IL352
Phototransistor Optocoupler
Preliminary
FEATURES
• Good CTR Linearity Depending on Forward
Current
• Isolation Test Voltage, 1768 V
RMS
• High Collector-Emitter Voltage,
V
CEO
=30 V
• Low Saturation Voltage
• Fast Switching Times
• Field-Effect Stable by TRIOS*
DESCRIPTION
The IL352 is an optically coupled isolator that
features a high current transfer ratio, low coupling
capacitance and high isolation voltage. It has a
GaAs infrared emitting diode emitter, which is
optically coupled to a silicon planar phototransis-
tor detector. The component is housed in a thin
line package.
The coupling device is designed for signal trans-
mission between two electrically separated cir-
cuits. The potential difference between the
circuits to be coupled must not exceed the maxi-
mum permissible reference voltages.
Maximum Ratings
Emitter
Reverse Voltage ...........................................6.0 V
DC Forward Current ..................................60 mA
Total Power Dissipation ............................50 mW
Derate Linearly from 25
°
C.................0.66 mW/
°
C
Detector
Collector-Emitter Voltage ..............................70 V
Emitter-Base Voltage ...................................7.0 V
Collector Current .......................................50 mA
Collector Current (t
≤
1.0 ms) ....................100 mA
Total Power Dissipation ...........................150 mW
Derate Linearly from 25
°
C...................2.5 mW/
°
C
Package
Isolation Test Voltage (between emitter
and detector referred to climate
DIN 40046, part 2, Nov. 74)
t=1.0 sec......................................... 3000 V
RMS
Isolation Resistance
V
IO
=500 V,
T
A
=25
°
C ............................
≥
10
12
Ω
V
IO
=500 V,
T
A
=100
°
C ..........................
≥
10
11
Ω
Storage Temperature Range .....–40
°
C to +150
°
C
Ambient Temperature Range ......–40
°
C to +85
°
C
Junction Temperature................................. 100
°
C
Soldering Temperature
(max 10 s, Dip Soldering Distance
to Seating Plane
≥
1.5 mm) ..................... 260
°
C
*TR
ansparent
IO
n
S
hield
Dimensions in Inches (mm)
Pins
6&7
N.C 1
A 2
K 3
N.C 4
.230 (5.84)
.224 (5.69)
.017 (.43)
.013 (.33)
.047 (1.19)
.037 (.94)
.091 (2.3)
.083 (2.1)
.040 (1.02)
.036 (.91)
.050
(1.27)
Typ.
.016
(.41)
Typ.
.006
(.15)
10°
Typ.
All 8 sides
8 B
7
C
6
5 E
.301 (7.65)
.281 (7.14)
.224 (5.7) .346 (8.79)
.216 (5.5) .326 (8.3)
40°
3°–7°
Characteristics
T
A
=25
°
C
Emitter
Forward Voltage
Reverse Current
Capacitance
Detector
Breakdown Voltage
Collector-Emitter
Emitter-Collector
Collector-Emitter
Leakage
—
BV
CEO
BV
ECO
30
7.0
—
5.0
50
nA
—
V
Sym.
Min.
—
—
—
Typ.
1.3
0.1
25
Max.
1.5
10
—
Units
V
µ
A
pF
Condition
V
F
I
R
C
O
I
F
=10 mA
V
R
=6.0 V
V
R
=0
f=1.0 MHz
I
C
=1.0 mA
I
E
=100
µ
A
I
CEO
V
CE
=10 V
I
F
=0
T
A
=25
°
C
V
CE
=30 V
I
F
=0
T
A
=85
°
C
I
C
=100
µ
A
V
CE
=0
—
—
500
µ
A
Collector to Base
Capacitance
Collector-Emitter
BV
CBO
70
—
—
6.0
—
—
V
pF
C
CE
Infineon Technologies, Corp. • Optoelectronics Division • Cupertino, CA (formerly Siemens Microelectronics, Inc.)
www.infineon.com/opto • 1-800-777-4363
1
April 29, 1999
Characteristics
T
A
=25
°
C (continued)
Package
Symbol
Min.
100
34
—
—
—
Typ.
—
—
—
0.5
10
Max.
