ADuM1253

Ultra-Low-Power, I2C Isolator with

Unidirectional SCL, Extended VDD,

Idle-Bus Hot-Swap, and Low VOL

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Regulatory Information

The ADuM1253 has been approved by the organizations listed below. Certifications are available at Safety and Regulatory

Certifications for Digital Isolation.

8-Lead Narrow SOIC (21-0041) Package Certifications

REGULATORY AGENCY

STANDARD CERTIFICATION/APPROVAL

FILE

UL

UL 1577 component recognition program (Note 1):

Single/basic 3000VRMS isolation voltage.

(Pending)

CSA

CSA No 14-18 (Note 2 and Note 3):

CSA 62368-1:19, IEC 62368-1:2018 Ed. 3 and EN62368-1:2020+A11:2020:

Basic insulation at 400VRMS.

CSA 61010-1-12+A1 and IEC 61010-1 3rd Ed.:

Basic insulation at 300VRMS from mains, 400VRMS from secondary circuit.

(Pending)

VDE

IEC 60747-17 (Note 4):

Reinforced insulation, maximum transient isolation voltage 4242VPK, maximum

repetitive peak isolation voltage 630VPK.

(Pending)

CQC

GB 4943.1-2022:

Basic insulation at 400VRMS (565VPEAK) maximum working voltage, tropical

climate, altitude < 5000m

(Pending)

TUV Sud

IEC 62368-1:2018 Ed. 3 and EN62368-1:2020+A11:2020:

Basic insulation at 400VRMS

(Pending)

Note 1:

In accordance with UL 1577, each ADuM1253A A+ is pr f teste by applying an insulati n test v ltage ≥ 3600VRMS

for 1 second (current leakage detection limit = 5µA).

Note 2:

Working voltages are quoted for material group III case material in pollution degree 2. ADuM1253ASA+ case material

has been evaluated by CSA as material group I.

Note 3:

The creepage and clearance distances have been evaluated for altitudes < 2000m, material group III, in pollution degree

2 and overvoltage category II, except where specified above.

Note 4:

In accordance with IEC 60747-17, each ADuM1253 is proof tested by applying an insulati n test v ltage ≥ 1182V peak

f r 1s (partial ischarge etecti n limit = 5 pC). This c upler is suitable f r “safe electrical insulati n” nly ithin the

safety ratings. Compliance with the safety ratings shall be ensured by means of suitable protective circuits.

8-Lead Wide SOIC (21-00415) Package Certifications

REGULATORY AGENCY

STANDARD CERTIFICATION/APPROVAL

FILE

UL

UL 1577 component recognition program (Note 1):

Single/basic 5000VRMS isolation voltage.

(Pending)

CSA

CSA No 14-18 (Note 2 and Note 3):

CSA 62368-1:19, IEC 62368-1:2018 Ed. 3 and EN62368-1:2020+A11:2020:

Basic insulation at 800VRMS.

CSA 61010-1-12+A1 and IEC 61010-1 3rd Ed.:

Basic insulation at 600VRMS from mains, 800VRMS from secondary circuit

(Pending)