TLP557

TOSHIBA Photocoupler GaAℓAs Ired & Photo−IC

TLP557
Transistor Inverter
Inverter For Air Conditioner
Unit in mm
Power Transistor Base Drive

The TOSHIBA TLP557 consists of a GaAℓAs light emitting diode and an

integrated photodetector.
This unit is 8−lead DIP package.
TLP557 is suitable for base driving circuit of power transistor module up
to 20A.
External resistor needs to connect between pin 6 and pin 7.
This is for constant current driving.

• Input threshold current: IF=5mA(max.)

• Guaranteed performance temperature range: −30~70°C
• Supply voltage: 16V(max.)
• Output current: ±0.3A(max.)
• Switching time (tpLH / tpHL): 5μs(max.)
• Isolation voltage: 2500Vrms(min.) TOSHIBA 11−10C4
• UL recognized: UL1577, file No. E67349 Weight: 0.54g
Pin Configuration (top view)

Schematic
1 8
ICC
VCC 2 7
(Tr1) 8
IF
7 VO1
3 6
2+
(Rex)
VF
6
3 – 4 5
VO2
IO
(Tr2)
1 : N.C.
GND 2 : Anode
5 3 : Cathode
4 : N.C.
5 : GND
6 : VO2(Output)
7 : VO1(Rex Terminal)
8 : VCC

Truth Table

Tr1 Tr2

Input On On Off
LED Off Off On

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 TLP557
Absolute Maximum Ratings

Characteristic Symbol Rating Unit

Forward current IF 25 mA

Peak transient forward

IFPT 1 A
LED

current (Note 1)
Reverse voltage VR 5 V
Junction temperature (Tj) 125 °C
Output current
IO +0.32 / −0.32 A
(f ≤ 5kHz, Duty ≤ 50%)
Peak output current
IOP +2 / −0.5 A
(PW ≤ 10μs, f ≤ 5kHz)
Output voltage VO 16 V
Detector

Supply voltage VCC 16 V

O1 terminal to O2 terminal
V1−2 1.5 V
(pin 7−pin 6) voltage
O2 terminal to O1 terminal
V2−1 5 V
(pin 6−pin 7) voltage
Power dissipation (Note 2) Po 0.5 W
Junction temperature (Tj) 125 °C
Total package power dissipation
POT 0.55 W
(Note 3)
Operating temperature range Topr −30~70 °C
Storage temperature range Tstg −55~125 °C
Lead solder temperature (10 s) Tsol 260 °C
Isolation voltage (AC, 1 min.,
BVS 2500 Vrms
R.H.≤ 60%, Ta=25°C) (Note 4)

Note: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even
if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum
ratings.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test
report and estimated failure rate, etc).

(Note 1) Pulse width PW ≤ 1μs, 300pps

(Note 2) ΔPo / °C=−6.7mW / °C (Ta ≥ 50°C)

(Note 3) ΔPOT / °C=−7.4mW / °C (Ta ≥ 50°C)

(Note 4) Device considered a two terminal device: Pins 1, 2, 3 and 4 shorted together, and pins 5, 6, 7 and 8 shorted
together.

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 TLP557
Recommended Operating Condition

Characteristic Symbol Min. Typ. Max. Unit

Input current on IF(ON) 7 8 20 mA

Input voltage off VF(OFF) 0 ― 0.8 V
Supply voltage VCC 5 6 13 V
IB1 Drive current IO1 ― 0.15 0.25 A
IB2 Drive current IO2 ― ― 0.5 A
External resistance Rex 2.7 4.3 ― Ω
VCC−VO2 (pin 8−pin 6) 3 2.5
V8−6 2.3 V
ON voltage (IO1 = 0.15A) (IO1 = 0.25A)
Operating temperature Topr −30 25 70 °C

Note: Recommended operating conditions are given as a design guideline to obtain expected performance of the
device. Additionally, each item is an independent guideline respectively. In developing designs using this
product, please confirm specified characteristics shown in this document.
(Rex is for constant current driving)

VCC
1 VCC 8
IF(ON) V8-6
Rex
2 7
IO1
VF(OFF)
3 VO2 6
IO2
4 GND 5

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 TLP557
Electrical Characteristics (Ta = −30~70°C , unless otherwise specified)
Test
Characteristic Symbol Test Condition Min. Typ.* Max. Unit Cir−
cuit
Input forward voltage VF IF = 5mA , Ta = 25°C ― 1.55 1.7 V
Temperature coefficient
ΔVF / ΔTa IF = 5mA ― −2.0 ― mV / °C
of forward voltage
Input reverse current IR VR = 5V, Ta = 25°C ― ― 10 μA
Input capacitance CT V = 0 , f = 1MHz , Ta = 25°C ― ― 250 pF
O1 Output leakage current IO1L VCC = 16V, VO1 = 0, VF = 0.8V ― 0.01 200 μA 1
VCC = 16V, VO2 = 16V,
O2 Output leakage current IO2L ― 0.2 200 μA 2
IF = 5mA
V8−6 = 2.3V VCC = 6V 0.22 0.27 0.32
O1 Output current IO Rex = 2.7Ω A 3
IF = 5mA, Ta = 25°C VCC = 16V 0.22 0.27 0.32

