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6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
CNX35U CNX36U CNX38U DESCRIPTION
The CNX35U, CNX36U CNX38U and CNX39U are optically coupled isolators consisting of an infrared emitting GaAs diode and a silicon NPN phototransistor with accessible base. These devices are housed in 6-pin dual-inline packages (DIP).
CNX39U
FEATURES
* * * * High output/input DC current transfer ratio Low saturation voltage UL recognized (File # E90700) VDE recognized (File # 94766) -Ordering option `300' (e.g. CNX35U.300)
6 1
6
1
SCHEMATIC
6 1
APPLICATIONS
* * * * * Power supply regulators Digital logic inputs Microprocessor inputs Appliance sensor systems Industrial controls
ANODE 1
6 BASE
CATHODE 2
5 COL
3
4 EMITTER
Parameters TOTAL DEVICE Storage Temperature Operating Temperature Lead Solder Temperature EMITTER Continuous Reverse Voltage Continuous Forward Current Forward Current - Peak (10 s pulse, = 0.01) Total Power Dissipation up to 25C Ambient Derate Linearly from 25C DETECTOR Collector to Emitter Voltage (open base) Collector to Base Voltage (open emitter) Emitter to Collector Voltage (open base) DC Collector Current Detector Power Dissipation up to 25C Ambient Derate Linearly from 25C
Symbol TSTG TOPR TSOL VR IF IF(pk) PD VCEO VCBO VECO IC PD
Device All All All All All All All All CNX38U CNX35U, CNX36U, CNX39U CNX38U CNX35U, CNX36U, CNX39U All All All All
Value -55 to +150 -40 to +100 260 for 10 sec 5 100 3.0 200 2.0 80 30 120 70 7 100 200 2.0
Units C C C V mA A mW mW/C V V V mA mW mW/C
2001 Fairchild Semiconductor Corporation DS300401 5/23/01
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6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
CNX35U CNX36U CNX38U ELECTRICAL CHARACTERISTICS
(TA = 25C Unless otherwise specified.)
CNX39U
INDIVIDUAL COMPONENT CHARACTERISTICS
Parameters EMITTER Input Forward Voltage Reverse Current DETECTOR Leakage Current Collector to Emitter IF = 10 mA VR = 5 V VCE = 10 V VCE = 50 V VCE = 10 V, TA = 70C VCE = 50 V, TA = 70C VCE = 10 V Breakdown Voltage Collector to Emitter Collector to Base Emitter to Collector IC = 1 mA, IF = 0 IC = 0.1 mA, IF = 0 IE = 0.1 mA, IF = 0 BVCEO BVCBO BVECO CNX35U,CNX36U,CNX39U CNX38U CNX35U,CNX36U,CNX39U CNX38U All 30 80 70 120 7 V V V ICBO ICEO VF IR All All CNX35U,CNX36U,CNX39U CNX38U CNX35U,CNX36U,CNX39U CNX38U All 2 2 1.15 1.5 10 50 50 10 10 20 V A nA nA A A nA Test Conditions Symbol Device Min Typ Max Units
ISOLATION CHARACTERISTICS
Characteristic Input-Output Isolation Voltage Isolation Resistance Isolation Capacitance Test Conditions t = 1 min. VI-O = 500 VDC IF =0, V = 0V, f = 1 MHz Symbol VISO RISO CISO Min 5,300 1 10 0.6 1.3 Typ Max Units VRMS T! pF
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6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
CNX35U CNX36U CNX38U TRANSFER CHARACTERISTICS
