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ISO7221CDG4 Datasheet(PDF) 11 Page - Texas Instruments

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Part # ISO7221CDG4
Description  DUAL DIGITAL ISOLATORS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

ISO7221CDG4 Datasheet(HTML) 11 Page - Texas Instruments

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DEVICE INFORMATION
IEC PACKAGE CHARACTERISTICS
IEC 60664-1 RATINGS TABLE
IEC 60747-5-2 INSULATION CHARACTERISTICS
(1)
ISO7220A, ISO7220C, ISO7220M
ISO7221A, ISO7221C, ISO7221M
SLLS755F – JULY 2006 – REVISED AUGUST 2007
PARAMETER
TEST CONDITIONS
MIN
TYP MAX
UNIT
L(I01)
Minimum air gap (Clearance)
Shortest terminal-to-terminal distance through air
4.8
mm
SOIC-8
L(I02)
Minimum external tracking
Shortest terminal-to-terminal distance across the
4.3
mm
(Creepage)
package surface
CTI
Tracking resistance (Comparative
DIN IEC 60112 / VDE 0303 Part 1
≥175
V
Tracking Index)
Minimum Internal Gap (Internal
Distance through the insulation
0.008
mm
Clearance)
Input to output, VIO = 500 V, all pins on each side of the
barrier tied together creating a two-terminal device,
>1012
RIO
Isolation resistance
TA < 100°C
Input to output, VIO = 500 V, 100°C ≤ TA ≤ max
>1011
CIO
Barrier capacitance Input to output
VI = 0.4 sin (4E6πt)
1
pF
CI
Input capacitance to ground
VI = 0.4 sin (4E6πt)
1
pF
NOTE: 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 according to the measurement techniques
shown in the Isolation Glossary. Techniques such as inserting grooves and/or ribs on a printed circuit board are
used to help increase these specifications.
PARAMETER
TEST CONDITIONS
SPECIFICATION
Basic isolation group
Material group
IIIa
Rated mains voltage
≤150 VRMS
I-IV
Installation classification
Rated mains voltage
≤300 VRMS
I-III
Rated mains voltage
≤400 VRMS
I-II
PARAMETER
TEST CONDITIONS
SPECIFICATION
UNIT
VIORM
Maximum working insulation
560
voltage
Method b1, VPR = VIORM × 1.875,
V
VPR
Input to output test voltage
1050
100% Production test with t = 1 s, Partial discharge <5 pC
VIOTM
Transient overvoltage
t = 60 s
4000
RS
Insulation resistance
VIO = 500 V at TS
>109
Pollution degree
2
(1)
Climatic Classification 40/125/21
11
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