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DRV8353R: DRV8353RS OCP使用問題

Part Number: DRV8353R
Other Parts Discussed in Thread: DRV8353

TI的專家您好,

目前使用DRV8353RS遇到一個問題:

1. 依據DRV8353的Datasheet,過電流保護是偵測外部Shunt Resistor的電壓,針對電壓後並沒有將電壓透過內部放大器放大,例如

Shunt Resistor 0.5mohm

輸入電流: 50A

VSENSE = 50A* 0.5m ohm =25mV

SPI設定中SEN_LVL可以選擇感測過電流的電壓0.25V. 0.5V. 0.75V與1V,這樣我的輸入電流要很大,DRV8353才能夠進入硬體過電流保護,這樣的認知對嗎?

如果對的話,DRV8353的硬體保護不就失效了嗎?

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