Fairchild 6N138 service manual

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查询6N138S供应商

Single-Channel: 6N138, 6N139 Dual-Channel: HCPL-2730, HCPL-2731 Low Input Current High Gain Split Darlington Optocouplers

July 2005

Single-Channel: 6N138, 6N139
Dual-Channel: HCPL-2730, HCPL-2731
Low Input Current High Gain Split
Darlington Optocouplers

Features

Low current - 0.5 mA
Superior CTR-2000%
Superior CMR-10 kV/µs
CTR guaranteed 0-70°C
U.L. recognized (File # E90700)
VDE recognized (File # 120915) Ordering option

V, e.g., 6N138V
Dual Channel - HCPL-2730
HCPL-2731

Applications

Digital logic ground isolation
Telephone ring detector
EIA-RS-232C line receiver
High common mode noise line receiver
µP bus isolation
Current loop receiver

Description

The 6N138/9 and HCPL-2730/HCPL-2731 optocouplers consist
of an AlGaAs LED optically coupled to a high gain split darling­ton photodetector.

The split darlington configuration separating the input photo­diode and the first stage gain from the output transistor permits
lower output saturation voltage and higher speed operation than
possible with conventional darlington phototransistor optocou­pler. In the dual channel devices, HCPL-2730/HCPL2731, an
integrated emitter - base resistor provides superior stability over
temperature.

The combination of a very low input current of 0.5 mA and a
high current transfer ratio of 2000% makes this family particu­larly useful for input interface to MOS, CMOS, LSTTL and EIA
RS232C, while output compatibility is ensured to CMOS as well
as high fan-out TTL requirements. An internal noise shield pro­vides exceptional common mode rejection of 10 kV/µs.

PackageSchematic

1

N/C

8

1

+

2

V

F

_

3

4 5

N/C

V

8

CC

V

7

B

V

6

O

GND

+

1

V

F1

_

2

_

3

V

F2

+

4 5

V

8

CC

V

7

01

V

6

02

GND

8

8

6N138 / 6N139

1

1

©2005 Fairchild Semiconductor Corporation

Single-Channel: 6N138, 6N139 Dual-Channel: HCPL-2730, HCPL-2731 Rev. 1.0.0

1

HCPL-2730 / HCPL-2731

www.fairchildsemi.com

/ ∆

Single-Channel: 6N138, 6N139 Dual-Channel: HCPL-2730, HCPL-2731 Low Input Current High Gain Split Darlington Optocouplers

Absolute Maximum Ratings

(T

= 25°C unless otherwise specified)

A

Parameter Symbol Value Units

Storage Temperature T

Operating Temperature T

Lead Solder Temperature (Wave solder only. See recommended reflow profile graph for
SMD mounting)

EMITTER

DC/Average Forward Input Current Each Channel I

Peak Forward Input Current (50% duty cycle, 1 ms P.W.) Each Channel I

Peak Transient Input Current - ( ≤ 1 µs P.W., 300 pps) I

Reverse Input Voltage Each Channel V

Input Power Dissipation Each Channel P

DETECTOR

Average Output Current Each Channel I

Emitter-Base Reverse Voltage (6N138 and 6N139) V

Supply Voltage, Output Voltage (6N138, HCPL-2730) V

(6N139, HCPL-2731) -0.5 to 18

Output Power Dissipation Each Channel P

(T

Electrical Characteristics

= 0 to 70°C Unless otherwise specified)

