Other Parts Discussed in Thread: LM74502,
Tool/software:
Hello,
we are currently in the process of designing a BLDC motor controller with an input voltage of 48V and a targeted output power of around 1.5kW. In order to achieve a reverse polarity protection for the motor controller, we are currently looking at the LM74502 or the TPS4800-Q1.
We prefer using the LM74502 because of its simplicity since only reverse polarity protection and inrush current control is required for our application and we do not want any blocking of a potential reverse current. However, because of the maximum input voltage of 65V for the LM74502, we are also considering using the TPS4800-Q1 because of its higher allowable input voltage. In the corresponding datasheet on the first page an application circuit can be found which aligns with our use case.
Would it also be possible to use this device without the overcurrent protection feature, since a separate circuit in the design is responsible for this task? Do you have a reference design/schematic of the TPS4800-Q1 or alternatively could assist us on how to configure this device for the above application such that we can achieve reverse polarity protection with allowable reverse current and inrush current control?
Do you have any alternative suggestions regarding possible controllers for our use case. Note that our application is non-automotive but rather a robotics one.
Any help is greatly appreciated.
Best,
Nikita
