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ISO6440DFPR bảng dữ liệu(PDF) 28 Page - Texas Instruments

tên linh kiện ISO6440DFPR
Giải thích chi tiết về linh kiện  ISO644x General-Purpose, Basic and Reinforced, Quad-Channel Digital Isolators
PDF  56 Pages
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ISO6440DFPR bảng dữ liệu(HTML) 28 Page - Texas Instruments

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8.5 Device I/O Schematics
INx
VCCI
VCCI
VCCI
≅1M
≅1k
Figure 8-3. Input (INx) Default High (Device Without
F Suffix Device) Schematics
VCCI
≅1M
INx
VCCI
≅1k
Figure 8-4. Input (INx) Default Low (Device With F
Suffix Device) Schematics
ENx
VCCI
VCCI
VCCI
≅1M
≅1k
Figure 8-5. Enable (ENx) Schematics
VCCO
≅33
OUTx
Figure 8-6. Output (OUTx) Schematics
8.6 Overvoltage Tolerant Input
The input pins of this device, INx and ENx, support input signal voltage in excess of the supply voltage (VCCI) on
the input side of the device as long as the voltage on the inputs remains below the voltages listed in the Section
6.3 , and Absolute Maximum Ratings .
This allows the device to support input signal voltages on the inputs when the input supply, VCCI, is unpowered.
In this use case, the outputs transition to the default output state when the input side no longer has a valid
supply.
These inputs also provide the capability of the inputs to down translate input signal voltages up to the VIMAX in
the Section 6.3 . For example, an input signal 5V high-level can be used while VCCI is operating a 3.3V.
ISO6440, ISO6441, ISO6442
SLLSG01B – SEPTEMBER 2024 – REVISED NOVEMBER 2025
www.ti.com
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Product Folder Links: ISO6440 ISO6441 ISO6442



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