O2 High level output VCC = 6V, Rex = 2.7Ω

VOH 3.5 5.5 ― V 4
voltage IF = 5mA

VF = 0.8V, Rex = 2.7Ω VCC = 6V ― 0.2 0.4

V
IO = 0.25A, Ta = 25°C VCC = 16V ― 0.2 0.4
O2 Low level output
VOL 5
voltage VF = 0.8V, Rex = 2.7Ω VCC = 6V ― 0.4 ―
IO = 0.5A (*1) V
Ta = 25°C VCC = 16V ― 0.4 ―

VCC = 6V, IF = 5mA

― 3.8 10
Rex = 2.7Ω, Ta = 25°C
High level supply current ICCH mA
VCC = 6V, IF = 5mA, Rex = 2.7Ω ― ― 13
VCC = 16V, IF = 5mA, Rex = 2.7Ω ― 5.2 17
VCC = 6V, IF = 0mA
― 11 17
Rex = 2.7Ω, Ta = 25°C
Low level supply current ICCL mA
VCC = 6V, IF = 0mA, Rex = 2.7Ω ― ― 22
VCC = 16V, IF = 0mA, Rex = 2.7Ω ― 13 25
Rex = 2.7Ω VCC = 6V ― 2.5 5
“Output L→H” threshold
IFLH IO = 0.25A mA
input current VCC = 16V ― ― 5
VO2 > 3V
Rex = 2.7Ω VCC = 6V 0.8 ― ―
“Output H→L” threshold
VFHL IO = 0.25A V
input current VCC = 16V 0.8 ― ―
VO2 < 0.4V
Input current hysterisis IHYS VCC = 6V, Rex = 2.7Ω, Ta = 25°C ― 0.05 ― mA
Supply voltage VCC 5 ― 16 V
Capacitance (input−output) CS VS = 0, f = 1MHz, Ta = 25°C ― 1.0 2.0 pF
10 12
Resistance (input−output) RS VS = 500V , Ta = 25℃, R.H.≤ 60% 5×10 10 ― Ω

* All typical values are at Ta = 25°C (*1): Duration of IO time ≤ 100μs

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 TLP557
Switching Characteristics (Ta = −30~70°C unless otherwise specified)
Test
Characteristic Symbol Test Condition Min. Typ.* Max. Unit Cir−
cuit
Propagation delay time, L→H tpLH ― 1 5 μs
Propagation delay time, H→L tpHL VCC = 6V, IF = 8mA ― 1 5 μs
Rex = 2.7Ω 6
Output rise time tr f = 5kHz, Duty = 10% ― 0.05 ― μs
Output fall time tf ― 0.05 ― μs
Common mode transient VCM = 600V, IF = 8mA
immunity at high level CMH VCC = 6V, Rex = 270Ω −2000 ― ― V / μs 7
output R = 1kΩ, Ta = 25°C
Common mode transient VCM = 600V, IF = 0mA
immunity at low level CML VCC = 6V, Rex = 270Ω 2000 ― ― V / μs 7
output R = 1kΩ, Ta = 25°C

* All typical values are at Ta = 25°C.

Test Circuit 5: VOL

8
1
Test Circuit 1: IO1L
8 VF Rex VCC
1
V IO
4 VOL
VF VCC
A
IO1L Test Circuit 6: tpLH, tpHL, tr, tf
4
IF
IF
Test Circuit 2: IO2L Rex VCC 90%
8 IO
1 IO 10%
100Ω GND
tr
IF VCC 47μF IO
A tf
IO2L tpLH tpHL
4
Test Circuit 7: CMH, CML
8
1
Test Circuit 3: IO IF
SW
1 Rex VCC
A B
VCC VO2
IF Rex V8-6 4 R
A
VCM
IO
4 + - 90%
600V
10% tr tf 480(V)
Test Circuit 4: VOH VCM
CML =
8 SW : A(IF=8mA) tr (μs)
1 CMH 480(V)
0.8V 3.5V CMH =
VO2 CHL tf (μs)
IF Rex VCC SW : B(IF=0)
V VOH CML (CMH) is the maximum rate of rise (fall) of the
4 common mode voltage that can be
sustained with the
output voltage in the low (high) state.

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 TLP557

PO – Ta ⊿VF /⊿Ta – IF
1.0 -2.6
f < 5kHz
Duty < 50%

coefficient ⊿VF /⊿Ta (mV / ℃)

Forward voltage temperature
-2.4
power dissipation

0.8

-2.2
0.6
PO (W)

-2.0

0.4
Allowable

-1.8

0.2
-1.6

0 -1.4
-40 -20 0 20 40 60 80 0.1 0.3 0.5 1 3 5 10

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

IF – VF
100 Ta = 25℃
IF (mA)

10
Forward current

0.1

0.01
1.0 1.2 1.4 1.6 1.8 2.0

Forward voltage VF (V)

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 TLP557

RESTRICTIONS ON PRODUCT USE 20070701-EN

• The information contained herein is subject to change without notice.

• 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 his
document shall be made at the customer’s own risk.

• The products described in this document shall not be used or embedded to any downstream products of which
manufacture, use and/or sale are prohibited under any applicable laws and regulations.

• The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which
may result from its use. No license is granted by implication or otherwise under any patents or other rights of
TOSHIBA or the third parties.

• GaAs(Gallium Arsenide) is used in this product. The dust or vapor is harmful to the human body. Do not break,
cut, crush or dissolve chemically.

• Please contact your sales representative for product-by-product details in this document regarding RoHS
compatibility. Please use these products in this document in compliance with all applicable laws and regulations
that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses
occurring as a result of noncompliance with applicable laws and regulations.

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