Part Number: DRV421EVM Other Parts Discussed in Thread: DRV421 , DRV425 Hello,
I'm trying to test the idea of measuring a very small current signal through a toroid of some sort. I do not want to use a shunt. The current would be on the order of 5 to…
Sam,
Normally we do not have EVM with a large scale design and we normally only highlight a specific device that would be evaluated.
This is also dependent on where you are measuring the current. if you are measuring on the low side you will always…
Other Parts Discussed in Thread: DRV421EVM , DRV421 Hi,
I observed two problems during testing of DRV421EVM.
1) As shown in below figure if I connect let say S2 (in kit) to CL2 (compensation coil over core) and S1 to CL1, board takes 10mA while on…
Hello Christoph,
There is currently not a core off the self with a slot that fits the DRV421 Evaluation Module. I can help you with the design of the magnetic core and go over your design considerations to meet you needs.
Part Number: DRV401 Other Parts Discussed in Thread: DRV411 , DRV421EVM Dear TI experts,
My customer made a sample PCB using DRV401 but it does not work properly.
Could you review the schematic first?
Customer applied 5V to VCC.
They expected…
Part Number: DRV425EVM Other Parts Discussed in Thread: DRV421EVM
Table 2 in SLOU410A is incorrect. You can tell by examining the traces in Figure 5, or Figure 6, that the pin assignments shown in that table are not correct.
Additional comments: …
Hello Mohamed,
All we have is the DRV421EVM that you can order. This does not include the compensation coil but it does have a Shunt resistor that may need to be adjusted for you current levels.
Hello Holger,
The decision for no EVM I cannot comment on. I would suggest the customer build their own PCB like the DRV421 but keep in mind that the package is different. DRV401 is 5mm x 5mm and the DRV421 is 4mm x 4mm. I would look at the DRV421EVM…
