TLP550

TOSHIBA Photocoupler Infrared LED + Photo IC

TLP550
Degital Logic Isolation Unit in mm
Line Receiver Feedback Control
Power Supply Control
Switching Power Supply
Transistor Invertor

TLP550 constructs a high emitting diode and a one chip photo diode−
transistor.
TLP550 has no base connection, and is suitable for application at noisy
environmental condition.
This unit is 8−lead DIP package.

l Isolation voltage: 2500 Vrms (min.)

l Switching speed: tpHL, tpLH = 0.5µs (typ.)(RL=1.9 kΩ)
l TTL compatible
l UL recognized: UL1577, file No. E67349 TOSHIBA 11−10C4
Weight: 0.54 g

Pin Configuration (top view)

1 8 1 : N.C.
2 : Anode
2 7 3 : Cathode
4 : N.C.
5 : Emitter
3 6
6 : Collector
7 : N.C.
4 5 8 : Cathode

Schematic

ICC
VCC
IF 8
2
VF IO
3 VO
6
GND
5

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Maximum Ratings (Ta = 25°C)

Characteristic Symbol Rating Unit

Forward current (Note 1) IF 25 mA

Pulse forward current (Note 2) IFP 50 mA
Peak transient forward
IFPT 1 A
LED

current (Note 3)
Reverse voltage VR 5 V
Diode power dissipation
PD 45 mW
(Note 4)
Output current IO 8 mA
Peak output current IOP 16 mA
Detector

Supply voltage VCC -0.5~15 V

Output voltage VO -0.5~15 V
Output power dissipation
PO 100 mW
(Note 5)
Operating temperature range Topr -55~100 °C
Storage temperature range Tstg -55~125 °C
Lead solder temperature (10s) Tsol 260 °C
Isolation voltage
BVS 2500 Vrms
(AC, 1min., R.H. = 40~60%) (Note 6)
(Note 1) Derate 0.8mA above 70°C.
(Note 2) 50% duty cycle, 1ms pulse width.
Derate 1.6mA / °C above 70°C.
(Note 3) Pulse width 1µs, 300pps.
(Note 4) Derate 0.9mW / °C above 70°C.
(Note 5) Derate 2mW / °C above 70°C.

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 TLP550
Electrical Characteristics (Ta = 25°C)

Characteristic Symbol Test condition Min. Typ. Max. Unit

Forward voltage VF IF = 16 mA 1.45 1.65 1.85 V

Forward voltage
∆VF /∆Ta IF = 16 mA ― -2 ― mV / °C
temperature coefficient
LED

Reverse current IR VR = 5 V ― ― 10 µA
Capacitance between
CT VF = 0, f = 1MHz ― 60 ― pF
terminal
IOH (1) IF = 0 mA, VCC = VO = 5.5 V ― 3 500 nA
High level output IOH (2) IF = 0 mA, VCC = VO = 15 V ― ― 5 µA
Detector

current
IF = 0 mA, VCC = VO = 15 V
IOH ― ― 50 µA
Ta = 70°C
High level supply
ICCH IF = 0 mA, VCC = 15 V ― 0.01 1 µA
voltage
Ta = 25°C 10 30 ―
IF = 16 mA Rank : 0 19 30 ―
Current transfer ratio IO / IF VCC = 4.5 V %
VO = 0.4 V Ta = 0~70°C 5 ― ―
Rank : 0 15 ― ―
Coupled

IF = 16 mA, VCC = 4.5 V

Low level output
VOL IO = 1.1 mA ― ― 0.4 V
voltage
(rank 0: IO = 2.4mA)
R.H. = 40~60%, V = 1kV DC 12
Isolation resistance RS ― 10 ― Ω
(Note 6)
Capacitance between
CS V = 0, f = 1MHz ― 0.8 ― pF
input to output

Switching Characteristics (Ta = 25°C)

Characteristic Symbol Test Condition Min. Typ. Max. Unit

IF = 0→ 16 mA, VCC = 5V, RL = 4.1 kΩ ― 0.3 0.8

Propagation delay time
tpHL µs
(H→ L)
(Note 7) Rank 0: RL = 1.9 kΩ ― 0.5 0.8

IF = 16→ 0 mA, VCC = 5V, RL = 4.1 kΩ ― 1.0 2.0

Propagation delay time
tpLH µs
(L→ H)
(Note 7) Rank 0: RL = 1.9 kΩ ― 0.6 1.2

Common mode transient IF = 0 mA, VCM = 200 Vp-p

immunity at high output CMH RL = 4.1 kΩ (rank 0: RL = 1.9 kΩ) ― 1500 ― V /µs
level (Note 8)
Common mode transient IF = 16 mA, VCM = 200 Vp-p
immunity at low output CML RL = 4.1 kΩ (rank 0: RL = 1.9 kΩ) ― -1500 ― V /µs
level (Note 8)

