Clik here to view.
RE: DRV110 minimum ON time
I know this is an old forum entry, but I found this while searching for a solution to the same issue when using the DRV110 For solenoid Driving.The solenoid specifications are,Nominal Operating voltage...
View ArticleRE: DRV8303 control register1 resets automatically after configuring it...
Hi Jeeva, I think we should focus on the faults first. This should not be occurring. Please look at table 4. From your description, the most likely faults are PVDD, DVDD, or GVDD undervoltage. Please...
View ArticleRE: TPL7407L - Ccom
Hello Matsumoto-san, Wilson is correct. This is simply a power decoupling capacitor to help keep the voltage to the device stable in cases where the device may get loaded quickly. There is not...
View ArticleRE: DRV8305 / DRV 3201 at 150V application
Hi Girish, The inverter bridge will need ~160V to turn on the high side FETs. Where does this come from? The DRV8305 would typically provide this voltage to the high side gates.
View ArticleClik here to view.
RE: DRV8305 / DRV 3201 at 150V application
Hello RickI am not sure I follow your question. The inverter bridge is powered by a 150V battery DC bus in application. However, I see that the maximum PVDD per DRV8305 datasheet is +45V DC. What I am...
View ArticleRE: DRV8305 / DRV 3201 at 150V application
Hi Girish, Sorry I was not clear. Based on your drawing the GH_A of the DRV8305 will be connected to the gate of the high side FET. It will not fully turn on the high side FET. To fully turn on the...
View ArticleDRV8305 / DRV 3201 at 150V application
Has anyone had any experience with using the DRV8305 or DRV3201 driver IC with a motor DC bus of around 150V DC?I am considering running my inverter bridge at 150VDC and providing a separate lower...
View ArticleClik here to view.
RE: DRV120 ROSC resistor change
Marcel,The functionality of the DRV120 should not be affected by the inductance of the coil. I did some tests in the lab today, and did not see any issues with the output waveform. I used the DRV120EVM...
View ArticleRE: DRV110 minimum ON time
Elangovan,I am unable to see your pictures. Can you please put them into a ZIP folder and attach it? You can do this if you go to the Rich Text editor.
View ArticleRE: DRV120 ROSC resistor change
Marcel, Can you please take another scope shot for me? - Use a resistor greater than 160 kOhm for ROSC - Supply your board with some voltage between 12-24 V - Take the scope-shot with a time scale of...
View ArticleRE: TPL7407L - Ccom
Michael sanThank you very much for your reply!OK, we got it!Kind regards,Hirotaka Matsumoto
View ArticleRE: DRV110 minimum ON time
Dear James,Kindly clarify the reason for Malfunction in the EN & OUT (as well as source positive) during the turn OFF the pulse to EN pin (After the solenoid operates, Plunger Moves).Please find...
View ArticleDRV110 minimum ON time
Hello team,Is there a minimum ON time sepc for OUT pin voltage on DRV110 device?In one of the design I observed, as input voltage was increased, pulse width/frequency at OUT pin remained constant but...
View ArticleRE: DRV120 ROSC resistor change
Can you tell me what is the frequency is on the output when in hold current.
View ArticleRE: TPL7407L - Noise on COM pin and 0.5V/us gradient
Hi Matsumoto-san, Our expert has been notified and should reply soon.
View ArticleRE: Need Radiator or not ?
Hi Takahashi-san, The DRV8825PWPR and DRV8818PWPR use the PCB to cool the device. Assuming there is enough copper on the board, the connection to the back of the IC should be sufficient. If your...
View ArticleNeed Radiator or not ?
Hi All.My customer is looking for stepping motor driver IC.I want to ask you that Do DRV8825PWPR and DRV8818PWPR need to be attached radiator?currently customer use the motor driver which needs to be...
View ArticleRE: TPL7407L - Noise on COM pin and 0.5V/us gradient
Hello Matsumoto-san, Noise on the COM pin should be fine even if it has a slew rate larger than 0.5V/us. The concern with a fast slew rate is on the startup of the device, not really because of noise...
View ArticleTPL7407L - Noise on COM pin and 0.5V/us gradient
Hi all Would you mind if we ask TPL7407L. We do apologize that we keep pestering you again,,,Please refer to the attachment...
View Article