The ISO7220 and ISO7221 are dual-channel digital isolators

ISO7221C-Q1

Manufacturer Part NumberISO7221C-Q1
DescriptionThe ISO7220 and ISO7221 are dual-channel digital isolators
ManufacturerTexas Instruments
ISO7221C-Q1 datasheet
 


Specifications of ISO7221C-Q1

Operating Temperature Range(c)-40 to 125Pin/package8SOIC
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IEC PACKAGE CHARACTERISTICS
PARAMETER
L(I01)
Minimum air gap (clearance)
Shortest terminal-to-terminal distance through air
Minimum external tracking
Shortest terminal-to-terminal distance across the
L(I02)
(creepage)
package surface
Tracking resistance
CTI
DIN IEC 60112 / VDE 0303 Part 1
(comparative tracking index)
Minimum internal gap (internal
Distance through the insulation
clearance)
Input to output, V
tied together creating a two-terminal device, T
R
Isolation resistance
IO
Input to output, V
C
Barrier capacitance input to
IO
V
output
C
Input capacitance to ground
V
I
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.
IEC 60664-1 RATINGS TABLE
PARAMETER
Basic isolation group
Installation classification
IEC 60747-5-2 INSULATION CHARACTERISTICS
PARAMETER
V
Maximum working insulation voltage
IORM
V
Input to output test voltage
PR
V
Transient overvoltage
IOTM
R
Insulation resistance
S
Pollution degree
(1) Climatic Classification 40/125/21
Copyright © 2009–2010, Texas Instruments Incorporated
Product Folder Link(s):
DEVICE INFORMATION
TEST CONDITIONS
= 500 V, all pins on each side of the barrier
IO
= 500 V, 100°C ≤ T
≤ max
IO
A
= 0.4 sin (4E6pt)
I
= 0.4 sin (4E6pt)
I
TEST CONDITIONS
Material group
Rated mains voltage ≤150 VRMS
Rated mains voltage ≤300 VRMS
Rated mains voltage ≤400 VRMS
(1)
TEST CONDITIONS
Method b1, V
= V
× 1.875,
PR
IORM
100% Production test with t = 1 s,
Partial discharge <5 pC
t = 60 s
V
= 500 V at T
IO
S
ISO7220A-Q1 ISO7221A-Q1 ISO7221C-Q1
ISO7220A-Q1
ISO7221A-Q1
ISO7221C-Q1
SLLS965B – JULY 2009 – REVISED MARCH 2010
MIN
TYP
MAX
4.8
SOIC-8
4.3
≥175
0.008
12
>10
< 100°C
A
11
>10
1
1
SPECIFICATION
IIIa
I-IV
I-III
I-II
SPECIFICATION
560
1050
4000
9
>10
2
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UNIT
mm
mm
V
mm
pF
pF
UNIT
V
V
V
9