ISO7641FC datasheet(17/31 Pages) TI

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ISO7631FM, ISO7631FC

ISO7640FC, ISO7641FC

www.ti.com

SLLSEC3A – SEPTEMBER 2012 – REVISED SEPTEMBER 2012

DEVICE INFORMATION

IEC INSULATION AND SAFETY-RELATED SPECIFICATIONS FOR DW-16 PACKAGE

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

L(I01)

Minimum air gap (Clearance)

Shortest terminal to terminal distance through air

8.3

Minimum external tracking

Shortest terminal to terminal distance across the

L(I02)(1)

8.1

(Creepage)

package surface

Tracking resistance (Comparative

CTI

DIN IEC 60112 / VDE 0303 Part 1

≥400

Tracking Index)

Minimum Internal Gap (Internal

Distance through the insulation

0.014

Clearance)

VIO = 500 V, TA < 100°C

>1012

Isolation resistance, Input to

RIO

(2)

Output

VIO = 500 V, 100°C ≤ TA ≤ max

>1011

Barrier capacitance, Input to

VI = 0.4 sin (2πft), f = 1MHz

CIO

(2)

Output

(3)

Input capacitance

VI = VCC/2 + 0.4 sin (2πft), f = 1MHz, VCC = 5 V

(1)

Per JEDEC package dimensions.

(2)

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

(3)

Measured from input pin to ground.

spacer

NOTE

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 according to the

measurement techniques shown in the Isolation Glossary. Techniques such as inserting

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

specifications.

Table 2. DIN EN 60747-5-2 (VDE 0884 TEIL 2) INSULATION CHARACTERISTICS(1)

over recommended operating conditions (unless otherwise noted)

PARAMETER

TEST CONDITIONS

SPECIFICATION

UNIT

VIORM

Maximum working insulation voltage

1414

VPEAK

After Input/Output safety test subgroup 2/3,

VPR = VIORM x 1.2, t = 10 s,

1697

Partial discharge < 5 pC

Method a, After environmental tests subgroup 1,

VPR

Input-to-output test voltage

VPR = VIORM x 1.6, t = 10 s,

2262

VPEAK

Partial Discharge < 5 pC

Method b1, 100% Production test

VPR = VIORM x 1.875, t = 1 s

2652

Partial discharge < 5 pC

VTEST = VIOTM

VIOTM

Maximum transient overvoltage

t = 60 sec (Qualification)

4000

VPEAK

t = 1 sec (100% Production)

Insulation resistance

VIO = 500 V at TS

>109

Ω

Pollution degree

(1)

Climatic Classification 40/125/21

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