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 TLP550

(Note 6) Device considered two-terminal device: Pins 1, 2, 3 and 4 shorted together and pin 5, 6, 7 and 8 shorted together.
(Note 7) Switching time test circuit.

Pulse IF VCC=5V IF
input 1 8
0
PW = 100µs 2 7 RL
Duty ratio = 1 / 10
IF monitor 3 6 VO 5V
VO
51Ω

4 5 Output
monitor 1.5V 1.5V
VOL

tpHL tpLH

(Note 8) Common mode transient immunity test circuit.

VCC=5V 200V
90%
1 8
VCM
IF 10%
2 7 RL 0V
tr tf
3 6 VO

4 5 Output
monitor VO 5V
(IF = 0mA) 2V
VCM
0.8V
VO VOL
Pulse gen (IF = 16mA)
ZO=50Ω
160 (V) 160 (V)
CMH= , CML=
tf (µs) tf (µs)

(Note 9) Maximum electrostatic discharge voltage for any pins: 100V (C = 200pF, R = 0)

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 TLP550

IF – VF ∆VF / ∆Ta – IF
100 -2.6
Ta = 25°C
50
30

coefficient ∆VF / ∆Ta (mV / ℃)

Forward voltage temperature
-2.4
(mA)

10
5 -2.2
3
Forward current IF

1 -2.0
0.5
0.3
-1.8

0.1
0.05 -1.6
0.03

0.01 -1.4
1.0 1.2 1.4 1.6 1.8 2.0 0.1 0.3 0.5 1 3 5 10 30

Forward voltage VF (V) Forward current IF (mA)

IOH (1) – Ta lO – I F
300 10
VCC = 5V
5 VO = 0.4V
100 Ta = 25°C
IOH (µA)

3
(mA)
50
1
30
Output current IO

0.5
High level output current

0.3
10

5 0.1
3
0.05
0.03
1

0.6 0.01
0 40 80 120 160 0.1 0.3 0.5 1 3 5 10 30 50 100 300

Ambient temperature Ta (℃) Forward current IF (mA)

IO / IF – IF IO / IF – Ta
100 1.2
VCC = 5V
VO = 0.4V
50

30 1.0
Ta = -25°C 0.8
Current transfer ratio

IO / IF
IO / IF (%)

100°C 0.6
10
Normalized

Normalized To :
5 25°C 0.4
IF = 16mA
3 VCC = 4.5V
0.2 VO = 0.4V
Ta = 25°C

1 0
0.3 0.5 1 3 5 10 30 50 -40 -20 0 20 40 60 80 100

Forward current IF (mA)

Ambient temperature Ta (℃)

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 TLP550

IO – VO VO – IF
5
30mA VCC = 5V VCC = 5V
10
Ta = 25°C
IF
25mA 4 RL
(mA)

(V)
20mA VO

Output voltage VO
3
Output current IO

6 15mA
Ta=25°C
2 RL=2kΩ
4 10mA

3.9kΩ
IF=5mA 10kΩ
1
2

0 0
0 1 2 3 4 5 6 7 0 4 8 12 16 20 24

Output voltage VO (V) Forward current IF (mA)

tpHL, tpLH – RL
5
IF = 16mA
VCC = 5V
3
Ta = 25°C
tpLH
Propagation delay time
tpLH, tpHL (µs)

0.5

0.3

tpHL

0.1
1 3 5 10 30 50 100

Load resistance RL (kΩ)

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RESTRICTIONS ON PRODUCT USE 000707EAA

· TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety
in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such
TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc..

· The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer,
personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These
TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high
quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury
(“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or spaceship
instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical
instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall
be made at the customer’s own risk.

· The information contained herein is presented only as a guide for the applications of our products. No responsibility
is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third
parties which may result from its use. No license is granted by implication or otherwise under any intellectual
property or other rights of TOSHIBA CORPORATION or others.
· The information contained herein is subject to change without notice

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