DRV11873: Question of PWM resolution and motor contorl
Hi Janet Thank you for your reply.>2. 1% resolution. It took 1 sec to reach 95% speed command and another 1 sec from 95% to 100% speed command. Total is 2 sec. Is it possible to explain by bit?...
View ArticleRE: DRV8835: Question for logic input current in datasheet
Hi Sam,[quote user="Lee, Sam"]Question 1. Is it possible to use this configuration (output from H-Bridge) for the AIN1/2 input of DRV8835 when considering max. 50uA of IIH?[/quote]Yes, this...
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DRV8835: Question for logic input current in datasheet
Part Number: DRV8835Hi team, For customer's question, I’d like to double check the meaning of max. IIH(Input high current=50uA) in datasheet.-. The current from external host device to DRV8835(logic...
View ArticleRE: DRV8825EVM Software Installation Issue
Hi Stephanie, Did you try the link www.ti.com/.../slvc342 which is an earlier version of the GUI?
View ArticleRE: UC3638: Changing the reference voltage results in unexpected behaviour
Rick,I changed PVset to 0.8V by putting as parallel resistor of 3k9 across the 1k on the PVset divider chain.The sawtooth reduces to 3.6V p-p, and the dc voltage (at no drive) on both the CSout and...
View ArticleRE: UC3638: Changing the reference voltage results in unexpected behaviour
Hi David, Thank you for running the experiment. There is a note on page 9 of the datasheet discussing the need for sufficient headroom for the triangle waveform. Trying to run the triangle waveform all...
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