mc33879a Freescale Semiconductor, Inc, mc33879a Datasheet - Page 18

• Manufacturer Part Number: mc33879a
• Description: Configurable Octal Serial Switch With Open Load Detect Current Disable
• Manufacturer: Freescale Semiconductor, Inc

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33879
FUNCTIONAL DESCRIPTION
SPI DEFINITION
Serial Output (DO) Pin Reports
Device Shutdowns
Overtemperature
Overcurrent
Output ON Open Load Fault
Output OFF Open Load Fault
Overvoltage
Overtemperature
Fault reported by serial output (DO) pin.
DO pin reports short to battery/supply or overcurrent condition.
Not reported.
DO pin reports output OFF open load condition only with Open Load Detection Current enabled.
DO pin will report “0” for Output OFF Open Load Fault with Open Load Detection Current disabled.
Total device shutdown at V
outputs assuming the previous state upon recovery from overvoltage.
Only the output experiencing an overtemperature shuts down. Output assumes previous state upon
recovery from overtemperature.
Table 8. Fault Operation
PWR
= V
PWR(OV)
V. Resumes normal operation with proper voltage. All
Analog Integrated Circuit Device Data
Freescale Semiconductor