The CNY21N consists of a phototransistor optically
coupled to a gallium arsenide infrared emitting diode in
a 4-lead plastic dual inline package.
The single components are mounted on one leadframe in
the opposite position, providing a fixed distance between
input and output for highest safety requirements of
> 3 mm.
Application
Circuits for safe protective separation against electrical
shock according to safety class II (reinforced isolation):
D
For application class I - IV at mains voltage ≤ 300 V
D
For application class I - IV at mains voltage ≤ 600 V
CNY21N
95 10533
D
For application class I - III at mains voltage ≤ 1000 V
according, to VDE 0884, table 2, suitable for:
Switch-mode power supplies, computer peripheral
interface, microprocessor system interface, line
receiver.
These couplers perform safety functions according to the following equipment standards:
D
VDE 0884
Optocoupler providing protective separation
D
VDE 0804
Telecommunication apparatus and data processing
D
VDE 0805/IEC 950/EN 60950
Office machines (applied for reinforced isolation for
mains voltage ≤ 400 V
D
VDE 0860/lEC 65
Safety for mains operated electronic and related
household apparatus
D
VDE 0700/IEC 335
Household equipment
D
VDE 0160
Electronic equipment for electrical power installation
D
VDE 0750/IEC 601
Medical equipment
RMS
)
Pin Connection
A (+)
C (–)
C
95 10850
E
TELEFUNKEN Semiconductors
Rev . A1, 11-Jun-96
1 (10)
Page 2
CNY21N
Features
According to VDE 0884
D
Rated impulse voltage (transient overvoltage)
= 8 kV peak
V
IOTM
D
Isolation test voltage (partial discharge test voltage)
= 2.8 kV peak
V
pd
D
Rated isolation voltage (RMS includes DC)
IOWM
IORM
= 1000 V
= 1000 V
V
D
Rated recurring peak voltage (repetitive)
V
D
Creeping current resistance according to
VDE 0303/IEC 112
Comparative Tracking Index: CTI = 275
Absolute Maximum Ratings
(1450 V peak)
RMS
RMS
D
Thickness through insulation > 3 mm
D
Isolation materials according to UL 94
D
Pollution degree 2 (DIN/VDE 0110)
D
Climatic classification 55/085/21 (IEC 68 part 1)
D
Further approvals: BS 415, BS 7002, SETI: IEC 950,
UL 1577: File no: E 76222
D
Special construction: therefore extra low coupling
capacity of typical 0.3 pF, high Common Mode
Rejection
ParametersTest ConditionsSymbolValueUnit
AC isolation test voltage (RMS)V
Total power dissipationT
Ambient temperature rangeT
Storage temperature rangeT
Soldering temperature2 mm from case t ≤ 10 sT
This device is used for protective separation against electrical shock only within the maximum safety ratings.
This must be ensured by using protective circuits in the applications.
Figure 3. Test pulse diagram for sample test according to DIN VDE 0884
t
Tr
t
2
=10 s
test
t
stress
= 62 s
t
4
t
6 (10)
TELEFUNKEN Semiconductors
Rev . A1, 11-Jun-96
Page 7
CNY21N
Typical Characteristics (T
200
160
120
Coupled Device
80
Phototransistor
IR-Diode
40
tot
P – Total Power Dissipation ( mW )
0
025 5075
T
95 11003
– Ambient Temperature ( °C )
amb
= 25°C, unless otherwise specified)
amb
100
Figure 4. Total Power Dissipation vs. Ambient Temperature
1000.0
100.0
10000
VCE=20V
I
=0
1000
100
with open Base ( nA )
CEO
I – Collector Dark Current,
95 11005
F
10
1
0255075
T
– Ambient Temperature ( °C )
amb
100
Figure 7. Collector Dark Current vs. Ambient Temperature
100
VCE=5V
10
10.0
1.0
F
I – Forward Current ( mA )
0.1
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
VF – Forward Voltage ( V )96 11862
Figure 5. Forward Current vs. Forward Voltage
1.5
VCE=5V
1.4
I
=10mA
F
1.3
1.2
1.1
1.0
0.9
0.8
0.7
rel
0.6
CTR – Relative Current Transfer Ratio
0.5
–30 –20 –10 0 10 20 30 40 50 60 70 80
T
– Ambient Temperature ( °C )96 11909
amb
1
0.1
C
I – Collector Current ( mA )
0.01
0.1110
95 11006
IF – Forward Current ( mA )
Figure 8. Collector Current vs. Forward Current
C
I – Collector Current ( mA )
95 11007
100
10
1
0.1
0.1110
V
– Collector Emitter Voltage ( V )
CE
IF=50mA
20mA
2mA
100
10mA
5mA
1mA
100
Figure 6. Rel. Current Transfer Ratio vs. Ambient Temperature
TELEFUNKEN Semiconductors
Rev . A1, 11-Jun-96
Figure 9. Collector Current vs. Collector Emitter Voltage
7 (10)
Page 8
CNY21N
Typical Characteristics (T
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
CEsat
V – Collector Emitter Saturation Voltage ( V )
110100
IC – Collector Current ( mA )96 11910
CTR=50%
10%
= 25°C, unless otherwise specified)
amb
20%
Figure 10. Collector Emitter Sat. Voltage vs. Collector Current
1000
100
20
m
off
on
t / t – Turn on / Turn off Time ( s )
95 10994
16
12
8
Saturated Operation
V
S
4
R
L
0
051015
t
on
t
off
=5V
=1k
W
– Forward Current ( mA )
I
F
Figure 12. Turn on / off Time vs. Forward Current
20
m
15
Non Saturated
Operation
V
=5V
S
R
=100
W
L
20
10
CTR – Current Transfer Ratio ( % )
1
0.1110
95 11009
IF – Forward Current ( mA )
VCE=5V
100
Figure 11. Current Transfer Ratio vs. Forward Current
10
t
on
5
off
on
t / t – Turn on / Turn off Time ( s )
95 10993
0
02 46
t
off
– Collector Current ( mA )
I
C
8
Figure 13. Turn on / off Time vs. Collector Current
10
8 (10)
TELEFUNKEN Semiconductors
Rev . A1, 11-Jun-96
Page 9
Dimensions in mm
CNY21N
20.0
19.6
19.8
19.6
0.58
0.48
1.8
5.1
4.5
1.54
15.24
AC
CE
3.3
6.4
6.2
3.7
3.5
0.35
0.25
8.22
7.42
95 10948
technical drawings
according to DIN
specifications
TELEFUNKEN Semiconductors
Rev . A1, 11-Jun-96
9 (10)
Page 10
CNY21N
Ozone Depleting Substances Policy Statement
It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems
with respect to their impact on the health and safety of our employees and the public, as well as their impact on
the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as
ozone depleting substances (ODSs).
The Montreal Protocol ( 1987) and its London Amendments ( 1990) intend to severely restrict the use of ODSs and
forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban
on these substances.
TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of
continuous improvements to eliminate the use of ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively
2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.
TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain
such substances.
We reserve the right to make changes to improve technical design and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each customer
application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized
application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of,
directly or indirectly, any claim of personal damage, injury or death associated with such unintended or