ISO1540 datasheet(8/21 Pages) TI1

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ISO1540

ISO1541

SLLSEB6 – JULY 2012

www.ti.com

DEVICE INFORMATION

Table 2. IEC INSULATION AND SAFETY-RELATED SPECIFICATION FOR D-8 PACKAGE

Over recommended operating conditions, unless otherwise noted

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Shortest terminal-to-terminal distance

L(I01)

Minimum air gap (Clearance)

4.8

through air

Minimum external tracking

Shortest terminal-to-terminal distance

L(I02)

4.3

(Creepage)

across the 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

output(1)

VIO = 500 V, 100°C ≤ TA

>1011

Barrier capacitance, input to

CIO

VIO = 0.4 x sin(2E6πt)

output(1)

Input capacitance(2)

See Electrical Characteristics

(1)

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

(2)

Measured from input pin to ground.

spacer

NOTE

Creepage and clearance requirements should be applied according to the specific

application isolation standards. Care should be taken to maintain these distances on a

board design to ensure that the mounting pads for the isolator do not reduce this distance.

Creepage and clearance on the printed-circuit board become equal in certain cases.

Techniques such as inserting grooves and/or ribs on the printed circuit board are used to

help increase these specifications.

Table 3. IEC 60747-5-2 INSULATION CHARACTERISTICS(1)

Over recommended operating conditions, unless otherwise noted

PARAMETER

TEST CONDITIONS

SPECIFICATION

UNIT

Maximum working insulation

VIORM

566

voltage

Method a, After environmental tests subgroup 1,

VPR = VIORM x 1.6, t = 10 sec,

906

Partial Discharge < 5 pC

Method b1, After environmental tests subgroup 1,

Input-to-Output test voltage per IEC

VPR

VPR = VIORM x 1.875, t = 1 sec (100% production),

1062

60747-5-2

VPEAK

Partial Discharge < 5 pC

After Input/Output safety test subgroup 2/3,

VPR = VIORM x 1.2, t = 10 sec,

680

Partial Discharge < 5 pC

VTEST = VOITM

Transient overvoltage per IEC

VIOTM

t = 60 sec (qualification)

4000

60747-5-2

t = 1 sec (100% production)

Insulation resistance

VIO = 500 V at TS

>109

Pollution degree

(1)

Climatic Classification 40/125/21

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