SFH6721 datasheet(4/10 Pages) VISHAY

4 / 10 page

SFH6720, SFH6721

www.vishay.com

Vishay Semiconductors

Rev. 1.7, 27-Aug-15

Document Number: 83684

For technical questions, contact: optocoupleranswers@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

Note

(1) Tamb = 25 °C, VCC = 5 V. (2)

(2) CMH is the maximum slew rate of a common mode voltage VCM at which the output voltage remains at logic high level (VO > 2 V). CML is

the maximum slew rate of a common mode voltage VCM at which the output voltage remains at logic low level (VO < 0.8 V).

Note

• As per IEC 60747-5-5, § 7.4.3.8.2, this optocoupler is suitable for “safe electrical insulation” only within the safety ratings. Compliance with

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

TYPICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)

Fig. 1 - Permissible Total Power Dissipation vs. Temperature

Fig. 2 - Typical Input Diode Forward Current vs. Forward Voltage

COMMON MODE TRANSIENT IMMUNITY (1)

PARAMETER

TEST CONDITION

PART

SYMBOL

MIN.

TYP.

MAX.

UNIT

Logic high common mode

transient immunity (2)

|VCM| = 50 V, IF = 1.6 mA

SFH6720

|CMH|

1000

V/μs

|VCM| = 300 V, IF = 1.6 mA

SFH6721

|CMH|

5000

V/μs

Logic low common mode

transient immunity (2)

|VCM| = 50 V, IF = 0 mA

SFH6720

|CML|

1000

V/μs

|VCM| = 1000 V, IF = 0 mA

SFH6721

|CML|

10 000

V/μs

SAFETY AND INSULATION RATINGS

PARAMETER

TEST CONDITION

SYMBOL

VALUE

UNIT

Climatic classification

According to IEC 68 part 1

55/100/21

Pollution degree

According to DIN VDE 0109

Comparative tracking index

Insulation group IIIa

CTI

175

Maximum rated withstanding isolation voltage

According to UL1577, t = 1 min

VISO

3333

VRMS

Tested withstanding isolation voltage

According to UL1577, t = 1 s

VISO

4000

VRMS

Maximum transient isolation voltage

According to DIN EN 60747-5-5

VIOTM

6000

Vpeak

Maximum repetitive peak isolation voltage

According to DIN EN 60747-5-5

VIORM

560

Vpeak

Isolation resistance

VIO = 500 V, Tamb = 25 °C

RIO

1012



VIO = 500 V, Tamb = 100 °C

RIO

1011



Output safety power

PSO

350

Input safety current

ISI

150

Input safety temperature

165

°C

Creepage distance

SOIC-8

 4mm

Clearance distance

SOIC-8

 4mm

Insulation thickness

DTI

 0.2

isfh6720_01

TA - Temperature (°C)

Emitter

Detector

150

120

100

- 60

100

- 20

- 40

isfh6720_02

VF - Forward Voltage (V)

0.01

0.1

1.3

1.4

1.5

1.6

1.7

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