■Features
■Applications
*5 For 10 seconds
6N138
1. High current transfer ratio
2. High speed response
3. Instantaneous common mode rejection
4. TTL compatible output
5. Overseas standard model
1. Interfaces for computer peripherals
3. Telephone sets
4. Signal transmission between circuits of
different potentials and impedances
■Outline Dimensions
6N138
(Ta= 25˚C)
6N138
Internal connection
diagram
(tPHL
*1 50% duty cycle, Pulse width: 1ms
*2 pulse width<=1 s, 300pps
*3 Decreases at the rate of 0.7mA /˚C if the external temperature is 25˚C or more.
1234
5678
1234
5678
0.5TYP
No. E64380.
data books, etc. Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device.”
“In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that occur in equipment using any of SHARP's devices, shown in catalogs,
Parameter Symbol Rating Unit
Input
Forward current IF20 mA
*1Peak forward current IF40 mA
*2Peak transient forward current IFM 1A
Reverse voltage VR5V
Power dissipation P 35 mW
Output
Supply voltage VCC - 0.5 to + 7 V
Output voltage VO- 0.5 to + 7 V
VEBO 0.5 V
*3Average output current IO60 mA
Power dissipation PO100 mW
*4Isolation voltage Viso
Operating temperature T opr 0 to + 70 ˚C
Storage temperature T stg - 55 to + 125 ˚C
*5Soldering temperature T sol 260 ˚C
High Sensitivity, High Speed
OPIC Photocoupler
An OPIC consists of a light-detecting element and signal-
processing circuit integrated onto a single chip.
* “OPIC”
(Optical IC ) is a trademark of the SHARP Corporation.
(CTR : MIN. 300% at IF= 1.6mA)
: TYP. 2 s at RL= 2.2kΩ)
: TYP. 500V/ s)
voltage ( CMH
6. Recognized by UL, file
■Absolute Maximum Ratings
withstand voltage (pin 5 to 7 )
(Unit : mm)
2. Electronic calculators, measuring instruments,
control equipment
Emitter-base reverse
2 500
*4 40 to 60% RH, AC for 1 minute
Primary side mark (Sunken place )
Vrms
=0 to 13 ˚
1 NC
2 Anode
3 Cathode
4 NC
5 GND
6 V
O
7 V
B
8 V
CC
6.5±0.5
1.2±0.3
0.85±0.3
0.8±0.2
1.2±0.3
9.22±0.5
3.5±0.5
3.7±0.5
0.5±0.1 2.54±0.25 0.26±0.1
7.62±0.3
µ
µ
µ
θ
θθ
■Electro-optical Characteristics
6N138
O< 0.8V).
*4 Test circuit for Propagation Delay Time
Parameter Symbol Conditions MIN. TYP. MAX. Unit
CTR
I
F
300 - %
Logic (0) output voltage VOL
I
O
- 0.1 0.4 V
Logic (1) output current IOH IF= 0, V CC =V
O= 7V - 0.1 250 A
Logic (0) supply current ICCL
I
F
- 0.5 -
Logic (1) supply current ICCH IF= 0, V CC = 5V, V O= open - 10 - nA
Input forward voltage VFIF- 1.5 1.7 V
Input forward voltage
temperature coefficient *2 IF- - 1.9 -
Input reverse voltage BVRIR=10µ
A, Ta= 25˚C 5.0 - - V
Input capacitance CIN VF= 0, f= 1MHz - 60 - pF
(input-output )II-O VI-O = 3kV DC - - 1.0 A
RI-O VI-O = 500V DC - 1012 -Ω
CI-O f= 1MHz - 0.6 - pF
■Switching Characteristics
current expressed in %.
*2 ∆VF/∆Ta
*3 Measured as 2-pin element (Short 1, 2, 3, 4 and 5, 6, 7, 8. )
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Output (1) → (0)tPHL IF
RL= 2.2kΩ- 2 10 s
Output (0)→ (1) tPLH IF
RL= 2.2kΩ- 7 35 s
CMHIF= 0, VCM = 10VP-P
RL= 2.2kΩ- 500 - V/ s
CMLIF
RL= 2.2kΩ- - 500 - V/ s
(Ta= 25˚C, VCC =5V
)
*1Current transfer ratio
*3Leak current
*3Isolation resistance (input-output )
*3Capacitance (input-output )
*1 Current transfer ratio is a ratio of input current and output Note ) Typical value : at Ta= 25˚C, VCC
*4Propagation delay time
*4Propagation delay time
*5Instantaneous common mode
*6rejection voltage “ Output (1)”
*5Instantaneous common mode
*6rejection voltage “ Output (0)”
Pulse input
=1/10
Pulse oscillator
100Ω
IF1
2
3
4
5
6
7
8
RL
VCC
VO
CL=15pF
5V
1.5V
V
OL
t
PLH
t
V
O
0
I
F
1.5V
duty ratio
the output above (1) level (VO> 2.0V).
