Part Number: DRV8840 Dear Specialists,
The customer is considering DRV8840 and has questions.
I would be grateful if you could advise.
• What is the state of nFAULT while nRESET is low?
Is it in a high impedance state?
• If the error condition…
Part Number: DRV8840
1. The DRV8840 chip has no voltage output, and the power supply voltage is 24V 2. This has never happened before 3. Tested that each control port signal is normal 4. There are about 10 broken pieces
Part Number: DRV8840 Hello, I have some concerns about my circuit with DRV8840 driver. In design I don't have any MCU, only logic based on simple circuits and gates. M otor is BDC combined with gearhead (~200:1). So I'm using chopping current to limit…
Part Number: DRV8840 Hi team,
Here's an issue from the customer may need your help:
The device outputs and connects 104 capacitors on OUT1, OUT2, drives at 25 KHz, 80% duty cycle, circuit around 1A. Why the chip would have abnormal heat condition…
Part Number: DRV8840 Hello Team,
I'd like to confirm about DRV8840. In the DS, VCP cap value is recommended as a 16V ceramic cap.
I'm assuming that VCP-VM voltage is around 10V. Therefore 16V is recommended with margin?
Thank you,
Kauzki Kita…
Part Number: DRV8840 Hi
I want to use DRV8840 to control LED
when out1 out2 are H,L ,it turns on red
when out1 out2 are L,H ,it turns on green
the logic is control by pharse pin
but what is the max frequency the phase pin can receive the change…
Part Number: DRV8840 Other Parts Discussed in Thread: , DRV8412 Hello guys,
One of my customers is evaluating DRV8840 on their own PCB for their new products.
In the evaluation, they observed a big overshoot at ISEN pin when DRV8840 is turned on.…
Part Number: DRV8840 Hi team,
Does DRV8840 have shoot-through protection circuit for H-bridge? If you have any explanatory materials on this, could you let me know? Also, if you have dead time information, could you let me know?
Regards,
Yamagu…
Part Number: DRV8840 Hi Team,
The customer is experiencing below issue and needs your help.
PIN3 VCP should be configured as shown in the manual.
But the design is wrong, but it works. What is the reason? Is there a risk?
