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TMUX7462F датащи(PDF) 20 Page - Texas Instruments

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номер детали TMUX7462F
подробное описание детали  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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домашняя страница  http://www.ti.com
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TMUX7462F датащи(HTML) 20 Page - Texas Instruments

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7.3 Input and Output Leakage Current under Overvoltage Fault
If any of the source pin voltage goes above the fault supplies (VFP or VFN) by one threshold voltage (VT),
the TMUX7462F's overvoltage protection feature is triggered to turn off the switch under fault, keeping the
fault channel in the high-impedance state. IS(FA) and ID(FA) denotes the input and output leakage current under
overvoltage fault conditions, respectively. The supply (or supplies) can either be in normal operating condition
(Figure 7-3) or abnormal operating condition (Figure 7-4) when the overvoltage fault occurs. The supply (or
supplies) can either be unpowered (VDD= VSS = VFN = VFP = 0 V), floating (VDD= VSS = VFN = VFP = No
Connection), or at any level that is below the undervoltage (UV) threshold during abnormal operating conditions.
Is (FA)
S1
GND
A
GND
VS
IS(FA) / ID(FA)
D1
Is (FA)
S4
GND
A
VS
D4
SW
SW
A
ID (FA)
A
ID (FA)
( |VS| > |VFP + VT| or |VFN - VT| , DR = Floating or VDD)
VDD
VSS
VFP VFN
GND
VD
GND
VD
Figure 7-3. Measurement Setup for Input and Output Leakage Current Under Overvoltage Fault with
Normal Supplies
Is (FA)
S1
VDD
VSS
GND
A
GND
VS
D1
Is (FA)
S4
GND
A
VS
D4
GND
RL
A
ID (FA)
GND
RL
A
ID (FA)
SW
SW
GND
Is (FA)
S1
GND
A
GND
VS
D1
Is (FA)
S4
GND
A
VS
D4
GND
RL
A
ID (FA)
GND
RL
A
ID (FA)
SW
SW
Unpowered
(VDD = VSS = VFN = VFP = 0 V)
N.C.
VFP VFN
VDD
VSS
VFP
Floating
(VDD = VSS = VFN = VFP = N.C.)
VFN
Figure 7-4. Measurement Setup for Input and Output Leakage Current Under Overvoltage Fault with
Unpowered or Floating Supplies
TMUX7462F
SCDS394A – MARCH 2021 – REVISED OCTOBER 2021
www.ti.com
20
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Copyright © 2021 Texas Instruments Incorporated
Product Folder Links: TMUX7462F



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