TLP2405
Photocouplers
GaAℓAs Infrared LED & Photo IC
TLP2405
1. Applications
•
•
•
High-Speed Digital Interfacing for Instrumentation and Control Devices
Communications Equipment
Intelligent Power Module Signal Isolation
2. General
The Toshiba TLP2405 consists of a GaAℓAs light-emitting diode coupled with a high-gain, high-speed photo
detector. It is housed in the 8-pin SO8 package.
The detector has a totem-pole output stage with current sourcing and sinking capabilities.
The TLP2405 has an internal Faraday shield that provides a guaranteed common-mode transient immunity of
±15
kV/µs.
The TLP2405 a logic buffer output. An inverter output version, the TLP2408, is also available.
3. Features
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Buffer logic type (totem pole output)
Package: SO8
Supply voltage: 4.5 to 20 V
Threshold input voltage, low to high: I
FLH
= 1.6 mA (max)
Propagation delay time: t
pHL
/t
pLH
= 250 ns (max)
Common-mode transient immunity:
±15
kV/µs (min)
Operating temperature: -40 to 100
Isolation voltage: 3750 Vrms (min)
Safety standard
UL-approved: UL1577 File No.E67349
cUL-approved: CSA Component Acceptance Service No.5A, File No.E67349
VDE-approved: Option (V4) EN60747-5-2 (Note)
Note: When an EN60747-5-2 approved type is needed, please designate the Option (V4)
(V4).
4. Packaging and Pin Configuration
1: NC
2: Anode
3: Cathode
4: NC
5: GND
6: NC
7: V
O
(output)
8: V
CC
SO8
1
2010-08-12
Rev.1.0
TLP2405
5. Internal Circuit (Note)
Fig. 5.1 Internal Circuit
Note:
A 0.1-µF bypass capacitor must be connected between pin 8 and pin 5.
6. Principle of Operation
6.1. Truth Table
Input
H
L
LED
ON
OFF
Output
H
L
6.2. Mechanical Parameters
Characteristics
Creepage distances
Clearance
Internal isolation thickness
Min
4.0
4.0
Unit
mm
2
2010-08-12
Rev.1.0
TLP2405
7. Absolute Maximum Ratings (Note)
Unless otherwise specified, T
a
= 25
Characteristics
LED
Forward current
Forward current derating
Reverse voltage
Power dissipation
Power dissipation derating
Detector Output current
Output current
Output voltage
Supply voltage
Common Operating temperature
Storage temperature
Lead soldering temperature
Isolation voltage
(10 s)
AC, 1 min,
R.H.
≤
60%
(T
a
≥
85)
(T
a
≤
25)
(T
a
= 100)
(T
a
≤
85)
(T
a
≥
85)
Symbol
I
F
∆I
F
/
V
R
P
D
∆P
D
/
I
O
I
O
V
O
V
CC
T
opr
T
stg
T
sol
BV
S
(Note 1)
Note
Rating
25
-0.67
5
40
-1.0
25/-15
5/-5
-0.5 to 20
-0.5 to 20
-40 to 100
-55 to 125
260
3750
Vrms
V
Unit
mA
mA/
V
mW
mW/
mA
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: This device is considered as a two-terminal device: Pins 1, 2, 3 and 4 are shorted together, and pins 5, 6, 7
and 8 are shorted together.
8. Recommended Operating Conditions (Note)
Characteristics
Input on-state current
Input off-state voltage
Supply voltage
Operating temperature
Symbol
I
F(ON)
V
F(OFF)
V
CC
T
opr
(Note 1)
Note
Min
2
0
4.5
-40
Typ.
Max
10
0.8
20
100
Unit
mA
V
The recommended operating conditions are given as a design guide necessary to obtain the intended
performance of the device. Each parameter is an independent value. When creating a system design using
this device, the electrical characteristics specified in this datasheet should also be considered.
Note: A ceramic capacitor (0.1
µF)
should be connected between pin 8 and pin 5 to stabilize the operation of a high-
gain linear amplifier. Otherwise, this photocoupler may not switch properly. The bypass capacitor should be
placed within 1 cm of each pin.
Note 1: Denotes the operating range, not the recommended operating condition.