DC Characteristics (TA = 25C Unless otherwise specified.) Symbol Device CNX35U IF = 10 mA, VCE = 0.4 V Output/Input Current Transfer Ratio IF = 10 mA, VCE = 10 V IF = 16 mA, VCE = 0.4 V IF = 2 mA, VCE = 5 V Collector-Emitter Saturation Voltage AC Characteristics Non-Saturated Switching Times Turn-On Time See Fig. 1 and Fig. 2 RL = 100 , IC = 2 mA, VCC = 5 V RL = 100 , IC = 4 mA, VCC = 5 V RL = 100 , IC = 2 mA, VCC = 5 V RL = 100 , IC = 4 mA, VCC = 5 V Saturated Switching Times Turn-On Time See Fig. 1 and Fig. 2 RL = 1 k, IC = 2 mA, VCC = 5 V RL = 1 k, IC = 4 mA, VCC = 5 V RL = 1 k, IC = 2 mA, VCC = 5 V RL = 1 k, IC = 4 mA, VCC = 5 V ton ton IF = 10 mA, IC = 2 mA IF = 10 mA, IC = 4 mA IF = 16 mA, IC = 2 mA Test Conditions Symbol VCE(SAT) CTR CNX39U CNX36U CNX38U All CNX35U, CNX39U CNX36U CNX38U Device CNX35U CNX39U CNX36U CNX38U CNX35U Turn-Off Time See Fig. 1 and Fig. 2 toff CNX39U CNX36U CNX38U CNX35U CNX39U CNX36U CNX38U CNX35U Turn-Off Time See Fig. 1 and Fig. 2 toff CNX39U CNX36U CNX38U Min Min 40 60 80 70 50 15 0.15 0.19 0.2 Typ 0.4 0.4 0.4 Max 20 20 20 20 20 20 20 20 50 50 50 50 50 50 50 50 s s s s V Units Typ Max 160 100 200 210 % Units
CNX39U
Test Conditions
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6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
CNX35U CNX36U CNX38U CNX39U
VI
VI
+VCC
0 VO 90%
VO 50 RL
0 ton toff 10%
Fig. 1 Switching Test Circuit
Fig. 2 Switching Test Waveforms
Fig. 3 LED Forward Voltage vs. Forward Current
1.8
Fig. 4 Normalized CTR vs. Forward Current
1.5
VF - FORWARD VOLTAGE (V)
VCE = 5.0V
1.6
TA = 25 oC
Normalized to IF = 10mA
NORMALIZED CTR
100
1.0
1.4
TA = -55oC
TA = 25oC 1.2 TA = 100 C
o
0.5
1.0 1 10
0.0 0 5 10 15 20
IF - LED FORWARD CURRENT (mA)
FORWARD CURRENT - I F (mA)
Fig. 5 Normalized CTR vs. Temperature
IF = 10mA 1.0 IF = 5mA IF = 20mA 0.8
Fig. 6 CTR vs. RBE (Unsaturated)
NORMALIZED CTR ( CTRRBE / CTRRBE(OPEN))
1.0 0.9 0.8 IF = 20mA 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 IF = 5mA IF = 10mA VCE = 5.0V
1.2
NORMALIZED CTR
0.6
0.4
Normalized To CTR at: IF =10mA VCE = 5V TA = 25oC
0.2 -75 -50 -25 0 25 50
o
75
100
125
10
100
1000
AMBIENT TEMPERATURE T A - ( C)
RBE - BASE RESISTANCE (k )
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6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
CNX35U CNX36U CNX38U
Fig. 7 CTR vs. RBE (Saturated)
NORMALIZED CTR ( CTRRBE / CTRRBE(OPEN))
1.0
CNX39U
Fig. 8 Normalized ton vs. RBE
5.0 VCC = 10V IC = 2mA RL = 100
0.8 IF = 20mA 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 10 100 IF = 5mA IF = 10mA
VCE = 0.3V
/ ton(open) )
BE
0.9
4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0
1000
NORMALIZED ton - (ton(R
)
10
100
1000
10000
100000
RBE - BASE RESISTANCE (k )
RBE - BASE RESISTANCE (k )
Fig. 9 Normalized toff vs. RBE
1.4 1.3 1.2 1.1 VCC = 10V IC = 2mA RL = 100 NORMALIZED TO t off AT RBE = OPEN
Fig. 10 Switching Speed vs. Load Resistor
1000 VCC = 10V IC = 2mA
SWITCHING SPEED - (s)
100
RL = 100
NORMALIZED toff
1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 10 100 1000 10000
Toff 10 Tf
Ton 1 Tr
0.1 0.1 1 10 100
RBE - BASE RESISTANCE (k )
RL - LOAD RESISTOR (k)
Fig. 11 Collector-Emitter Saturation Voltage as a Function of Collector Current
10
1
IB = 0; T A = 25oC
VCEsat - (V)
0.1
IF = 2.5mA
0.01
IF = 5mA 0.001 0.01 0.1
IF = 10mA
IF = 20mA
1
10
IC - (mA)
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6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
CNX35U CNX36U CNX38U Package Dimensions (Through Hole)
PIN 1 ID.
