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DRV110: Current unexpectedly changes with voltage to solenoid
Part Number: DRV110Hello,We have built a custom board designed from your reference design for the 24V solenoid. However, we are using a 28V solenoid and are not powering any other circuitry from the...
View ArticleRE: DRV8835: reduce motor starting current
Hi, Luis-sanI appreciate your prompt cooperation.best regardscafain
View ArticleDRV8835: reduce motor starting current
Part Number: DRV8835Hi,DRV8835 is to reduce motor starting current.As a measure to reduce the motor starting current, we are considering changing the VM voltage (For example VM=3.0V → 7.0V).1. Is this...
View ArticleRE: DRV3201-Q1: CS amplifier Gain Drift and Shift Buffer Offset Drift
Hello Will-san, Customer is performing offset calibration only when initial startup.They need to estimate error when temperature is changed, so they need CS amplifier gain drift and shift buffer offset...
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: DRV8818: SOA of the output FET
Hi Rick-san, Thank you for your reply. I will feedback the customer this information. Thanks, Naoki Aoyama
View ArticleDRV8818: SOA of the output FET
Part Number: DRV8818Hello,Our customer use the DRV8818.The customer connect a capacitor between xOUTx and GND to reduce EMI noise.The value of a capacitor is 6800pF or more.I suggested the customer...
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DRV595: Startup voltage issue
Part Number: DRV595I have the circuit designed using DRV595. This circuit works fine under 13V input voltage. However, when the input DC voltage is above 13V, it cannot startup. I can start at 12V and...
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: reference voltage of VCPH charge pump
Hi Duncan-san,Could you answer additional question?If my English is confusing you, please let me know.Best regards,
View ArticleRE: DRV8839: MOTOR VIBRATION WHEN OPERATE 100% DUTY CYCLE
[quote user="Rick Duncan"]Hi Chintan, Can you describe the motor vibration in more detail? Have you examined the OUT1 and OUT2 to confirm the outputs remain active? If the outputs do not remain active,...
View ArticleRE: DRV8301: DRV8301 Lock-Up Issue
Phil,Here is the customer response:Is there any other way to enable the device but via EN_GATE? It seems I have a dilemma. In order to work around the previous issue of device lockup I had to add a...
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DRV8301: DRV8301 Lock-Up Issue
Part Number: DRV8301My customer is seeing the following issue and I do not understand how this can be happening:We are using the DRV8301 in our product, and recently we had a request from a customer to...
View ArticleRE: DRV11873: Question of PWM resolution and motor contorl
Hi Krushal Thank you for your reply.>Measure resistance using multi-meter or something between 2 phase cables U-V, U-W or V-W. The resistance between two phase is 0.8ohm. As the other information of...
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: DRV110: Current unexpectedly changes with voltage to solenoid
Can you send some oscilloscope snapshots of your output voltage and drain current for various input voltages?
View ArticleRE: DRV8871: Motor current measurement with DRV8871
We would like to use the DRV8701. The question is: The built-in "overcurrent monitor" protects especially the high side FET. We require at least two different cut-off limits for our application (for...
View ArticleRE: DRV110: Current unexpectedly changes with voltage to solenoid
Just to clarify my previous post- can you capture oscilloscope shots of these nodes specifically for 15V and 28V (data points on either side of the vertex in your graph): 1. Vout (gate-driving voltage)...
View ArticleRE: DRV8701: over current protection of high side FET
Hi Franz, The FET overcurrent monitor measure the VDS of the active FET, and disabled the FET in the event the VDS is above the preset value. The DRV8701 reacts to voltage and not current. There is a...
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