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RE: DRV8711: Pre-driver fault occurs everytime
Hi Rick,Sorry I only have one 2 channels scope, although I measured the voltage from one channel, but I would check the nFAULT register to ensure the fault occurs on this channel. Here are latest...
View ArticleDRV8803: DRV8803 logic ground pin & power ground pin
Hi,1. We shorted one of the DRV8803 outputs to 24V，and the short current is about 9.5A. This current flow into ground and cause ground voltage level rise up, the amplitude is exceed 1V. Is this...
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BOOSTXL-DRV8323RS: For DRV8323RS Reverse Protection schematic design
Part Number: BOOSTXL-DRV8323RSHi,For DRV8323RS Reverse Protection schematic, if we can reference DRV8305 schematic design?Or you have other suggest reference schematic design.Thanks your help.Best...
View ArticleRE: BOOSTXL-DRV8323RS: For DRV8323RS Reverse Protection schematic design
Hi Eric, Yes, this circuit can be used for the DRV8323.
View ArticleRE: DRV8803: DRV8803 logic ground pin & power ground pin
Hi Kevin,[quote user="Kevin Chen58"]1. We shorted one of the DRV8803 outputs to 24V，and the short current is about 9.5A. This current flow into ground and cause ground voltage level rise up, the...
View ArticleRE: Low Inductance Motor control product
Controller needs to be capable of approximately 40-50V and 30A.
View ArticleRE: DRV8305: the mean of Total voltage drop from PVDD to SH_X pins
Hi Yamamoto-san,This specification was removed from the automotive grade datasheet because we saw it was redundant in relation to the other electrical characteristics. The concern that drove this spec...
View ArticleDRV8305: the mean of Total voltage drop from PVDD to SH_X pins
Part Number: DRV8305Dear all,Could you teach me the mean of Total voltage drop from PVDD to SH_X pins?What should I pay attention to from this specification?Best regards,
View ArticleRE: DRV8305: timing to detect over current protection
Hi Yamamoto-san,Your idea is correct, this will not drift significantly with temperature.
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DRV8305: timing to detect over current protection
Part Number: DRV8305Dear all,Could you teach about following two questions?QUESTION 1,Is the longest time when short-through current flow tBLANK+tVDS(tDeglitch)?* I would like to know how long time...
View ArticleRE: DRV8305: Protection features
Hi Yamamoto-san, The word "Error" in this specification is intended to mean once an fault is detected that would result in all the gates being turned off, their is an average propagation delay of 1us...
View ArticleDRV8305: Protection features
Part Number: DRV8305Dear all,Could you teach about min/max value of 'tpd,E-L', 'tpd,E-SD' and 'VDS_TRIP'?*It is OK that the value is not guaranteed. I would like to know the actual value to think...
View ArticleRE: DRV8305: Is there switching mode we must not control?
Hi Yamamoto-san,Q1: VCPH-PVDD electric charge can maintain its capacitance under following situation?the case that high side FET is ON continuouslyThe DRV8305 will support 100% duty cycle operation...
View ArticleDRV8305: Is there switching mode we must not control?
Part Number: DRV8305Dear all,I think to drive this device with 6-PWM mode.Is there switching mode that I must not control?I concern about charging current to VCPH-PVDD cap and VCP_LSD-GND cap.I concern...
View ArticleRE: DRV8305-Q1: Dead time,ｔDRIVEP/N,Vgs monitor,internal OSC
Hi Harukawa-san,Q1: Yes, your understanding in the three different cases is correct. I agree with your timing diagrams.Q2-1: I'm working with our digital designer to close on this, will let you know...
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: Low Inductance Motor control product
Hi Jesse, Please take a look at the DRV8323RS. In both the DRV8323RS and DRV8301, there will be minimum duty cycle to deal with. This is due to propagation delays and dead time.
View ArticleDRV591: Allowed working temperature
Part Number: DRV591Hi team,My customer is always using DRV591. But in their new project, their board temperature will be 90C which exceeds our datasheet TA range. But the calculated junction...
View ArticleRE: DRV8305: Protection features
Hi Beard-san,Thank you for your reply, and I understand that I should refer to the DRV8305-Q1 datasheet about 'tpd,E-L' and 'tpd,E-SD'.And thank you for your investigation, and could you inform me by...
View ArticleRE: DRV8305: temperature variation of OTW_CLR and OTSD_SET
Hi Duncan-san, I would appreciate if you inform me when you could answer. Best regards,
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