Part Number: DRV8821 I'm trying to work out a problem on the DRV8821 and just read under the features column "Three-Bit Winding Current Control Allows up to Eight Current Levels" is this wrong? I know that you control Ichop using Vref, but is there some…
Part Number: DRV8821 I'm inheriting a card design using the DRV8821 motor driver to open and close a door. The design delivers 1.5A per winding which goes right up against the 1.5A peak threshold and occasionally trips the OCP. I guess this is no surprise…
Part Number: DRV8821 Other Parts Discussed in Thread: DRV8832 , DRV8830 Hi ,
We are working on the stepper motor control and Brushed DC Motor system .
Stepper Motor Control System :
Currently we are evaluating the MCU / controller & stepper motor…
Part Number: DRV8821 We use multiple DRV8821 components in one of our systems and we are evaluating a new motor for use on one of the circuits. The circuit is configured for a maximum of 0.27A by using a 3Ohm resistor (with 100nF cap across it) on the…
Other Parts Discussed in Thread: DRV8821 We have a door controlled by a motor which in turn is controlled by a DRV8821. When power is off, it's possible to open the door fairly quickly and develop a back emf. The H bridge MOSFET body diodes should be…
Other Parts Discussed in Thread: DRV8821 Hi Team,
The customer is using DRV8821. When the customer use two motors at the same time, the fever for the DRV8821 device is very serious. So he decided to use only one motor through the AB channel of DRV8821…
Other Parts Discussed in Thread: DRV8821 Hi, I don't know if this is the right forum or not but it's the only one that seems related.
If an unpowered DRV8821 is connected to a motor and that motor is suddenly mechanically driven (say it's connected…
Other Parts Discussed in Thread: DRV8821 Hi Champs,
I need to clarify for a customer if there is a specified supply voltage rise-time for the DRV8821.
They have problems on the field and found the DRV8821 in a lock up state. After they increased the…
Other Parts Discussed in Thread: DRV8821 , DRV8824EVM Hello all,
I have controlled the NEMA8 stepper motor (0.6A /phase) using IC DRV8821. I am using Arduino Mega 2560 for control. But I don't know how to Brake the stepper immediately after working…
Other Parts Discussed in Thread: DRV8821 , DRV8823 , CONTROLSUITE I need a dual stepper driver like the DRV8821/23. The DVM appear to be based on MSP430 but there is a “Control Suite” and Digital Motor Control (DMC) Libraries that is based on the DSP320C2000…
