ISO7841F datasheet(17/31 Pages) TI

17 / 31 page

ISO7841, ISO7841F

www.ti.com

SLLSEM3C – NOVEMBER 2014 – REVISED JULY 2015

8.3.1.2 Insulation Characteristics

PARAMETER(1)

TEST CONDITIONS

SPECIFICATION

UNIT

DTI

Distance through the insulation

Minimum internal gap (internal clearance)

μm

1500

VRMS

VIOWM

Maximum isolation working voltage

Time dependent dielectric breakdown (TDDB) Test

2121

VDC

DIN V VDE V 0884-10 (VDE V 0884-10):2006-12

VTEST = VIOTM

VIOTM

Maximum transient isolation voltage

t = 60 sec (qualification)

8000

VPK

t= 1 sec (100% production)

Test method per IEC 60065, 1.2/50 µs waveform,

VIOSM

Maximum surge isolation voltage

8000

VPK

VTEST = 1.6 x VIOSM = 12800 VPK (qualification)

VIORM

Maximum repetitive peak isolation voltage

2121

VPK

Method a, After Input/Output safety test subgroup

2/3,

2545

VPR = VIORM x 1.2, t = 10 s,

Partial discharge < 5 pC

Method a, After environmental tests subgroup 1,

VPR

Input-to-output test voltage

VPK

VPR = VIORM x 1.6, t = 10 s,

3394

Partial Discharge < 5 pC

Method b1,

VPR = VIORM x 1.875, t = 1 s (100% Production test)

3977

Partial discharge < 5 pC

Isolation resistance

VIO = 500 V at TS

>109

Ω

Pollution degree

UL 1577

VTEST = VISO = 5700 VRMS, t = 60 sec

(qualification),

VISO

Withstanding isolation voltage

5700

VRMS

VTEST = 1.2 x VISO = 6840 VRMS, t = 1 sec (100%

production)

(1)

Climatic Classification 55/125/21

8.3.1.3 IEC 60664-1 Ratings Table

PARAMETER

TEST CONDITIONS

SPECIFICATION

Basic isolation group

Material group

Rated mains voltage

≤ 600 VRMS

I–IV

Installation classification

Rated mains voltage

≤ 1000 VRMS

I–III

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