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TMUX7462F 数据表(PDF) 21 Page - Texas Instruments

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部件名 TMUX7462F
功能描述  TMUX7462F 짹60 V Fault-Protected, Latch-Up Immune, Quad Channel Protector with Adjustable Fault Threshold and 1.8-V Logic
PDF  37 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TMUX7462F 数据表(HTML) 21 Page - Texas Instruments

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7.4 Fault Response Time
Fault response time (tRESPONSE) measures the delay between the source voltage exceeding the fault supply
voltage (VFP or VFN) by 0.5V and the drain voltage failing to 90% of the fault supply voltage exceeded. Figure 7-5
shows the setup used to measure tRESPONSE.
VS
0 V
tRESPONSE (FP)
Output
VFP + 0.5 V
0 V
Output × 90%
VFP
VS
0 V
tRESPONSE (FN)
Output
VFN - 0.5 V
0 V
Output × 90%
VFN
tRESPONSE = max ( tRESPONSE(FP), tRESPONSE(FN))
GND
RL
VS
GND
CL
GND
Sx
GND
GND
Dx
All other source &
drain pins
SW
Output
VDD VSS
VFP VFN
VDD
VSS
0.1 µF
GND
0.1 µF
GND
0.1 µF
GND
VFN
0.1 µF
GND
VFP
60V/µs
ramp
60V/µs
ramp
Max positive fault
Max negative fault
Figure 7-5. Fault Response Time Measurement Setup
7.5 Fault Recovery Time
Fault recovery time (tRECOVERY) 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 drain voltage rising from 0V to 50%
of the fault supply voltage exceeded. Figure 7-6 shows the setup used to measure tRECOVERY.
VS
tRECOVERY (FP)
Output
VFP + 0.5 V
0 V
VFP × 0.5
Output
0 V
tRECOVERY = max ( tRECOVERY(FP), tRECOVERY(FN))
0 V
VFN - 0.5 V
0 V
VFN × 0.5
tRECOVERY (FN)
VS
GND
RL
VS
GND
CL
GND
Sx
GND
GND
Dx
All other
source &
drain pins
SW
Output
VDD VSS
VFP VFN
VDD
VSS
0.1 µF
GND
0.1 µF
GND
0.1 µF
GND
VFN
0.1 µF
GND
VFP
VFP - 2 V
VFN + 2 V
Figure 7-6. Fault Recovery Time Measurement Setup
www.ti.com
TMUX7462F
SCDS394A – MARCH 2021 – REVISED OCTOBER 2021
Copyright © 2021 Texas Instruments Incorporated
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Product Folder Links: TMUX7462F



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