Fairchild 4N25, 4N26, 4N27, 4N28, 4N35 service manual

4N25.300

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

4N25	4N26	4N27	4N28	4N35	4N36
4N37	H11A1	H11A2	H11A3	H11A4	H11A5

WHITE PACKAGE (-M SUFFIX)

6

6 1

1

6

1

SCHEMATIC

1		6
2		5
3	NC	4

PIN 1. ANODE

2.CATHODE

3.NO CONNECTION

4.EMITTER

5.COLLECTOR

6.BASE

BLACK PACKAGE (NO -M SUFFIX)

6

6 1

1

6

1

DESCRIPTION

The general purpose optocouplers consist of a gallium arsenide infrared emitting diode driving a silicon phototransistor in a 6-pin dual in-line package.

FEATURES

•Also available in white package by specifying -M suffix, eg. 4N25-M

•UL recognized (File # E90700)

•VDE recognized (File # 94766)

-Add option V for white package (e.g., 4N25V-M)

-Add option 300 for black package (e.g., 4N25.300)

APPLICATIONS

•Power supply regulators

•Digital logic inputs

•Microprocessor inputs

© 2005 Fairchild Semiconductor Corporation

Page 1 of 15

6/15/05

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

4N25	4N26	4N27	4N28		4N35	4N36
4N37	H11A1	H11A2	H11A3		H11A4	H11A5
ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specified)
Parameter				Symbol	Value	Units
TOTAL DEVICE
Storage Temperature				TSTG	-55 to +150	°C
Operating Temperature				TOPR	-55 to +100	°C
Wave solder temperature (see page 14 for reflow solder profiles)				TSOL	260 for 10 sec	°C
Total Device Power Dissipation @ TA = 25°C				PD	250	mW
Derate above 25°C					3.3 (non-M), 2.94 (-M)
EMITTER
DC/Average Forward Input Current				IF	100 (non-M), 60 (-M)	mA
Reverse Input Voltage				VR	6	V
Forward Current - Peak (300µs, 2% Duty Cycle)				IF(pk)	3	A
LED Power Dissipation @ TA = 25°C				PD	150 (non-M), 120 (-M)	mW
Derate above 25°C					2.0 (non-M), 1.41 (-M)	mW/°C
DETECTOR
Collector-Emitter Voltage				VCEO	30	V
Collector-Base Voltage				VCBO	70	V
Emitter-Collector Voltage				VECO	7	V
Detector Power Dissipation @ TA = 25°C				PD	150	mW
Derate above 25°C					2.0 (non-M), 1.76 (-M)	mW/°C

© 2005 Fairchild Semiconductor Corporation

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6/15/05

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

4N25	4N26	4N27	4N28	4N35	4N36
4N37	H11A1	H11A2	H11A3	H11A4	H11A5

ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified)

INDIVIDUAL COMPONENT CHARACTERISTICS

Parameter	Test Conditions	Symbol	Min	Typ*	Max	Unit
EMITTER
Input Forward Voltage	(IF = 10 mA)	VF		1.18	1.50	V
Reverse Leakage Current	(VR = 6.0 V)	IR		0.001	10	µA
DETECTOR
Collector-Emitter Breakdown Voltage	(IC = 1.0 mA, IF = 0)	BVCEO	30	100		V
Collector-Base Breakdown Voltage	(IC = 100 µA, IF = 0)	BVCBO	70	120		V
Emitter-Collector Breakdown Voltage	(IE = 100 µA, IF = 0)	BVECO	7	10		V
Collector-Emitter Dark Current	(VCE = 10 V, IF = 0)	ICEO		1	50	nA
Collector-Base Dark Current	(VCB = 10 V)	ICBO			20	nA
Capacitance	(VCE = 0 V, f = 1 MHz)	CCE		8		pF

ISOLATION CHARACTERISTICS
Characteristic	Test Conditions		Symbol	Min	Typ*	Max	Units
Input-Output Isolation Voltage	(Non ‘-M’, Black Package) (f = 60 Hz, t = 1 min)		VISO	5300			Vac(rms)
	(‘-M’, White Package) (f = 60 Hz, t = 1 sec)			7500			Vac(pk)
Isolation Resistance	(V	= 500 VDC)	R	1011			Ω
	I-O		ISO
Isolation Capacitance	(VI-O = &, f = 1 MHz)		CISO		0.5		pF
	(‘-M’ White Package)				0.2	2	pF

Note

* Typical values at TA = 25°C

© 2005 Fairchild Semiconductor Corporation

Page 3 of 15

6/15/05

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

4N25

4N26

4N27

4N28

4N35

4N36

4N37

H11A1

H11A2

H11A3

H11A4

H11A5

TRANSFER CHARACTERISTICS (TA = 25°C Unless otherwise specified.)

DC Characteristic

Test Conditions

Symbol

Device

Min

Typ*

Max

Unit

4N35

4N36

100

4N37

H11A1

50

H11A5

30

(IF = 10 mA, VCE = 10 V)

4N25

4N26

20

H11A2

CTR

H11A3

%

Current Transfer Ratio,

4N27

Collector to Emitter

4N28

10

H11A4

(IF = 10 mA, VCE = 10 V, TA = -55°C)

4N35

4N36

40

4N37

(IF = 10 mA, VCE = 10 V, TA = +100°C)

4N35

4N36

40

4N37

4N25

(IC = 2 mA, IF = 50 mA)

4N26

0.5

4N27

4N28

4N35

Collector-Emitter

VCE (SAT)

4N36

0.3

V

Saturation Voltage

4N37

(IC = 0.5 mA, IF = 10 mA)

H11A1

H11A2

H11A3

0.4

H11A4

H11A5

AC Characteristic

4N25

4N26

4N27

Non-Saturated

(IF = 10 mA, VCC = 10 V, RL = 100Ω)

TON

4N28

H11A1

2

µs

Turn-on Time

(Fig.20)

H11A2

H11A3

H11A4

H11A5

Non Saturated

(IC = 2 mA, VCC = 10 V, RL = 100Ω)

TON

4N35

4N36

2

10

µs

Turn-on Time

(Fig.20)

4N37

© 2005 Fairchild Semiconductor Corporation

Page 4 of 15

6/15/05

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

4N25	4N26	4N27	4N28	4N35	4N36
4N37	H11A1	H11A2	H11A3	H11A4	H11A5

TRANSFER CHARACTERISTICS (TA = 25°C Unless otherwise specified.) (Continued)

AC Characteristic	Test Conditions	Symbol	Device	Min	Typ*	Max	Unit
			4N25
			4N26
			4N27
	(IF = 10 mA, VCC = 10 V, RL = 100Ω)		4N28
			H11A1		2
	(Fig.20)
			H11A2
Turn-off Time		TOFF					µs
			H11A3
			H11A4
			H11A5
	(IC = 2 mA, VCC = 10 V, RL = 100Ω)		4N35
			4N36		2	10
	(Fig.20)
			4N37
* Typical values at TA = 25°C

© 2005 Fairchild Semiconductor Corporation

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6/15/05