6.7 Insulation Specifications (continued)

PARAMETER

TEST CONDITIONS

VALUE

UNIT

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 ≤ 300VRMS

I-III

Rated mains voltage ≤ 600VRMS

I-II

Rated mains voltage ≤ 1000VRMS

I-I

DIN EN IEC60747-17 (VDE 0884-17) (2)

VIORM

Maximum repetitive peak isolation voltage

AC voltage (bipolar)

1159

VPK

VIOWM

Maximum working isolation voltage

AC voltage (sine wave) Time dependent dielectric

breakdown (TDDB) test

820

VRMS

DC voltage

1000

VDC

VIOTM

Maximum transient isolation voltage

VTEST = VIOTM, t = 60s (qualification)

4243

VPK

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

5091

VPK

VIMP

Impulse Voltage (3)

Tested in air, 1.2/50µs waveform per IEC 62368-1

5000

VPK

VIOSM

Maximum surge isolation voltage (4)

Tested in oil (qualification test),

1.2/50µs waveform per IEC 62368-1.

6500

VPK

qpd

Apparent charge (5)

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

= VIOTM, tini = 60s; Vpd(m) = 1.2 × VIORM, tm = 10s

≤ 5

pC

Method a: After environmental tests subgroup 1,

Vini = VIOTM, tini = 60s; Vpd(m) = 1.3 × VIORM, tm =

10s

≤ 5

pC

Method b1: At routine test (100% production), Vini

= 1.2 x VIOTM, tini = 1s; Vpd(m) = 1.5 × VIORM, tm =

1s

≤ 5

pC

CIO

Barrier capacitance, input to output (6)

VIO = 0.4 sin (2πft), f = 1MHz

< 3

pF

RIO

Isolation resistance, input to output (6)

VIO = 500V, TA = 25°C

> 1012

Ω

VIO = 500V, 100°C ≤ TA ≤ 125°C

> 1011

Ω

VIO = 500V at TS = 150°C

> 109

Ω

Pollution degree

2

Climatic category

40/125/21

UL 1577

VISO

Withstand isolation voltage

Withstand isolation voltage

VTEST = VISO , t = 60s (qualification)

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

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 and/or ribs on a printed-circuit board are used to help increase these

specifications.

(2)

This coupler is suitable for basic electrical insulation only within the maximum operating ratings. Compliance with the safety ratings

shall be ensured by means of suitable protective circuits.

(3)

Testing is carried out in air to determine the surge immunity of the package.

(4)

Testing is carried out in oil to determine the intrinsic surge immunity of the isolation barrier

(5)

Apparent charge is electrical discharge caused by a partial discharge (pd).

(6)

All pins on each side of the barrier tied together creating a two-terminal device

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UCC33020

SLUSFK4A – FEBRUARY 2025 – REVISED MAY 2025

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