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Document Number: 83725

132 Rev. 1.8, 07-Jan-10

4N25, 4N26, 4N27, 4N28

Vishay Semiconductors

Optocoupler, Phototransistor Output, with Base Connection

DESCRIPTION

The 4N25 family is an industry standard single channel

phototransistor coupler. This family includes the 4N25,

4N26, 4N27, 4N28. Each optocoupler consists of gallium

arsenide infrared LED and a silicon NPN phototransistor.

FEATURES

• Isolation test voltage 5000 V

RMS

• Interfaces with common logic families

• Input-output coupling capacitance < 0.5 pF

• Industry standard dual-in-line 6 pin package

• Compliant to RoHS directive 2002/95/EC and

in accordance to WEEE 2002/96/EC

APPLICATIONS

• AC mains detection

• Reed relay driving

• Switch mode power supply feedback

• Telephone ring detection

• Logic ground isolation

• Logic coupling with high frequency noise rejection

AGENCY APPROVALS

• UL1577, file no. E52744

• BSI: EN 60065:2002, EN 60950:2000

• FIMKO: EN 60950, EN 60065, EN 60335

i179004-5

21842

ORDER INFORMATION

PART REMARKS

4N25 CTR > 20 %, DIP-6

4N26 CTR > 20 %, DIP-6

4N27 CTR > 10 %, DIP-6

4N28 CTR > 10 %, DIP-6

ABSOLUTE MAXIMUM RATINGS

(1)

PARAMETER TEST CONDITION SYMBOL VALUE UNIT

INPUT

Reverse voltage V

Forward current I

60 mA

Surge current t ≤ 10 μs I

FSM

Power dissipation P

diss

100 mW

OUTPUT

Collector emitter breakdown voltage V

CEO

70 V

Emitter base breakdown voltage V

EBO

Collector current

50 mA

t ≤ 1 ms I

100 mA

Power dissipation P

diss

150 mW

Summary of content (7 pages)

PAGE 1
4N25, 4N26, 4N27, 4N28 Vishay Semiconductors Optocoupler, Phototransistor Output, with Base Connection FEATURES A 1 6 B C 2 5 C NC 3 4 E • Isolation test voltage 5000 VRMS • Interfaces with common logic families • Input-output coupling capacitance < 0.
PAGE 2
4N25, 4N26, 4N27, 4N28 Optocoupler, Phototransistor Output, Vishay Semiconductors with Base Connection ABSOLUTE MAXIMUM RATINGS PARAMETER (1) TEST CONDITION SYMBOL VALUE UNIT VISO COUPLER Isolation test voltage 5000 VRMS Creepage distance ≥7 mm Clearance distance ≥7 mm ≥ 0.
PAGE 3
4N25, 4N26, 4N27, 4N28 Vishay Semiconductors Optocoupler, Phototransistor Output, with Base Connection CURRENT TRANSFER RATIO PARAMETER (1) TEST CONDITION VCE = 10 V, IF = 10 mA DC current transfer ratio PART SYMBOL MIN. TYP. 4N25 CTRDC 20 50 MAX. UNIT % 4N26 CTRDC 20 50 % 4N27 CTRDC 10 30 % 4N28 CTRDC 10 30 % Note (1) Indicates JEDEC registered values.
PAGE 4
N25, 4N26, 4N27, 4N28 Optocoupler, Phototransistor Output, Vishay Semiconductors with Base Connection 1.5 Normalized to: VCE = 10 V, IF = 10 mA, TA = 25 °C CTRCE(sat) VCE = 0.4 V NCTRcb - Normalized CTRcb NCTR - Normalized CTR 1.5 1.0 TA = 85 °C 0.5 NCTR(SAT) NCTR 1 10 100 IF - LED Current (mA) i4n25_05 25 °C 50 °C 70 °C 1 10 100 IF - LED Current (mA) Fig. 8 - Normalized CTRcb vs.
PAGE 5
4N25, 4N26, 4N27, 4N28 Vishay Semiconductors Optocoupler, Phototransistor Output, NhFE(sat) - Normalized Saturated hFE with Base Connection 1.5 VCC = 5 V Normalized to: VCE = 10 V, Ib = 20 µA TA = 25 °C 70 °C 50 °C f = 10 kHz DF = 50 % 1.0 25 °C VO - 20 °C 0.5 IF = 10 mA VCE = 0.4 V 0.0 1 10 100 1000 i4n25_14 Ib - Base Current (µA) i4n25_11 Fig. 11 - Normalized hFE vs. Base Current and Temperature tPHL 2.0 100 1.5 10 tPLH 1 0.
PAGE 6
4N25, 4N26, 4N27, 4N28 Optocoupler, Phototransistor Output, Vishay Semiconductors with Base Connection PACKAGE DIMENSIONS in millimeters 7.62 typ. 7.12 ± 0.3 3.5 ± 0.3 6.5 ± 0.3 1.2 ± 0.1 14771_2 6 5 4 1 2 3 4.5 ± 0.3 0.5 ± 0.1 2.8 ± 0.15 4.5 ± 0.3 0.25 7.62 to 9.5 typ. PACKAGE MARKING 4N25 V YWW 24 21764-25 Document Number: 83725 Rev. 1.8, 07-Jan-10 For technical questions, contact: optocoupleranswers@vishay.com www.vishay.
PAGE 7
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