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MCP19124 Datasheet(PDF) 151 Page - Microchip Technology |
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MCP19124 Datasheet(HTML) 151 Page - Microchip Technology |
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151 / 236 page  2016 Microchip Technology Inc. DS20005619A-page 151 MCP19124/5 26.0 PWM CONTROL LOGIC The PWM Control Logic implements standard comparator modules to identify events such as input undervoltage, input overvoltage and desaturation detection. The control logic takes action in hardware to appropriately enable/disable the output drive (PDRV/SDRV), as well as to set corresponding interrupt flags to be read by software. This control logic also defines normal PWM operation. For definition of individual bits within the control logic, refer to the Special Function Register (SFR) sections. FIGURE 26-1: PWM CONTROL LOGIC SDRVEN PDRVEN OVLOINTP OVLOINTN OVLOIF UVLOINTP UVLOINTN UVLOIF UVLOEN OVLO OVLOEN DELAY DELAY SDRV PDRV OVINTP OVINTN OVIF + - D EN Q OVOUT OV Q1 OVEN PWM PWMSTR_SEN PWM PWMSTR_PEN + - DESATP DESATN MUX DEFAULT TO DESATP BG CDSPOL CDSINTP CDSINTN CDSIF D EN Q CDSOUT Q1 PWM CDSOE CDSWDE WDM_RESET S Vs OV_REF D EN Q D EN Q Q1 UVLOOUT Q1 OVLOOUT CDSMUX UVLO S + - E/AOUT Ip DRUVIF OTIF TMPTBY + - VDRUVLO + - OT VDRUVBY S R Q ONE SHOT SDRV_ON ONE SHOT 200 ns 33 ns SDRV_ON |
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