AMC3301 datasheet(6/37 Pages) TI

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6.6 Insulation Specifications

over operating ambient temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

VALUE

UNIT

GENERAL

CLR

External clearance (1)

Shortest pin-to-pin distance through air

≥ 8

CPG

External creepage (1)

Shortest pin-to-pin distance across the package surface

≥ 8

DTI

Distance through the insulation

Minimum internal gap (internal clearance - capacitive signal

isolation)

≥ 21

µm

Minimum internal gap (internal clearance - transformer power

isolation)

≥ 120

CTI

Comparative tracking index

DIN EN 60112 (VDE 0303-11); IEC 60112

≥ 600

Material group

According to IEC 60664-1

Overvoltage category

per IEC 60664-1

Rated mains voltage ≤ 600 VRMS

I-IV

Rated mains voltage ≤ 1000 VRMS

I-III

DIN VDE V 0884-11 (VDE V 0884-11): 2017-01(2)

VIORM

Maximum repetitive peak

isolation voltage

At AC voltage (bipolar)

1700

VPK

VIOWM

Maximum-rated isolation

working voltage

At AC voltage (sine wave); time-dependent dielectric

breakdown (TDDB) test

1200

VRMS

At DC voltage

1700

VDC

VIOTM

Maximum transient

isolation voltage

VTEST = VIOTM, t = 60 s (qualification test)

6000

VPK

VTEST = 1.2 × VIOTM, t = 1 s (100% production test)

7200

VPK

VIOSM

Maximum surge

isolation voltage(3)

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

VTEST = 1.6 × VIOSM = 10000 VPK (qualification)

6250

VPK

qpd

Apparent charge(4)

Method a, after input/output safety test subgroup 2 / 3,

Vini = VIOTM, tini = 60 s, Vpd(m) = 1.2 × VIORM, tm = 10 s

≤ 5

Method a, after environmental tests subgroup 1,

Vini = VIOTM, tini = 60 s, Vpd(m) = 1.6 × VIORM, tm = 10 s

≤ 5

Method b1, at routine test (100% production) and

preconditioning (type test),

Vini = VIOTM, tini = 1 s, Vpd(m) = 1.875 × VIORM, tm = 1 s

≤ 5

CIO

Barrier capacitance,

input to output(5)

VIO = 0.5 VPP at 1 MHz

~3.5

RIO

Insulation resistance,

input to output(5)

VIO = 500 V at TA = 25°C

> 1012

VIO = 500 V at 100°C ≤ TA ≤ 125°C

> 1011

VIO = 500 V at TS = 150°C

> 109

Pollution degree

Climatic category

40/125/21

UL1577

VISO

Withstand isolation voltage

VTEST = VISO = 4250 VRMS or 6000 VDC, t = 60 s (qualification),

VTEST = 1.2 × VISO, t = 1 s (100% production test)

4250

VRMS

(1)

Apply creepage and clearance requirements according to the specific equipment isolation standards of an application. Care must 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 (PCB) do not reduce this distance. Creepage and clearance on a PCB become equal in certain cases. Techniques

such as inserting grooves, ribs, or both on a PCB are used to help increase these specifications.

(2)

This coupler is suitable for safe electrical insulation only within the safety ratings. Compliance with the safety ratings must be ensured

by means of suitable protective circuits.

(3)

Testing is carried out in air or oil to determine the intrinsic surge immunity of the isolation barrier.

(4)

Apparent charge is electrical discharge caused by a partial discharge (pd).

(5)

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

AMC3301-Q1

SBASA73 – JULY 2020

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