Note:
3
2010-08-12
Rev.1.0
TLP2405
9. Electrical Characteristics (Note)
Unless otherwise specified, T
a
= -40 to 100, V
CC
= 4.5 to 20 V
Characteristics
Input forward voltage
Input temperature coefficient
of forward voltage
Input reverse current
Input capacitance
Low-level output voltage
High-level output voltage
Symbol
V
F
∆V
F
/∆T
a
I
R
C
T
V
OL
V
OH
(Note 2)
Note
Test
Circuit
Fig.
12.1.1
Fig.
12.1.2
Test Condition
I
F
= 10 mA, T
a
= 25
I
F
= 10 mA
V
R
= 5 V, T
a
= 25
V = 0 V, f = 1 MHz
I
O
= 3.5 mA, V
F
= 0.8 V
V
CC
= 4.5 V, I
O
= -2.6 mA,
I
F
= 5 mA
V
CC
= 20 V, I
O
= -2.6 mA,
I
F
= 5 mA
Low-level supply current
I
CCL
I
CCH
Fig.
12.1.3
Fig.
12.1.4
(Note 1)
Fig.
12.1.5
Fig.
12.1.6
V
CC
= 5.5 V, V
F
= 0 V
V
CC
= 20 V, V
F
= 0 V
V
CC
= 5.5 V, I
F
= 5 mA
V
CC
= 20 V, I
F
= 5 mA
V
CC
= V
O
= 5.5 V, V
F
= 0 V
V
CC
= V
O
= 20 V, V
F
= 0 V
V
CC
= 5.5 V, I
F
= 5 mA,
V
O
= GND
V
CC
= 20 V, I
F
= 5 mA,
V
O
= GND
Threshold input current, low
to high
Threshold input voltage, high
to low
Input current hysteresis
I
FLH
V
FHL
I
HYS
I
O
= -2.6 mA, V
O
> 2.4 V
I
O
= 3.5 mA, V
O
< 0.6 V
V
CC
= 5 V
Min
1.40
2.7
17.4
15
20
-5
-10
0.8
Typ.
1.57
-1.8
60
0.2
3.5
19
80
90
-15
-20
0.4
0.05
Max
1.80
10
0.6
3.0
3.0
3.0
3.0
1.6
V
mA
mA
Unit
V
mV/
µA
pF
V
High-level supply current
Low-level short-circuit output
current
High-level short-circuit output
current
I
OSL
I
OSH
(Note 1)
Note: All typical values are at T
a
= 25.
Note 1: Duration of output short circuit time should not exceed 10 ms.
Note 2: V
OH
= V
CC
- V
O
(V)
10. Isolation Characteristics
Unless otherwise specified, T
a
= 25
Characteristics
Capacitance (input to output)
Isolation resistance
Isolation voltage
Symbol
C
S
R
S
BV
S
Note
Test Conditions
Min
1×10
12
3750
Typ.
1.0
10
14
10000
10000
Max
V
DC
Unit
pF
Ω
Vrms
(Note 1) V
S
= 0 V, f = 1 MHz
V
S
= 500 V, R.H.
≤
60%
AC, 1 min
AC, 1 s in oil
DC, 1 min in oil
Note 1: This device is considered as a two-terminal device: Pins 1, 2, 3 and 4 are shorted together, and pins 5, 6, 7
and 8 are shorted together.
4
2010-08-12
Rev.1.0
TLP2405
11. Switching Characteristics (Note)
Unless otherwise specified, T
a
= -40 to 100, V
CC
= 4.5 to 20 V
Characteristics
Propagation delay time
to logic high output
Propagation delay time
to logic low output
Pulse width distortion
Rise time
Fall time
Common-mode
transient immunity at
output high
Common-mode
transient immunity at
output low
Symbol
t
pLH
t
pHL
|t
pLH
- t
pHL
|
t
r
t
f
CM
H
Fig.
12.1.9
Note
Test
Circuit
Fig.
12.1.7,
Fig.
12.1.8
Test Condition
I
F
= 0
→
3 mA
I
F
= 3
→
0 mA
I
F
= 0
→
3 mA, V
CC
= 5 V
I
F
= 3
→
0 mA, V
CC
= 5 V
V
CM
= 1000 V
p-p
, I
F
= 5 mA,
V
CC
= 20 V, T
a
= 25
V
CM
= 1000 V
p-p
, I
F
= 0 mA,
V
CC
= 20 V, T
a
= 25
Min
30
30
-15
Typ.
90
120
30
30
Max
250
250
220
75
75
kV/µs
Unit
ns
CM
L
15
Note:
All typical values are at T
a
= 25.
5
2010-08-12
Rev.1.0
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