STISO620TR datasheet(6/20 Pages) STMICROELECTRONICS

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Isolation characteristics

Table 5. Isolation specifications

Parameter

Symbol

Conditions

Value

Unit

Clearance

(Minimum external air gap )

CLR

Measured from input terminals to output terminals,

shortest distance through air

Creepage

(Minimum external tracking)

CPG

Measured from input terminals to output terminals,

shortest distance path along body

Comparative Tracking Index

(Tracking resistance)

CTI

DIN IEC 112/VDE 0303 Part 1

≥ 400

Isolation Group

Material Group

(DIN VDE 0110, 1/89, Table 1)

Table 6. Isolation characteristics

Parameter

Symbol

Test Conditions

Characteristic

Unit

Maximum working isolation voltage

VIORM

1200

VPEAK

Input to output test voltage

VPR

Method a, Type test (1)

VPR = VIORM × 1.6, tm= 10 s

Partial discharge < 5 pC

1920

VPEAK

Method b, 100 % Production test (1)

VPR = VIORM × 1.875, tm = 1 s

Partial discharge < 5 pC

2250

VPEAK

Isolation withstand voltage

VISO

1min (Type test) (2)

2830/4000

Vrms /VPEAK

Isolation test voltage

VISOtest 1sec (100% production) (2)

3395/4800

Vrms /VPEAK

Transient overvoltage

(Highest allowable overvoltage)

VIOTM

tini= 60 s

Type test (1)

4000

VPEAK

Maximum surge isolation voltage

VIOSM

Type test (1)

4000

VPEAK

Isolation resistance

RIO

VIO = 500 V at TS

>109

Ω

1. Test performed in accordance with IEC 60747-5-2

2. Test performed in accordance with UL 1577

STISO620

Isolation characteristics

DS14110 - Rev 2

page 6/20

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