(Ta= 0 to 70˚C unless otherwise specified)
= 4.5V= 1.6mA, V
O
= 4.8mA, V
CC
= 0.4V, V
CC
= 4.5V, I
F
= 1.6mA
= open= 5V, V
O
= 1.6mA, V
CC
= 1.6mA, Ta= 25˚C
= 1.6mA
mA
mV/˚C
= 1.6mA
= 1.6mA
= 1.6mA, VCM = 10V P-P
*5 Instantaneous common mode rejection voltage “ output (1)” represents a common mode voltage variation that can hold
the output above (0) level (V
IF monitor
PHL
1 600
Ta= 25˚C, 45%RH, t= 5s
=5V
Instantaneous common mode rejection voltage “ output (0)” represents a common mode voltage variation that can hold
µ
µ
µ
µ
µ
µ
6N138
IF
B
VFF
A
1
2
3
4
8
7
6
5
VCM
VCC=5V
Vo
RL
2V
0.8V
CM
H
V
O
V
O
CM
L
V
CM
0V t
r
t
10V
10% 90% 10%
5V
V
OL
I
F
I
F
=16mA
90%
=0
tr=tf=16ns
f
10
30
20
00 10025 50 7075
Fig. 1 Forward Current vs.
Ambient Temperature
F(mA)
Ambient temperature T a (˚C)
0
120
0
60
25 50 7570 100
100
80
40
35
20
P
Fig. 2 Power Dissipation vs.
Ambient Temperature
Power dissipation P, P (mW )
Ambient temperature T a (˚C)
PO
F(mA)
Fig. 3 Forward Current vs. Forward Voltage
00
3.0mA
2.5mA
2.0mA
1.0mA
10
20
30
40
2
0.5mA
1.5mA
3.5mA
4.0mA
4.5mA
Output current I O(mA)
Output voltage V O (V)
Fig. 4 Output Current vs. Output Voltage
50
60
P
O
(MAX.)
Forward current I
Forward current I
*6 Test Circuit for Instantaneous Common Mode Rejection Voltage
o
1
50˚C
25˚C
70˚C
1.0
0.01
0.1
1
10
100
1.2 1.4 1.6 1.8 2.0 2.2
Forward voltage V F (V)
IF= 5mA
Ta= 25˚C
VCC=5V
T
a
= 0˚C
6N138
2000.1
Current transfer ratio CTR (%)
1 10 100
800
600
400
25˚C
0˚C
Fig. 5 Current Transfer Ratio vs.
Forward Current
Forward current I F (mA)
0.004
0.01 100
50
1010.1
10
1
0.1
0.01
0˚C
25˚C
Fig. 6 Output Current vs. Forward Current
Output current IO(mA)
Forward current I F (mA)
0
1
2
10 20 30 40 7006050
Ambient temperature T a (˚C)
1/f =100 µs
0
5
10
10 20 30 40 7006050
Ambient temperature T a (˚C)
1/f= 1ms
10.1 101
10
100
1 000
Rise time, fall time tr, t f (µs)
10 -10
0
10 -9
10 20 30 40 50 60 70
10 -8
10 -7
10 -6
Ambient Temperature
Fig. 9 Logic (1) Supply Current vs.
CCH (A)
Ambient temperature T a (˚C)
L (kΩ)
Propagation delay time t PHL , t PLH (µs)
Propagation delay time t PHL , t PLH
Ambient Temperature
Fig. 8 Rise Time, Fall Time vs.
Fig. 7-a Propagation Delay Time vs. Fig. 7-b Propagation Delay Time vs.
Ambient Temperature
Logic (1) supply current I
T
a
= 70˚C
VO= 0.4V
VCC = 4.5V
Ta= 70˚C
VO= 0.4V
VCC = 5.0V
RL= 270Ω
IF= 12mA
tPHL
tPLH
RL= 4.7kΩ
IF= 0.5mA
tPHL
tPLH
T
a
= 25˚C
tf
tr
VO= OPEN
VCC= 15V
IF= 0mA
Adjust I
F
to V
OL
=2V
1 000
Load Resistance
Load resistance R
(µs)
6N138
IF
90%
90%2V
Pulse
input
Duty ratio
=1/10
10%
10%5V
5V
Input
Output
(saturated)
1.5V 1.5V VOL
IF
O
VO
tPHL t
tf
tOutput
Pulse
oscillator
VCC
VO
RL
100Ω
*7 Test Circuit for Rise Time, Fall Time vs. Load Resistance
IF monitor CL=15PF
(1) It is recommended that a by-pass capacitor of more than 0.01 µF be added between V CC and
GND near the device in order to stabilize power supply line.
(2) Transistor of detector side in bipolar configuration is apt to be affected by static electricity
for its minute design. When handling them, general counterplan against static electricity
should be taken to avoid breakdown of devices or degradation of characteristics.
■Precautions for Use
PLH
r
(non-saturated)
1
2
3
4
8
7
6
5
(3) As for other general cautions, refer to the chapter “Precautions for Use ” .
