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TMUX7348FPWTEP Datasheet(PDF) 32 Page - Texas Instruments

Part # TMUX7348FPWTEP
Description  TMUX7348F-EP ±60V Tolerant, Latch-up Immune, Fault Protected, Enhanced Product, 8:1 Multiplexer with Adjustable Fault Threshold
PDF  54 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TMUX7348FPWTEP Datasheet(HTML) 32 Page - Texas Instruments

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7.10 Fault Flag Response Time
Fault flag response time (tRESPONSE(FLAG)) measures the delay between the source voltage exceeding the fault
supply voltage (VFP or VFN) by 0.5 V and the general fault flag (FF) pin or specific fault flag (SF) pin to go below
10% of its original value. Figure 7-11 shows the setup used to measure tRESPONSE(FLAG).
VS
0 V
tRESPONSE(FLAG)_FP
Output (VXF)
VFP + 0.5 V
SW
Sx
D/ DX
VDD VSS
SW
VFP VFN
GND
VS
GND
CL_xF
GND
VDD
VSS
0.1 µF
GND
SW
0.1 µF
GND
0.1 µF
GND
VFN
0.1 µF
GND
VFP
All other
source
pins
0 V
0.5 V
VS
0 V
tRESPONSE(FLAG)_FN
VFN - 0.5 V
tRESPONSE(FLAG) = max ( tRESPONSE(FLAG)_FP, tRESPONSE(FLAG)_FN)
5 V
Output (VXF)
0.5 V
5 V
0 V
xF
RPU
5V
GND
RL
CL
GND
Output
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 (VFP or VFN) plus 0.5 V and the general fault flag (FF)
pin or the specific fault flag (SF) pin to rise above 3 V with 5 V external pull-up. Figure 7-12 shows the setup
used to measure tRECOVERY(FLAG).
tRECOVERY(FLAG)_FP
Output (VXF)
0 V
3 V
tRECOVERY(FLAG)_FN
tRECOVERY(FLAG) = max ( tRECOVERY(FLAG)_FP, tRECOVERY(FLAG)_FN)
5 V
Output (VXF)
0 V
3 V
5 V
VFP + 0.5 V
0 V
VFN - 0.5 V
0 V
VS
SW
Sx
D/ DX
VDD VSS
SW
VFP VFN
GND
VS
GND
CL_xF
GND
VDD
VSS
0.1 µF
GND
SW
0.1 µF
GND
0.1 µF
GND
VFN
0.1 µF
GND
VFP
All other
source
pins
xF
RPU
5V
GND
RL
CL
GND
Output
Figure 7-12. Fault Flag Recovery Time Measurement Setup
TMUX7348F-EP
SCDS461A – NOVEMBER 2023 – REVISED JANUARY 2025
www.ti.com
32
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Copyright © 2025 Texas Instruments Incorporated
Product Folder Links: TMUX7348F-EP



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