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TLP521, TLP521-2, TLP521-4
HIGH DENSITY MOUNTING
PHOTOTRANSISTOR
OPTICALL Y COUPLED ISOLATORS
APPROVALS
l UL recognised, File No. E91231
DESCRIPTION
The TLP521 , TLP521-2 , TLP521-4 series of
optically coupled isolators consist of infrared
light emitting diodes and NPN silicon photo
transistors in space efficient dual in line plastic
packages.
FEATURES
l Options :-
10mm lead spread - add G after part no.
Surface mount - add SM after part no.
Tape&reel - add SMT&R after part no.
l High Current Transfer Ratio ( 50% min)
l High Isolation Voltage (5.3kV
l High BV
l All electrical parameters 100% tested
l Custom electrical selections available
( 55Vmin )
CEO
RMS
,7.5kV
PK
APPLICATIONS
l Computer terminals
l Industrial systems controllers
l Measuring instruments
l Signal transmission between systems of
different potentials and impedances
OPTION SM
SURFACE MOUNT
1.2
0.6
10.2
9.5
1.4
0.9
OPTION G
7.62
0.26
10.16
TLP521
TLP521-2
)
TLP521-4
3.0
1.2
3.0
1.2
2.54
1.2
3.0
10.16
9.16
20.32
19.32
5.08
4.08
0.5
2.54
0.5
2.54
3.35
3.35
0.5
7.0
6.0
4.0
3.0
7.0
6.0
4.0
3.0
Dimensions in mm
1
2
7.62
0.5
0.26
18
2
3
4
0.5
0.26
7.0
6.0
4.0
3.0
0.5
3.35
4
3
13°
Max
7.62
1
2
3
413
512
611
7
8
7.62
0.26
7
6
5
13°
Max
16
15
14
10
9
13°
Max
ISOCOM COMPONENTS LTD
Unit 25B, Park View Road West,
Park View Industrial Estate, Brenda Road
Hartlepool, Cleveland, TS25 1YD
Tel: (01429) 863609 Fax :(01429) 863581
31/7/97
ISOCOM INC
720 E., Park Boulevard, Suite 104,
Plano, TX 75074 USA
Tel: (972) 423-5521
Fax: (972) 422-4549
DB92546-AAS/A1
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ABSOLUTE MAXIMUM RATINGS
(25°C unless otherwise specified)
Storage Temperature -55°C to + 125°C
Operating Temperature -55°C to + 100°C
Lead Soldering Temperature
(1/16 inch (1.6mm) from case for 10 secs) 260°C
INPUT DIODE
Forward Current 50mA
Reverse Voltage 5V
Power Dissipation 70mW
OUTPUT TRANSISTOR
Collector-emitter Voltage BV
Emitter-collector Voltage BV
Power Dissipation 150mW
CEO
ECO
55V
6V
POWER DISSIPATION
Total Power Dissipation 200mW
(derate linearly 2.67mW/°C above 25°C)
ELECTRICAL CHARACTERISTICS ( TA = 25°C Unless otherwise noted )
PARAMETER MIN TYP MAX UNITS TEST CONDITION
Input Forward Voltage (VF) 1.0 1.15 1.3 V IF = 10mA
Reverse Voltage (VR) 5VI
Reverse Current (IR)10µAV
Output Collector-emitter Breakdown (BV
( Note 2 )
Emitter-collector Breakdown (BV
Collector-emitter Dark Current (I
)55 V IC = 0.5mA
CEO
) 6 V IE = 100µA
ECO
) 100 nA VCE = 24V
CEO
= 10µA
R
= 5V
R
Coupled Current Transfer Ratio (CTR) (Note 2)
TLP521, TLP521-2, TLP521-4 50 600 % 5mA IF , 5V V
CTR selection available BL 200 600 %
GB 100 600 %
GB 30 % 1mA IF , 0.4V V
CE
CE
Collector-emitter Saturation VoltageVCE
(SAT)
0.4 V 8mA IF , 2.4mA I
-GB 0.4 V 1mA IF , 0.2mA I
Input to Output Isolation Voltage V
5300 V
ISO
7500 V
Input-output Isolation Resistance R
ISO
5x10
10
Rise Time tr 2 µsV
Fall Time tf 3 µsI
Turn-on Time ton 3 µs
Turn-off Time toff 3 µs
Note 1 Measured with input leads shorted together and output leads shorted together.
Note 2 Special Selections are available on request. Please consult the factory.
31/7/97
RMS
PK
Ω V
See note 1
See note 1
= 500V (note 1)
IO
= 10V ,
CC
= 2mA, RL = 100Ω
C
DB92546-AAS/A1
C
C
Page 3
Collector Power Dissipation vs. Ambient Temperature
200
(mW)
C
150
100
20
(mA)
C
25
15
10
Collector Current vs. Low
Collector-emitter Voltage
TA = 25°C
50
40
30
20
10
5
50
Collector power dissipation P
0
-30 0 25 50 75 100 125
Ambient temperature TA ( °C )
Forward Current vs. Ambient Temperature
60
50
(mA)
40
F
30
20
Forward current I
10
0
-30 0 25 50 75 100 125
Ambient temperature TA ( °C )
Collector current I
5
I
F
= 2mA
0
0 0.2 0.4 0.6 0.8 1.0
Collector-emitter voltage VCE ( V )
Collector Current vs. Collector-emitter Voltage
50
50
TA = 25°C
30
40
(mA)
C
20
15
30
10
20
Collector current I
10
IF = 5mA
0
0 2 4 6 8 10
Collector-emitter voltage VCE ( V )
31/7/97
Collector-emitter Saturation
(V)
0.28
CE(SAT)
0.24
0.20
Voltage vs. Ambient Temperature
IF = 5mA
IC = 1mA
0.16
0.12
0.08
0.04
0
Collector-emitter saturation voltage V
-30 0 25 50 75 100
Ambient temperature TA ( °C )
Current Transfer Ratio vs. Forward Current
320
280
240
200
160
120
80
40
Current transfer ratio CTR (%)
VCE = 5V
TA = 25°C
0
1 2 5 10 20 50
Forward current IF (mA)
DB92546-AAS/A1
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