Part Number: DRV8837 Hello
I use drv8837 on our board.
Our board operates the Motor Linear Actuator. (Motor Model : xydh12)
Our board performs break operation after forward or reverse operation.
When breaking, the motor generates twice as much (about…
Part Number: DRV8837 Engineering: Design a valve drive for a gas meter by using the drive chip DRV8837.
Issue: no output on the control side, but there are waveforms on both ends of the chip-to-motor, as the figure below shows:
The customer would like…
Part Number: DRV8837 Hi team,
Customer is now using magnetic encoder for rotor speed control, but now they don't want to use this any more for the cost. So, they are asking whether do we have other method to measure the speed? For example, the current…
Part Number: DRV8837 Other Parts Discussed in Thread: DRV8838 , , DRV8873-Q1 , Hi,
There are two questions regarding DRV8837/DRV8838 motor driver IC.
1. I did a simple test in LTspice using DRV8837. I set In1 to 0V and IN2 to 3.3V. I expect to see a DC signal…
Part Number: DRV8837
Hello,
We currently use the DRV8837 in the following manner : it is a secondary low-voltage driver for a high-power torque motor. Its purpose is to allow a finer control of the motor current, when the torque needed is low. The DRV8837…
Part Number: DRV8837 Hi,
I have connected nSLEEP, IN1, IN2 to the controller GPIO's. Everything is working fine but when I check the current that my circuit draws when nSLEEP = 0, it shows 1.1mA (exclusive of other peripherals on board). The datasheet…
Part Number: DRV8837 Hello,
I am performing low-side current measurement for the motor fault detection. As shown in the attached image, in left side I was using transistor for motor bridge and 0.1 Ohm resistor for motor current failure detection.
But…
Part Number: DRV8837
Dear team,
May I double confirm with you about below delay time of each mode switch?
Mode Switch
Delay time
Forward to Coast
output disable time: T8
Forward to Brake
output high to low: T12
Reverse to Coast
…
Part Number: DRV8837 Hi
I am working on a large volume project for a client. Due to the FDA approval I need to go into details with the H-Bridge. I have downloaded the newest (and only) PSpice model DRV8837 PSpice Model (Rev. A) "SLVM958A.ZIP (18 KB) - PSpice…
Part Number: DRV8837 Hello,
Is it required to connect a varistor or birectional TVS diode in parallel to motor for protection against high voltage spikes? or does the IC provides protection against inductor current?