Problems with the half-bridge driver chip DRV8906

shaorc

Problems with the half-bridge driver chip DRV8906 [Copy link]

The figure shows the functional module diagram of the half-bridge driver chip DRV8906. In the datasheet, it is pointed out that the maximum continuous sink current value of all output channels (Gnd pins combined) of the chip is 6A.

However, the recommended parameter diagram shows that the maximum current of the output channel push-pull output is only 5mA.

How to understand these two parameters?

maychang

The first table is Absolute Maximum Ratings, the maximum allowed values. The second table is Reconnended Operting Conditions, which are recommended.

However, I think the 5mA in the last table of the datasheet is a mistake.

led2015

These two parameters reflect the current capability of the DRV8906 chip in different operating modes and output modes.