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IL352
Phototransistor Optocoupler
Preliminary Data Sheet
FEATURES * Good CTR Linearity Depending on Forward Current * Isolation Test Voltage, 2500 VRMS * High Collector-Emitter Voltage, VCEO=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 phototransistor detector. The component is housed in a thin line package. The coupling device is designed for signal transmission between two electrically separated circuits. The potential difference between the circuits to be coupled must not exceed the maximum permissible reference voltages. Maximum Ratings Emitter Reverse Voltage...............................................6 V DC Forward Current .................................. 60 mA Total Power Dissipation .............................50 mW Derate Linearly from 25C .................0.66 mW/C Detector Collector-Emitter Voltage ..............................70 V Emitter-Base Voltage ......................................7 V Collector Current ...................................... 50 mA Collector Current (t 1 ms) ...................... 100 mA Total Power Dissipation............................150 mW Derate Linearly from 25C ...................2.5 mW/C Package Isolation Test Voltage (between emitter and detector referred to climate DIN 40046, part 2, Nov. 74) .............2500 VRMS Isolation Resistance VIO=500 V, TA=25C.............................1012 VIO=500 V, TA=100C...........................1011 Storage Temperature Range .....-40C to +150C Ambient Temperature Range.......-40C to +85C Junction Temperature .................................100C Soldering Temperature (max 10 s, Dip Soldering Distance to Seating Plane 1.5 mm)......................260C *TRansparent IOn Shield Dimensions in Inches (mm)
Pins 6&7 N.C 1 A2 K3 N.C 4 .230 (5.84) .224 (5.69) .017 (.43) .013 (.33) .047 (1.19) .037 (.94) .083 (2.1) .075 (1.9) .040 (1.02) .036 (.91) .050 (1.27) Typ. .016 (.41) Typ. .006 (.15) 10 Typ. All 8 sides 40 3-7 8B 7 C 6 5E .301 (7.65) .281 (7.14)
.224 (5.7) .346 (8.79) .216 (5.5) .326 (8.3) Pin One ID
Characteristics (TA=25C)
Emitter Forward Voltage Reverse Current Capacitance Detector Breakdown Voltage Collector-Emitter Emitter-Collector Collector-Emitter Leakage V BVCEO BVECO ICEO 30 7 5 50 nA IC=1 mA IE=100 A VCE=10 V IF=0 TA=25C VCE=30 V IF=0 TA=85C IC=100 A VCE=0 Sym. VF IR CO Min. Typ. 1.3 0.1 25 Max. 1.5 10 Units V A pF Condition IF=10 mA VR=6.0 V VR=0 f=1 MHz
500
A
Collector to Base Capacitance Collector-Emitter
BVCBO CCE
70 6
V pF
1
Characteristics (TA=25C) -- continued
Package DC Current Transfer Ratio DC Current Transfer Ratio Saturation Voltage Collector-Emitter Coupling Capacitance Switching Time, NonSaturated Sym CTR CTR VCEsat CIO Ton, Toff 0.5 10 Min. 100 34 0.3 Typ. Max. Units % % V pF s Condition IF=10 mA VCE=10 V IF=10 mA VCE=10 V
Figure 3. Forward voltage versus forward current
1.4
VF - Forward Voltage - V
1.3 1.2 1.1 1.0 0.9 0.8 0.7 .1
Ta = -55C Ta = 25C
IC=0.5 mA
f=1.0 MHz IC=2 mA RE=100 VCC=10 V RH50%
IF=10 mA,
Ta = 85C
1 10 IF - Forward Current - mA
100
Figure 4. Normalized non-saturated and saturated CTR at TA=25C versus LED current
1.5
NCTR - Normalized CTR
Figure 1. Switching waveform
IF
1.0
Normalized to: Vce = 10V, IF = 10mA Ta = 25C CTRce(sat) Vce = 0.4V
0.5 NCTR(SAT) NCTR 0.0 .1 1 10 IF - LED Current - mA 100
t PHL
VO
t PLH tS
50%
tD
tR
tF
Figure 5. Normalized non-saturated and saturated CTR at TA=50C versus LED current
1.5 NCTR - Normaliz ed CTR Normalized to: Vce = 10V, IF = 10mA, Ta = 25C CTRce(sat) Vce = 0.4V Ta = 50C
Figure 2. Switching schematic
VCC=10 V IF=2 mA F=10 KHz, DF=50% VO RE=100
1.0
0.5 NCTR(SA T) NCTR 0.0 .1 1 10 IF - LED Current - mA 100
Figure 6. Normalized non-saturated and saturatedCTR at TA=70C versus LED current
1.5
NCTR - Norm alized CTR
Normalized to: Vce = 10V, IF = 10mA Ta = 25C CTRce(sat) Vce = 0.4V
1.0
0.5 Ta = 70C NCTR(SAT) NCTR 1 10 IF - LED Current - mA 100
0.0 .1
2
IL352
Figure 7. Normalized non-saturated and saturated CTR at TA=85C versus LED current
1.5
NCTR - Normalized CTR
Figure 11. Collector base photocurrent versus LED current
1000
Icb - Collector Base Photocurrent - A
1.0
Normalized to: Vce = 10V, IF = 10mA, Ta = 25C CTRce(sat) Vce = 0.4V
Ta = 25C 100 10 1 .1 .01 Icb = 1.0357 *IF ^1.3631
0.5 Ta = 85C 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 current
35
Ice - Collector Current - mA
Figure 12. Normalized photocurrent versus IF Normalized Photocurrent vs If and Temp and temperature
Normalized Photocurrent
10
Normalized to: If = 10ma, Ta = 25C
30 25 20 15 10 5 0 0 10 20 30 40 IF - LED Current - mA 50 60 25C 85C 70C 50C
1
.1
NIB-Ta=-20C NIb,Ta=25C NIb,Ta=50C NIb,Ta=70C
.01 .1
1 10 IfIF - LED Current - mA -LED Current- mA
100
Figure 9. Collector-emitter leakage current versus temperature
Iceo - Collector-Emitter - nA
Figure 13. Propagation delay versus collector load resistor
tpLH - Propagation Delay - s
1000 T = 25C, IF = 10mA a Vcc = 5 V, Vth = 1.5 V tpHL 2.5
10 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 - K
Figure 10. Normalized CTRcb versus LED current and temperature
NCTRcb - Normalized CTRcb
1.5 Normalized to: IF =10 mA Vcb = 9.3 V Ta = 25C
1.0
0.5
25C 50C 70C .1 1 10 IF - LED Current - mA 100
0.0
tpLH - Propagation Delay - s
IL352
5
3

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