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Part Number: DRV8821 Tool/software: Hello,
We are working with DRV8821DCAR with bipolar stepper motors with 9V / 6Ohm winding resistance. Working at 400mA chopping current is OK, but when configuring at 1Amp, the current never reach above 800mA peak at…
Part Number: DRV8821 Tool/software: Hi
We have a mature design on the field with uses DRV8821 . We provide a fixed VRef voltage to fix the current to the windings. Now the product is on the field we realized that it would be necessary to change the mo…
Part Number: DRV8821EVM Other Parts Discussed in Thread: DRV8821 Tool/software: Hi,
I would like to use DRV8821 in my current project but need to evaluate it. Using the demo board DRV8821-23EVM-001 it has 2 x independent motor control outputs. And there…
Part Number: DRV8821 Dear friends.
Please could you calculate exact values of the shunts of the step motor driver DRV8821 PT72E_EN_Rev.1.4.pdf ) for next printer:
2.3.1 Paper Feed Motor (1) Specification Item Specification:
Type PM Number of phases 2…
Part Number: DRV8821 we are using the DRV8821 as part of a controller for a new product. we have most of the chip inputs and outputs covered but have a question about the ABVREF and CDVREF inputs. We have your EV board for this chip (although we are not…
Part Number: DRV8821 Hoping you can help answer a quick timing requirement question from the DRV8821 datasheet:
I noticed Twake in the table references the SLEEPn signal yet the timing diagram below that table references the EN signals. Hoping you can…
Part Number: DRV8821
H
iWe are developing a battery-powered device. We have to control 2 stepper motors, so we are using DRV8821. We need to de-energize both motor windings to save energy. To do that, I set high signals ABENBLn and CDENBLn to disable…
Part Number: DRV8821 I'm supplying the motors with 12V and logic with 3.3V, and my R_ISENSE resistors are all 0.3Ohms, same as the reference design. Can I just hook the VREF pins to 3.3V and let the overcurrent protection do the rest? Using the given…
Part Number: DRV8821
Hi team,
Issue: debugging the voltage of Vref from 1.0 V to 3.5 V, and the output current of the motor does not change (compared from the power of the input supply).
And the customer would like to achieve the following result: Vref…
Part Number: DRV8821 HI
TPS54331DDAR, TPS2069CDBVR, TPS54531DDAR, DRV8821DCAR IC
It is difficult to obtain the above material, so we have to supply other IC.
Are there any material that are fully compatible with above material?