CNX39U
Package Dimensions (Surface Mount)
0.350 (8.89) 0.330 (8.38)
3 0.270 (6.86) 0.240 (6.10)
2
1
PIN 1 ID.
0.270 (6.86) 0.240 (6.10)
SEATING PLANE
0.350 (8.89) 0.330 (8.38) 0.070 (1.78) 0.045 (1.14)
4
5
6
0.070 (1.78) 0.045 (1.14)
0.300 (7.62) TYP
0.200 (5.08) 0.135 (3.43)
0.200 (5.08) 0.165 (4.18) 0.020 (0.51) MIN 0.016 (0.40) 0.008 (0.20) 0.022 (0.56) 0.016 (0.41) 0.300 (7.62) TYP 0.020 (0.51) MIN 0.100 (2.54) TYP
0.016 (0.41) 0.008 (0.20)
0.154 (3.90) 0.100 (2.54)
0.016 (0.40) MIN 0.315 (8.00) MIN 0.405 (10.30) MAX
0.022 (0.56) 0.016 (0.41) 0.100 (2.54) TYP
0 to 15
Lead Coplanarity : 0.004 (0.10) MAX
Package Dimensions (0.4"Lead Spacing)
Recommended Pad Layout for Surface Mount Leadform
0.270 (6.86) 0.240 (6.10)
0.070 (1.78)
0.060 (1.52)
0.350 (8.89) 0.330 (8.38) 0.070 (1.78) 0.045 (1.14)
0.415 (10.54)
0.100 (2.54) 0.030 (0.76)
SEATING PLANE
0.295 (7.49)
0.200 (5.08) 0.135 (3.43)
0.154 (3.90) 0.100 (2.54)
0.004 (0.10) MIN
0.016 (0.40) 0.008 (0.20)
0.022 (0.56) 0.016 (0.41) 0.100 (2.54) TYP
0 to 15 0.400 (10.16) TYP
NOTE All dimensions are in inches (millimeters)
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6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
CNX35U CNX36U CNX38U ORDERING INFORMATION
Option
S SD W 300 300W 3S 3SD
CNX39U
Order Entry Identifier
.S .SD .W .300 .300W .3S .3SD
Description
Surface Mount Lead Bend Surface Mount; Tape and reel 0.4" Lead Spacing VDE 0884 VDE 0884, 0.4" Lead Spacing VDE 0884, Surface Mount VDE 0884, Surface Mount, Tape & Reel
Carrier Tape Specifications ("D" Taping Orientation)
12.0 0.1 4.85 0.20 4.0 0.1 0.30 0.05 4.0 0.1 O1.55 0.05 1.75 0.10
7.5 0.1 13.2 0.2 16.0 0.3 9.55 0.20
0.1 MAX
10.30 0.20
O1.6 0.1
User Direction of Feed
NOTE All dimensions are in inches (millimeters)
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6-PIN PHOTOTRANSISTOR OPTOCOUPLERS
CNX35U CNX36U CNX38U CNX39U
DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body,or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
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