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ISO6731 Datasheet(PDF) 7 Page - Texas Instruments

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Part No. ISO6731
Description  ISO6731 General-Purpose Triple-Channel Digital Isolator with Robust EMC
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

ISO6731 Datasheet(HTML) 7 Page - Texas Instruments

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6.6 Insulation Specifications
PARAMETER
TEST CONDITIONS
VALUE
UNIT
DW-16
CLR
External clearance(1)
Shortest terminal-to-terminal distance through air
>8
mm
CPG
External creepage(1)
Shortest terminal-to-terminal distance across the
package surface
>8
mm
DTI
Distance through the insulation
Minimum internal gap (internal clearance)
>17
um
CTI
Comparative tracking index
DIN EN 60112 (VDE 0303-11); IEC 60112
>600
V
Material group
According to IEC 60664-1
I
Overvoltage category per IEC 60664-1
Rated mains voltage ≤ 600 VRMS
I-IV
Rated mains voltage ≤ 1000 VRMS
I-III
DIN VDE V 0884-11:2017-01 (2)
VIORM
Maximum repetitive peak isolation voltage
AC voltage (bipolar)
1500
VPK
VIOWM
Maximum working isolation voltage
AC voltage; Time dependent dielectric breakdown
(TDDB) Test; See Figure 9-4
1060
VRMS
DC voltage
1500
VDC
VIOTM
Maximum transient isolation voltage
VTEST = VIOTM,
t = 60 s (qualification);
VTEST = 1.2 x VIOTM,
t= 1 s (100% production)
7071
VPK
VIOSM
Maximum surge isolation voltage(3)
Test method per IEC 62368-1, 1.2/50 µs waveform,
VTEST = 1.6 x VIOSM (qualification)
6250
VPK
qpd
Apparent charge(4)
Method a, After Input-output safety test subgroup 2/3,
Vini = VIOTM, tini = 60 s;
Vpd(m) = 1.2 x VIORM, tm = 10 s
≤5
pC
Method a, After environmental tests subgroup 1,
Vini = VIOTM, tini = 60 s;
Vpd(m) = 1.6 x VIORM, tm = 10 s
≤5
Method b; At routine test (100% production) and
preconditioning (type test)
Vini = 1.2 x VIOTM, tini = 1 s;
Vpd(m) = 1.875 x VIORM, tm = 1 s
≤5
CIO
Barrier capacitance, input to output(5)
VIO = 0.4 x sin (2πft), f = 1 MHz
~1
pF
RIO
Isolation resistance(5)
VIO = 500 V, TA = 25°C
>1012
Ω
VIO = 500 V, 100°C ≤ TA ≤ 125°C
>1011
VIO = 500 V at TS = 150°C
>109
Pollution degree
2
Climatic category
40/125/21
UL 1577
VISO
Maximum withstanding isolation voltage
VTEST = VISO , t = 60 s (qualification),
VTEST = 1.2 x VISO , t = 1 s (100% production)
5000
VRMS
(1)
Creepage and clearance requirements should be applied according to the specific equipment isolation standards of an application.
Care should be taken to maintain the creepage and clearance distance of a board design to ensure that the mounting pads of the
isolator on the printed-circuit board do not reduce this distance. Creepage and clearance on a printed-circuit board become equal in
certain cases. Techniques such as inserting grooves and/or ribs on a printed-circuit board are used to help increase these
specifications.
(2)
This coupler is suitable for safe electrical insulation only within the safety ratings. Compliance with the safety ratings shall be ensured
by means of suitable protective circuits.
(3)
Testing is carried out in air or oil to determine the intrinsic surge immunity of the isolation barrier.
(4)
Apparent charge is electrical discharge caused by a partial discharge (pd).
(5)
All pins on each side of the barrier tied together creating a two-terminal device.
www.ti.com
ISO6731
SLASEY9 – JANUARY 2021
Copyright © 2021 Texas Instruments Incorporated
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