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PIC18F4550 - PWM - Full Bridge mode datasheet errata?

Started by trastikata, Nov 20, 2021, 03:45 PM

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trastikata

Hello all,

I was designing a H-Bridge PWM driver for inverter traf and stumbled across a possible errata in the PIC18F4550 datasheet. Could someone please confirm what I am seeing there  :).

PIC18F4550 Datasheet - PDF Page 157 - FIGURE 16-3: PWM OUTPUT RELATIONSHIPS (ACTIVE-LOW STATE)

In full bridge - reverse mode, the PA1 pin in its inactive states is given as low, which I think should be high? 

PIC18F4550_PWM_ERRATA.jpg

John Drew

You must be right Trastikata, someone made a mistake in the sheet. It's only possible to modulate low from a high. Good spotting.
John