A

STG

OPR

T

SOL

(avg) 20 mA

F

(pk) 40 mA

F

(trans) 1.0 A

F

R

D

(avg) 60 mA

O

ER

, V

CC

O

-55 to +125 °C

-40 to +85 °C

260 for 10 sec °C

5V

35 mW

0.5 V

O

-0.5 to 7 V

100 mW

Individual Component Characteristics

Parameter Test Conditions Symbol Device Min Typ** Max Unit

EMITTER

Input Forward Voltage Each channel (I

Input Reverse Breakdown Voltage (T

Temperature coefficient of forward voltage (I

= 25°C, I

A

= 1.6 mA) ( ∆ V

F

DETECTOR

Logic high output current (I

Logic low supply (I

Logic high supply (I

** All Typicals at T

= 25°C

A

(I

F1

(I

= 0 mA, V

F

(I

= 0 mA, V

F

= I

F2

(V

- V

O1

= I

F1

(V

- V

O1

= 1.6 mA, V

F

= 1.6 mA, V

= Open, V

O2

= 0 mA, V

F

= 0 mA, V

F2

= Open, V

O2

T

=25°C V

A

= 1.6 mA) 1.75

F

= 10 µA) BV

R

F

R

All 1.30 1.7 V

All 5.0 20 V

Each Channel

T

) All -1.8 mV/°C

F

A

= V

O

= 18 V) I

CC

OH

6N139 0.01 100 µA

Each Channel HCPL-2731

= V

= 7 V) 6N138 0.01 250

O

CC

Each Channel HCPL-2730

= Open)

O

(V

= 18 V)

CC

= 18 V) HCPL-2731 1.3 3

CC

= 7 V HCPL-2730

CC

= Open,

O

V

= 18 V)

CC

= 18 V) HCPL-2731 0.10 20

CC

= 7 V HCPL-2730

CC

I

I

CCL

CCH

6N138
6N139

6N135
6N136

0.4 1.5 mA

0.05 10 µA

Single-Channel: 6N138, 6N139 Dual-Channel: HCPL-2730, HCPL-2731 Rev. 1.0.0

2

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Single-Channel: 6N138, 6N139 Dual-Channel: HCPL-2730, HCPL-2731 Low Input Current High Gain Split Darlington Optocouplers

Transfer Characteristics

(T

= 0 to 70°C Unless otherwise specified)

A

Parameter Test Conditions Symbol Device Min Typ** Max Unit

COUPLED

Current transfer ratio
(Note 1, 2)

Logic low output voltage
output voltage (Note 2)

** All Typicals at T

A

= 25°C

(I

= 0.5 mA, V

F

(I

= 1.6 mA, V

F

(I

= 1.6 mA, V

F

(I

= 0.5 mA, I

F

(I

= 1.6 mA, I

F

(I

= 0.5 mA, I

F

(I

= 12 mA, I

F

(I

= 1.6 mA, I

F

= 0.4 V, V

O

= 0.4 V, V

O

= 0.4 V, V

O

= 2 mA, V

O

= 8 mA, V

O

= 15 mA, V

O

= 24 mA, V

O

= 4.8 mA, V

O

= 4.5 V) CTR 6N139 400 1100 %

CC

Each Channel HCPL-2731 3500

= 4.5 V) 6N139 500 1300 %

CC

Each Channel HCPL-2731 2500

= 4.5 V) 6N138 300 1300 %

CC

Each Channel HCPL-2730 2500

= 4.5 V) V

CC

= 4.5 V) 6N139 0.01 0.4

CC

OL

6N139 0.08 0.4 V

Each Channel HCPL-2731

= 4.5 V) 6N139 0.13 0.4

CC

Each Channel HCPL-2731

= 4.5 V) 6N139 0.20 0.4

CC

Each Channel HCPL-2731

= 4.5 V) 6N138 0.10 0.4

CC

Each Channel HCPL-2730

Single-Channel: 6N138, 6N139 Dual-Channel: HCPL-2730, HCPL-2731 Rev. 1.0.0

3

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Single-Channel: 6N138, 6N139 Dual-Channel: HCPL-2730, HCPL-2731 Low Input Current High Gain Split Darlington Optocouplers

Switching Characteristics

(T

= 0 to 70°C unless otherwise specified., V

A

CC

= 5 V)

Parameter Test Conditions Symbol Device Min Typ** Max Unit

Propagation delay

time to logic low

(Note 2) (Fig. 22)

Propagation delay
time to logic high
(Note 2) (Fig. 22)

Common mode
transient immunity
at logic high

Common mode
transient immunity
at logic low

** All Typicals at T

(RL = 4.7 kΩ, IF = 0.5 mA) TA = 25°C 6N139 12 60

(RL = 270 Ω, IF = 12 mA) Each Channel HCPL-2730

(RL = 2.2 kΩ, IF = 1.6 mA) TA = 25°C 6N138 7 35

TA = 25°C, (RL = 2.2 kΩ) (Note 3) (Fig. 23)

