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ISO7841FDWWR 数据表(PDF) 21 Page - Texas Instruments

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部件名 ISO7841FDWWR
功能描述  High-Performance, 8000-VPK Reinforced Quad-Channel Digital Isolator
PDF  37 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

ISO7841FDWWR 数据表(HTML) 21 Page - Texas Instruments

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Input (Device Without Suffix F)
Output
Enable
OUTx
VCCO
~20 W
INx
1.5 MW
985 W
Input (Device With Suffix F)
VCCI
VCCI
VCCI
INx
1.5 MW
985 W
VCCI
VCCI
VCCI VCCI
Enx
2 MW
1970 W
VCCO
VCCO
VCCO VCCO
Copyright © 2016, Texas Instruments Incorporated
21
ISO7841, ISO7841F
www.ti.com
SLLSEM3F – NOVEMBER 2014 – REVISED APRIL 2016
Product Folder Links: ISO7841 ISO7841F
Submit Documentation Feedback
Copyright © 2014–2016, Texas Instruments Incorporated
(1)
VCCI = Input-side VCC; VCCO = Output-side VCC; PU = Powered up (VCC ≥ 2.25 V); PD = Powered down (VCC ≤ 1.7 V); X = Irrelevant; H
= High level; L = Low level ; Z = High Impedance
(2)
A strongly driven input signal can weakly power the floating VCC through an internal protection diode and cause undetermined output.
(3)
The outputs are in undetermined state when 1.7 V < VCCI, VCCO < 2.25 V.
8.4 Device Functional Modes
Table 7 lists the ISO7841 functional modes.
Table 7. Function Table(1)
VCCI
VCCO
INPUT
(INx)(2)
OUTPUT
ENABLE
(ENx)
OUTPUT
(OUTx)
COMMENTS
PU
PU
H
H or open
H
Normal Operation:
A channel output assumes the logic state of its input.
L
H or open
L
Open
H or open
Default
Default mode: When INx is open, the corresponding channel output goes to
its default logic state. Default= High for ISO7841 and Low for ISO7841F.
X
PU
X
L
Z
A low value of Output Enable causes the outputs to be high-impedance
PD
PU
X
H or open
Default
Default mode: When VCCI is unpowered, a channel output assumes the logic
state based on the selected default option. Default= High for ISO7841 and
Low for ISO7841F.
When VCCI transitions from unpowered to powered-up, a channel output
assumes the logic state of its input.
When VCCI transitions from powered-up to unpowered, channel output
assumes the selected default state.
X
PD
X
X
Undetermined
When VCCO is unpowered, a channel output is undetermined
(3).
When VCCO transitions from unpowered to powered-up, a channel output
assumes the logic state of its input
8.4.1 Device I/O Schematics
Figure 17. Device I/O Schematics



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