—
—
0.3
—
—
Units
%
%
V
pF
µ
s
Condition
Figure 3. Forward voltage versus forward
current
1.4
VF - Forward Voltage - V
DC Current Transfer Ratio CTR
DC Current Transfer Ratio CTR
Saturation Voltage
Collector-Emitter
Coupling Capacitance
Switching Time,
Non-Saturated
I
F
=10 mA
V
CE
=10 V
I
F
=1.0 mA
V
CE
=10 V
I
F
=10 mA,
I
C
=0.5 mA
f=1.0 MHz
1.3
1.2
1.1
1.0
0.9
0.8
0.7
.1
Ta = -55°C
Ta = 25°C
V
CE
sat
C
IO
t
on
,
t
off
Ta = 85°C
I
C
=2.0 mA
R
E
=100
Ω
V
CC
=10 V
RH
≤
50%
1
10
IF - Forward Current - mA
100
Figure 1. Switching waveform
I
F
Figure 4. Normalized non-saturated and
saturated CTR at
T
A
=25
°
C versus LED current
1.5
NCTR - Normalized CTR
1.0
Normalized to:
Vce = 10V, IF = 10mA
Ta = 25°C
CTRce(sat) Vce = 0.4V
t
PHL
0.5
NCTR(SAT)
NCTR
0.0
.1
1
10
IF - LED Current - mA
100
V
O
t
PLH
t
S
50%
t
D
t
R
t
F
Figure 5. Normalized non-saturated and
saturated CTR at
T
A
=50
°
C versus LED current
1.5
NCTR - Normalized CTR
Normalized to:
Vce = 10V, IF = 10mA, Ta = 25°C
CTRce(sat) Vce = 0.4V
Ta = 50°C
Figure 2. Switching schematic
V
CC
=10 V
I
F
=2 mA
F=10 KHz,
D
F
=50%
V
O
R
E
=100
Ω
1.0
0.5
NCTR(SA
T)
NCTR
0.0
.1
1
10
IF - LED Current - mA
100
Figure 6. Normalized non-saturated and
saturated CTR at
T
A
=70
°
C versus LED current
1.5
NCTR - Normalized CTR
Normalized to:
Vce = 10V, IF = 10mA
Ta = 25°C
CTRce(sat) Vce = 0.4V
1.0
0.5
Ta = 70°C
NCTR(SAT)
NCTR
1
10
IF - LED Current - mA
100
0.0
.1
Infineon Technologies, Corp. • Optoelectronics Division • Cupertino, CA (formerly Siemens Microelectronics, Inc.)
www.infineon.com/opto • 1-800-777-4363
2
IL352
April 29, 1999
Figure 7. Normalized non-saturated and saturated CTR
at
T
A
=85
°
C versus LED current
1.5
NCTR - Normalized CTR
Figure 11. Collector base photocurrent versus
LED current
1000
Icb - Collector Base
Photocurrent - µA
1.0
Normalized to:
Vce = 10V, IF = 10mA, Ta = 25°C
CTRce(sat) Vce = 0.4V
Ta = 25°C
100
10
1
.1
.01
Icb = 1.0357 *IF ^1.3631
0.5
Ta = 85°C
NCTR(SAT)
NCTR
1
10
IF - LED Current - mA
100
0.0
.1
.1
1
10
IF - LED Current - mA
- mA
IF - LED Current
100
Figure 8. Collector-emitter current versus temperature
and LED curren
t
35
Ice - Collector Current - mA
Figure 12. Normalized photocurrent versus
I
F
and temperature
Normalized Photocurr ent
Norm alized Photocurrent vs If and Temp
10
Normalized to:
If = 10ma, Ta = 25°C
30
25
20
15
10
5
0
0
10
20
30
40
IF - LED Current - mA
50
60
25°C
85°C
70°C
50°C
1
.1
NIB-Ta=-20°C
NIb,Ta
=25°C
NIb,Ta
=50°C
.01
.1
NIb,Ta
=70°C
1
10
IF - LED Current - mA
If -LED Current- mA
100
Figure 9. Collector-emitter leakage current versus
temperature
Iceo - Collector-Emitter - nA
Figure 13. Propagation delay versus collector
load resistor
1000
T = 25°C, IF = 10mA
a
Vcc = 5 V, Vth = 1.5 V
tpHL
2.5
10
10
4
3
10 2
10
1
Vce = 10V
TYPICAL
100
2.0
10 0
10 -1
10 -2
-20
10
tpLH
1
.1
1.5
0
20
40
60
80
100
Ta - Ambient Temperature - °C
1.0
1
10
100
RL - Collector Load Resistor - KΩ
Figure 10. Normalized CTR
cb
versus LED current
and temperature
NCTRcb - Normalized CTRcb
1.5
Normalized to:
IF =10 mA
Vcb = 9.3 V
Ta = 25°C
1.0
0.5
25°C
50°C
70°C
.1
1
10
IF - LED Current - mA
100
0.0
Infineon Technologies, Corp. • Optoelectronics Division • Cupertino, CA (formerly Siemens Microelectronics, Inc.)
www.infineon.com/opto • 1-800-777-4363
3
IL352
April 29, 1999
tpLH - Propagation Delay - µs
tpLH - Propagation Delay - µs
10
5
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