ADuM1253

Ultra-Low-Power, I2C Isolator with

Unidirectional SCL, Extended VDD,

Idle-Bus Hot-Swap, and Low VOL

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Analog Devices | 11

Isolation Characteristics

8-Lead MSOP (21-0036) Isolation Characteristics

PARAMETER

SYMBOL

CONDITIONS

VALUE UNITS

VOLTAGE (Note 2)

Maximum Working Isolation

Voltage

VIOWM

Continuous RMS voltage (Note 1)

300

VRMS

Maximum Withstanding Isolation

Voltage

VISO

fTEST = 60Hz, duration = 60s (Note 1, Note 2)

2500

VRMS

PACKAGE CHARACTERISTICS

External Clearance

CLR

Measured from input terminals to output terminals,

shortest distance through air

3

mm

External Creepage

CPG

Measured from input terminals to output terminals,

shortest distance along body

3

mm

Internal Clearance

DTI

Distance through insulation

21

µm

Comparative Tracking Index

CTI

> 400

V

Material Group

Material group (IEC 60112)

II

—

Resistance (Input to Output)

RIO

VIO = 500V, TA = +25°C (Note 3)

1012

Ω

VIO = 500V, +100°C ≤ TA ≤ +125°C (Note 3)

1011

Ω

Capacitance (Input to Output)

CIO

fTEST = 1MHz (Note 3)

1.5

pF

Note 1: VISO and VIOWM are defined by the IEC 60747-17 standard.

Note 2: Insulation voltage guaranteed by design, not tested in production. Insulation is similar in structure to devices that

are tested to 5 kV rms in production.

Note 3: Device is measured as a 2-terminal device with Pin 1 through Pin 4 connected and Pin 5 through Pin 8 connected.

8-Lead Narrow SOIC (21-0041) Isolation Characteristics

PARAMETER

SYMBOL

CONDITIONS

VALUE

UNITS

CLASSIFICATIONS

Overvoltage Category per

IEC60664-1

r rate mains v ltage ≤ 150VRMS

I to IV

—

r rate mains v ltage ≤ 300VRMS

I to III

—

Climatic Classification

40/125/21

—

Pollution Degree

Per DIN VDE V 0110 (refer to Table 1 of the DIN VDE

standard)

2

—

VOLTAGE

Maximum Working Isolation

Voltage

VIOWM

Continuous RMS voltage (Note 1)

445

VRMS

Maximum Repetitive Isolation

Voltage

VIORM

(Note 1)

630

VPEAK

Maximum Transient Isolation

Voltage

VIOTM

t = 1s (Note 1)

4242

VPEAK

Maximum Withstanding Isolation

Voltage

VISO

fTEST = 60Hz, duration = 60s (Note 1, Note 2)

3000

VRMS

Maximum Surge Isolation Voltage,

Reinforced

VIOSM

Test method per IEC 60065, VTEST =

1.6 x VIOSM = 10000VPEAK (Note 1, Note 4)

6250

VPEAK

Maximum Impulse Voltage

VIMP

Tested in air, 1.2µs/50µs waveform per IEC 62368-1

6000

VPEAK

Input to Output Test Voltage

VPR

1182

VPEAK

Apparent Charge

qpd

Method B1, VPR =1.875 x VIORM, t = 1s

5

pC

PACKAGE CHARACTERISTICS

External Clearance

CLR

Measured from input terminals to output terminals,

shortest distance through air

4

mm

External Creepage

CPG

Measured from input terminals to output terminals,

shortest distance along body

4

mm

Internal Clearance

DTI

Distance through insulation

21

µm