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ISO1540-Q1, ISO1541-Q1

SLLSEX0 – NOVEMBER 2016

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Product Folder Links: ISO1540-Q1 ISO1541-Q1

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Copyright © 2016, Texas Instruments Incorporated

(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)

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-terminal device

6.6 Insulation Specifications

PARAMETER

TEST CONDITIONS

VALUE

UNIT

GENERAL

CLR

Shortest terminal-to-terminal distance through air

>4

mm

CPG

Shortest terminal-to-terminal distance across the

package surface

>4

mm

DTI

Distance through the insulation

Minimum internal gap (internal clearance)

0.014

mm

CTI

Comparative tracking index

DIN EN 60112 (VDE 0303-11); IEC 60112

>400

V

Material group

II

Overvoltage category

Rated mains voltage

I–IV

Rated mains voltage

I–III

Maximum repetitive peak isolation voltage AC voltage (bipolar)

566

Maximum transient isolation voltage

t = 60 s (qualification)

t = 1 s (100% production)

4242

= 10 s

<5

pC

Method a: After environmental tests subgroup 1,

<5

Method b1: At routine test (100% production) and

<5

~1

pF

Ω

Pollution degree

2

Climatic category

40/125/21

UL 1577

Withstand isolation voltage

production)

2500