= 1.6 mA, |VCM| = 10 V

(I

F

= 25°C

A

(R

= 4.7 k Ω , I

L

(R

= 4.7 k Ω , I

L

Each Channel T

(R

= 270 Ω, I

L

= 0.5 mA) T

F

T

= 25°C 4 25

A

= 0.5 mA) HCPL-2731 120

F

= 25°C 3 100

A

= 12 mA) 6N139 2

F

PHL

6N139 30 µs

TA = 25°C 0.2 1

(RL = 270 Ω, IF = 12 mA) HCPL-2730 3

Each Channel TA = 25°C HCPL-2731 0.3 2

(RL = 2.2 kΩ, IF = 1.6 mA) 6N138 15

TA = 25°C 1.5 10

(RL = 2.2 kΩ, IF = 1.6 mA) HCPL-2731

Each Channel TA = 25°C 1 20

(RL = 4.7 kΩ, IF = 0.5 mA) T

PLH

HCPL-2730

6N139 90 µs

25

Each Channel HCPL-2731

Each Channel HCPL-2731 22

(RL = 270 Ω, IF = 12 mA) 6N139 10

TA = 25°C 1.3 7

15

TA = 25°C 5 10

HCPL-2731

(RL = 2.2 kΩ, IF = 1.6 mA) 6N138 50

Each Channel HCPL-2730/1

Each Channel HCPL-2730/1 16

(IF = 0 mA, |VCM| = 10 V

)

|CMH| 6N138

P-P

1,000 10,000 V/µs

6N139

Each Channel HCPL-2730

HCPL-2731

, RL = 2.2 kΩ)

P-P

TA = 25°C, (Note 3) (Fig. 23)

|CML| 6N138

6N139

1,000 10,000 V/µs

Each Channel HCPL-2730

HCPL-2731

Single-Channel: 6N138, 6N139 Dual-Channel: HCPL-2730, HCPL-2731 Rev. 1.0.0

4

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Single-Channel: 6N138, 6N139 Dual-Channel: HCPL-2730, HCPL-2731 Low Input Current High Gain Split Darlington Optocouplers

Isolation Characteristics (T

= 0 to 70°C Unless otherwise specified)

A

Characteristics Test Conditions Symbol Min Typ** Max Unit

Input-output
insulation leakage current

Withstand insulation test voltage (RH ≤ 50%, TA = 25°C)

Resistance (input to output) (Note 4) (V

Capacitance (input to output) (Note 4, 5) (f = 1 MHz) C

Input-Input

(RH ≤ 45%, V

Insulation leakage current

Input-Input Resistance (V

Input-Input Capacitance (f = 1 MHz) (Note 6)

** All Typicals at TA = 25°C

Notes

1. Current Transfer Ratio is defined as a ratio of output collector current, IO, to the forward LED input current, IF, times 100%.

2. Pin 7 open. (6N138 and 6N139 only)

3. Common mode transient immunity in logic high level is the maximum tolerable (positive) dV
mon mode pulse signal VCM, to assure that the output will remain in a logic high state (i.e., VO>2.0 V). Common mode transient
immunity in logic low level is the maximum tolerable (negative) dVcm/dt on the trailing edge of the common mode pulse signal,
VCM, to assure that the output will remain in a logic low state (i.e., VO<0.8 V).

4. Device is considered a two terminal device: Pins 1, 2, 3 and 4 are shorted together and Pins 5, 6, 7 and 8 are shorted together.

5. For dual channel devices, C
together.

6. Measured between pins 1 and 2 shorted together, and pins 3 and 4 shorted together.

I

is measured by shorting pins 1 and 2 or pins 3 and 4 together and pins 5 through 8 shorted

I-O

(Relative humidity = 45%)

(TA = 25°C, t = 5 s)

(V

= 3000 VDC)

I-O

(Note 8)

(Note 4) ( t = 1 min.)

= 500 VDC) R

I-O

= 500 VDC) (Note 6)

I-I

t = 5 s, (HCPL-2730/2731 only)

= 500 VDC) (Note 6)

I-I

(HCPL-2730/2731 only)

(HCPL-2730/2731 only)

I

I-O

V

ISO

I-O

I-O

I

I-I

R

I-I

C

I-I

2500 V

12

10

0.6 pF

0.005 µA

11

10

0.03 pF

/dt on the leading edge of the com-

cm

1.0 µA

RMS

Ω

Ω

Single-Channel: 6N138, 6N139 Dual-Channel: HCPL-2730, HCPL-2731 Rev. 1.0.0

5 www.fairchildsemi.com