ISO1640BDR datasheet(9/46 Pages) TI

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6.6 Insulation Specifications

PARAMETER

TEST CONDITIONS

SPECIFICATIONS

UNIT

IEC 60664-1

CLR

External clearance(1)

Side 1 to side 2 distance through air

CPG

External Creepage(1)

Side 1 to side 2 distance across package

surface

DTI

Distance through the insulation

Minimum internal gap (internal clearance)

>17

µm

CTI

Comparative tracking index

IEC 60112; UL 746A

>600

>400

Material Group

According to IEC 60664-1

Overvoltage category

Rated mains voltage ≤ 150 VRMS

I-IV

Rated mains voltage ≤ 300 VRMS

I-IV

I-III

Rated mains voltage ≤ 600 VRMS

I-IV

n/a

Rated mains voltage ≤ 1000 VRMS

I-III

n/a

DIN V VDE V 0884-11:2017-01(2)

VIORM

Maximum repetitive peak isolation voltage

AC voltage (bipolar)

2121

637

VPK

VIOWM

Maximum isolation working voltage

AC voltage (sine wave); time-dependent

dielectric breakdown (TDDB) test;

1500

450

VRMS

DC voltage

2121

637

VDC

VIOTM

Maximum transient isolation voltage

VTEST = VIOTM , t = 60 s (qualification); VTEST

= 1.2 × VIOTM, t = 1 s (100% production)

7071

4242

VPK

VIOSM

Maximum surge isolation voltage(3)

Test method per IEC 62368-1, 1.2/50 µs

waveform, VTEST = 1.3 × VIOSM = 6,500 VPK

(Basic qualification) Test method per IEC

62368-1, 1.2/50 µs waveform, VTEST = 1.6 ×

VIOSM = 10,000 VPK (Reinforced qualification)

6250

5000

VPK

qpd

Apparent charge(4)

Method a: After I/O safety test subgroup 2/3,

Vini = VIOTM, tini = 60 s; Vpd(m) = 1.2 × VIORM ,

tm = 10 s

≤ 5

Method a: After environmental tests subgroup

1, Vini = VIOTM, tini = 60 s;

Vpd(m) = 1.6 × VIORM , tm = 10 s

≤ 5

Method b1: At routine test (100% production)

and preconditioning (type test), Vini = VIOTM,

tini = 1 s;

Vpd(m) = 1.875 × VIORM , tm = 1 s

≤ 5

CIO

Barrier capacitance, input to output(5)

VIO = 0.4 × sin (2 πft), f = 1 MHz

RIO

Insulation resistance, input to output(5)

VIO = 500 V, TA = 25°C

> 1012

VIO = 500 V, 100°C ≤ TA ≤ 150°C

> 1011

VIO = 500 V at TS = 150°C

> 109

Pollution degree

Climatic category

40/125/

UL 1577

VISO

Withstand isolation voltage

VTEST = VISO , t = 60 s (qualification); VTEST =

1.2 × VISO , t = 1 s (100% production)

5000

3000

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, ribs, or both on a printed circuit board are used to help increase these

specifications.

(2)

ISO164xDW is suitable for safe electrical insulation and ISO164xBD is suitable for basic 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.

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ISO1640, ISO1641, ISO1644

SLLSFC2C – MAY 2021 – REVISED JUNE 2021

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