TMUX7436FPWR datasheet(30/50 Pages) TI2

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0 V

tRESPONSE(FLAG)_VDD

VFF

VDD + 0.5 V

0 V

0.5 V

0 V

tRESPONSE(FLAG)_VSS

VFN - 0.5 V

tRESPONSE(FLAG) = max ( tRESPONSE(FLAG)_VDD, tRESPONSE(FLAG)_VSS)

5 V

VFF

0.5 V

5 V

0 V

CL_xF

GND

RPU

5 V

VDD

VSS

VDD

VSS

0.1 µF

S1A

GND

Output

S1B

S2A

Output

S2B

SF/FF

Figure 7-11. Fault Flag Response Time Measurement Setup

7.11 Fault Flag Recovery Time

Fault flag recovery time (tRECOVERY(FLAG)) measures the delay between the source voltage falling from

overvoltage condition to below fault supply voltage (VDD or VSS) plus 0.5 V and the general fault flag (FF)

pin to rise above 3 V with 5 V external pull-up. Figure 7-12 shows the setup used to measure tRECOVERY(FLAG).

CL_xF

GND

RPU

5 V

VDD

VSS

VDD

VSS

0.1 µF

S1A

GND

Output

S1B

S2A

Output

S2B

SF/FF

tRECOVERY(FLAG)_VDD

VFF

0 V

3 V

tRECOVERY(FLAG)_VSS

tRECOVERY(FLAG) = max ( tRECOVERY(FLAG)_VDD, tRECOVERY(FLAG)_VSS)

5 V

0 V

3 V

5 V

VDD + 0.5 V

0 V

VDD - 0.5 V

0 V

VFF

Figure 7-12. Fault Flag Recovery Time Measurement Setup

TMUX7436F

SCDS459A – OCTOBER 2022 – REVISED NOVEMBER 2022

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