6.6 Insulation Specification
over operating ambient temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS VALUE UNIT
GENERAL
CLR External clearance
(1)
Shortest terminal-to-terminal distance through air
≥ 8.5
mm
CPG External creepage
(1)
Shortest terminal-to-terminal distance across the package
surface
≥ 8.5
mm
DTI Distance through the insulation
Minimum internal gap (internal clearance) of the double
isolation (2 x 0.0105 mm)
≥ 0.021
mm
CTI Comparative tracking index DIN EN 60112 (VDE 0303-11); IEC 60112
≥ 600
V
Material group According to IEC 60664-1 I
Overvoltage category
Rated mains voltage ≤ 600 V
RMS
I -IV
Rated mains voltage ≤ 1000 V
RMS
I-III
DIN V VDE 0884-11 (VDE V 0884-11): 2017-01
(2)
V
IORM
Maximum repetitive peak
isolation voltage
AC voltage 2121 V
PK
V
IOWM
Maximum isolation working
voltage
AC voltage (sine wave) 1500 V
RMS
DC voltage 2121 V
DC
V
IOTM
Maximum transient isolation
voltage
V
TEST
= V
IOTM
, t = 60 s (qualification test) 7071 V
PK
V
TEST
= V
IOTM
, t = 1 s (100% production test) 8485 V
PK
V
IOSM
Maximum surge isolation
voltage
(1)
Test method per IEC 60065, 1.2/50 µs waveform, V
TEST
= 1.6 ×
V
IOSM
= 12800 V
PK
(qualification)
8000 V
PK
q
pd
Apparent charge
(3)
Method a: After I/O safety test subgroup 2/3, V
ini
= V
IOTM
, t
ini
=
60 s; V
pd(m)
= 1.2 × V
IORM
= 2545 V
PK
, t
m
= 10 s
≤ 5
pC
Method a: After environmental tests subgroup 1, V
ini
= V
IOTM
,
t
ini
= 60 s; V
pd(m)
= 1.6 × V
IORM
= 3394 V
PK
, t
m
= 10 s
≤ 5
Method b1: At routine test (100% production) and
preconditioning (type test), V
ini
= V
IOTM
, t
ini
= 1 s; V
pd(m)
= 1.875
× V
IORM
= 3977 V
PK
, t
m
= 1 s
≤ 5
C
IO
Barrier capacitance, input to
output
(4)
V
IO
= 0.4 × sin (2 πft), f = 1 MHz
~1.5 pF
R
IO
Insulation resistance, input to
output
(4)
V
IO
= 500 V, T
A
= 25°C > 10
12
Ω
V
IO
= 500 V, 100°C ≤ T
A
≤ 125°C
> 10
11
V
IO
= 500 V at T
S
= 150°C > 10
9
Pollution degree 2
Climatic category 55/125/21
UL 1577
V
ISO
Withstand isolation voltage
V
TEST
= V
ISO
= 5000 V
RMS
, t = 60 s (qualification), V
TEST
= 1.2
× V
ISO
= 6000 V
RMS
, t = 1 s (100% production)
5000 V
RMS
(1) Creepage and clearance requirements should be applied according to the specific equipment isolation standards of an application.
Care must 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, ribs, or both 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) Apparent charge is electrical discharge caused by a partial discharge (pd).
(4) All pins on each side of the barrier tied together creating a two-pin device.
AMC1302
ZHCSIF3D – JUNE 2018 – REVISED JUNE 2021
www.ti.com.cn
6 Submit Document Feedback
Copyright © 2021 Texas Instruments Incorporated
Product Folder Links: AMC1302