DRV120 ROSC resistor change
On DRV120 when I only change the resistor on OSC pin the PWM frequency changes as expected but also the TKeep changes what is not to be expected. We made a little pcb board with DRV120 using ceramic...
View ArticleClik here to view.
RE: DRV120APWR as solenoid driver issue
hi James,Am I able to know what is the internal resistor sense value inside the DRV120?Rgds,kpk
View ArticleClik here to view.
DRV120APWR as solenoid driver issue
Hi TI Expert,I used DRV120APWR to control the solenoid, but noticed when I first power up the unit, the solenoid will energize and when monitor the voltage on the SOLENOID_EN and I measured 3.3V. So I...
View ArticleRE: TPL7407L - the difference between Maximum Output Current Figure.4 and...
OK, we got it. Thank you very much for your reply!
View ArticleTPL7407L - the difference between Maximum Output Current Figure.4 and Maximum...
Hi allWould you mind if we ask TPL7407L.We apologize that we keep pestering you again,,,Could you let us know the difference between Maximum Output Current Figure.4 and Maximum Collector Current on...
View ArticleRE: DRV120 ROSC resistor change
How is the inductance of the coil related in the formula's. We measured the inductance of several coils they are in the range of 364mH to 403 mH. Measured with an LCR meter TENMA 72-6634 as indication....
View ArticleRE: DRV120 ROSC resistor change
Is there a replacement for the DRV120 that can drive smaller inductions?
View ArticleRE: DRV8302 produces fault and gets hot
Hi Rick,thank you for your reply. Each capacitor has a value of 1000µC. Only the Fault pin asserted.In the meantime I reconized that the voltage source produced an undervoltage because of the current...
View ArticleRE: DRV8302 produces fault and gets hot
Hi Dirk, An undervoltage condition should not damage the device directly. It could indirectly if the event causes PVDD to exceed the absolute maximum voltage. Is it possible to create the same event at...
View ArticleClik here to view.
DRV8302 produces fault and gets hot
Hi everyone,I am using the drv8302 mosfet driver with CSD18535KCS Mosfets. The circiut works really well for serveral days. But now for the second time the drv8302switches to fault when I enable the...
View ArticleRE: Need help in finding a motor driver for performing current and torque...
Hi Vivek, Sorry, there is no one device that has all of these features and requires no software. The closest device appears to the DRV8308. This device requires external FETs that can be tuned to your...
View ArticleRE: Looking for Micro-controller/driver for a 1 A, 5 V, BLDC
Hi Stefan, Our experts on low voltage devices have been contacted and should reply soon. What is the tolerance of the 5V Vdd?
View ArticleRE: Looking for Micro-controller/driver for a 1 A, 5 V, BLDC
Hi Rick, The expected tolerance is less than +-5%. Regards, Stefan
View ArticleLooking for Micro-controller/driver for a 1 A, 5 V, BLDC
Hi,I am looking for an micro-controller (possibly with embedded driver circuitry) for current/torque control of a brush-less DC motor. This controller should be able to utilize SPI or I2C interface,...
View ArticleRE: DRV120 Sense Resistor Value
KPK, The datasheet says the resistance of the OUT pin to ground is 1.7-2.5 Ohms. My educated guess, based on comparing the DRV110 and DRV120 datasheets, is that the sense resistance is 1-Ohm. The rest...
View ArticleRE: Need help in finding a motor driver for performing current and torque...
Hi Vivek,Just want to add to Rick's comment: another option to look at, which does not meet all the requirements either, is the DRV10970. The device is capable of delivering >20W power, but max...
View ArticleNeed help in finding a motor driver for performing current and torque control...
Hi Everyone,I am looking for a motor driver IC to control a 1A 24 V BLDC motor (control input - Analog/PWM). I have a question;Does TI have any motor driver IC which provides Sinusoidal &...
View ArticleRE: DRV120 ROSC resistor change
Marcel,The inductance on the out pin should not be an issue here, but the other information you posted is interesting. Would you please send me the following information so I can better understand your...
View ArticleRE: TI DRV8301 bldc motor control - problem with the PWM
Everything is fine now. I changed the MOS-FETS of the third phase and it is working now. Thanks for supporting me.
View Article