Table 11. Insulation and safety-related specifications

Symbol

Parameter

Test conditions

Value Unit

CLR(1)

Clearance (minimum external air gap)

Measured from input terminals to output terminals,

shortest distance through air

2.6

mm

CPG

(1)

Creepage (minimum external tracking)

Measured from input terminals to output terminals,

shortest distance path along body

2.6

mm

CTI(2)

Comparative tracking index (tracking

resistance)

≥400

V

Isolation group

Material group

II

-

1. Creepage and clearance requirements should be applied according to the specific equipment isolation standard 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 PCB do not reduce this distance.

2. When high voltage is applied across the isolator, electric discharges on or close to the surface of the package, can cause

localized deterioration in the mold compound, resulting in a partially conducting path from one side of the isolator to the

other. This phenomenon is called tracking. The ability of a material to withstand tracking is quantified by a comparative

tracking index (CTI). Using a mold compound with a higher CTI allows the use of smaller packages and saves board space.

Table 12. Insulation characteristics

Symbol

Parameter

Test condition

Value

Unit

In accordance with IEC 60747-17

VPR

Input-to-output test voltage

Method a, type test,

tm = 10 s

partial discharge < 5 pC

1500

VPEAK

Method b, 100% production test,

tm = 1 s

partial discharge < 5 pC

1758

VPEAK

VIOTM

Transient overvoltage

Type test; tini = 60 s

3537

VPEAK

VIOSM

Maximum surge insulation voltage

Type test

3537

VPEAK

RIO

Insulation resistance

Type test

VIO = 500 V, TSTG = 60 s

>109

Ω

UL1577

VISO

Insulation withstand voltage

1 min. type test

2000/2830

VRMS/VPEAK

VISO test Insulation withstand test

1 s 100% production

2500/3537

VRMS/VPEAK

Common Mode Transient Immunity

dVISO/dt

CMTI

Type test at VCM = 500 V

±25

V/ns

ISO808, ISO808-1

Electrical characteristics

DS14169 - Rev 1

page 13/38