ISL32172EFVZ

Question

I have a question about the enable pins for the ISL32172EFVZ chip. Page 14 shows if we need to enable the outputs, we need to put EN = 1 or /EN = 0. To disable, otherwise.

However, page 4 shows this table. Does this table indicate that if EN = 1 , it only activates one output? Could you explain the table to me in a bit more detail? Because we need to have all outputs activated

David · Accepted Answer

The ISL32172 uses the EN (active HIGH) and /EN (active LOW) pins to control the enable/disable state of its Tx outputs . As clearly stated, to enable the outputs, you must ensure that EN = 1 and /EN = 0 . These two pins act together to control all the driver outputs simultaneously&mdash;there is no separate or independent enablement of individual outputs in this device. 
 If you need to enable all outputs, the correct configuration is to set EN = 1 and /EN = 0 . If EN = 0 or /EN = 1 , the outputs will be disabled. Therefore, for the ISL32172, the EN and /EN pins globally control all outputs, and no partial enabling of outputs is possible.

ISL32172EFVZ

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