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Details, datasheet, quote on part number:FOD070L
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Datasheet text preview:
LVTTL/LVCMOS COMPATIBLE LOW INPUT CURRENT HIGH GAIN SPLIT DARLINGTON OPTOCOUPLERS
SINGLE CHANNEL: DUAL CHANNEL:
DESCRIPTION
The FOD070L, FOD270L and FOD073L optocouplers consist of an AlGaAs LED optically coupled to a high gain split darlington photodetector. These devices are specified to operate at a 3.3V supply voltage. The split darlington configuration separating the input photodiode and the first stage gain from the output transistor permits lower output saturation voltage and higher speed operation than possible with conventional darlington phototransistor optocoupler. In the dual channel device FOD073L, an integrated emitter base resistor provides superior stability over temperature. The combination of a very low input current of 0.5 mA and a high current transfer ratio of 2000% makes this family particularly useful for input interface to MOS, CMOS, LSTTL and EIA RS232C, while output compatibility is ensured to LVCMOS as well as high fan-out LVTTL requirements. An internal noise shield provides exceptional common mode rejection of 10 kV/µs.
8 1 8 1
FOD070L FOD073L
FOD270L
8 1
FEATURES
· Low power consumption · Low input current - 0.5 mA · Available in single channel 8-pin DIP (FOD270L), 8-pin SOIC (FOD070L) and dual channel 8-pin SOIC · High CTR-2000% · High CMR-10 kV/µs · Guaranteed performance over temperature 0°C to 70°C · U.L. recognized (File # E90700) · LVTTL/LVCMOS Compatible output
N/C 1 8 VCC +1 V +2 VF _ 3 6 VO _ V N/C 4 5 GND 3 6 V02 7 VB
F1
8 VCC
_2
7 V01
F2
+4
5 GND
FOD070L / FOD270L
FOD073L
APPLICATIONS
· · · · · · Digital logic ground isolation LVTTL/LVCMOS Telephone ring detector EIA-RS-232C line receiver High common mode noise line receiver µP bus isolation Current loop receiver
TRUTH TABLE
LED ON OFF VO LOW HIGH
© 2004 Fairchild Semiconductor Corporation
Page 1 of 17
8/10/04
LVTTL/LVCMOS COMPATIBLE LOW INPUT CURRENT HIGH GAIN SPLIT DARLINGTON OPTOCOUPLERS
SINGLE CHANNEL: DUAL CHANNEL: FOD070L FOD073L FOD270L
ABSOLUTE MAXIMUM RATINGS (No derating required up to 85°C)
Parameter Storage Temperature Operating Temperature Lead Solder Temperature (Wave solder only. See reflow profile for surface mount devices) EMITTER DC/Average Forward Input Current Peak Forward Input Current (50% duty cycle, 1 ms P.W.) Peak Transient Input Current - (1 µs P.W., 300 pps) Reverse Input Voltage Input Power Dissipation DETECTOR Average Output Current Emitter-Base Reverse Voltage (FOD070L, FOD270L) Supply Voltage, Output Voltage Output power dissipation Each Channel Each Channel Each Channel Each Channel IO (avg) VEB VCC, VO PD 60 0.5 -0.5 to 7 100 mA V V mW Each Channel Each Channel Each Channel Each Channel Each Channel IF (avg) IF (pk) IF (trans) VR PD 20 40 1.0 5 35 mA mA A V mW Symbol TSTG TOPR TSOL Value -40 to +125 -40 to +85 260 for 10 sec Units °C °C °C
ELECTRICAL CHARACTERISTICS (TA = 0 to 70°C Unless otherwise specified) INDIVIDUAL COMPONENT CHARACTERISTICS
Parameter EMITTER Input Forward Voltage Input Reverse Breakdown Voltage DETECTOR Logic high output current Test Conditions TA =25°C Each Channel (IF = 1.6 mA) (TA =25°C, IR = 10 µA) Each Channel (IF = 0 mA, VO = VCC = 3.3 V) Each Channel Logic Low Supply Current IF = 1.6 mA, VO = Open, VCC = 3.3V IF1 = IF2 = 1.6mA VO1 = VO2 = Open, VCC = 3.3 V IF = 0 mA, VO = Open, VCC = 3.3V IF1 = IF2 = 0mA VO1 = VO2 = Open, VCC = 3.3 V ICCH ICCL Symbol VF BVR Device All All FOD070L FOD270L FOD073L FOD070L FOD270L FOD073L FOD070L FOD270L FOD073L 0.5 0.8 0.01 0.01 1.5 mA 3 1 µA 2 5.0 Min Typ** 1.35 Max 1.7 1.75 Unit V V
IOH
0.05
25
µA
Logic High Supply Current
**All typicals at TA = 25°C
© 2004 Fairchild Semiconductor Corporation
Page 2 of 17
8/10/04
LVTTL/LVCMOS COMPATIBLE LOW INPUT CURRENT HIGH GAIN SPLIT DARLINGTON OPTOCOUPLERS
SINGLE CHANNEL: DUAL CHANNEL: FOD070L FOD073L FOD270L
TRANSFER CHARACTERISTICS (TA = 0 to 70°C Unless otherwise specified)
Parameter COUPLED Current transfer ratio (Notes 1,2) Logic low output voltage output voltage (Note 2) **All typicals at TA = 25°C Test Conditions Symbol (IF = 0.5 mA, VO = 0.4 V, VCC = 3.3V) (IF = 1.6 mA, IO = 8 mA, VCC = 3.3V) (IF = 5 mA, IO = 15 mA, VCC = 3.3V) VOL CTR Device ALL ALL ALL Min 400 0.07 0.07 Typ** Max 7000 0.3 0.4 V Unit %
SWITCHING CHARACTERISTICS (TA = 0 to 70°C unless otherwise specified., VCC = 3.3 V)
Parameter Propagation delay time to logic low Propagation delay time to logic high Common mode transient immunity at logic high Common mode transient immunity at logic low ** All typicals at TA = 25°C Test Conditions (RL = 4.7 k, IF = 0.5 mA) (Note 2) (Fig. 17) (RL = 4.7 k, IF = 0.5 mA) (Note 2) (Fig. 17) (IF = 0 mA, |VCM| = 10 VP-P) TA = 25°C (RL = 2.2 k) (Note 3) (Fig. 18) (IF = 1.6 mA, |VCM| = 10 VP-P, RL = 2.2 k) TA = 25°C (Note 3) (Fig. 18) Symbol TPHL Device FOD070L FOD270L FOD073L TPLH FOD070L FOD270L FOD073L |CMH| |CML| ALL 1,000 Min Typ** 3 5 50 25 10,000 V/µs 90 µs Max 30 Unit µs
ALL
1,000
10,000
V/µs
© 2004 Fairchild Semiconductor Corporation
Page 3 of 17
8/10/04
LVTTL/LVCMOS COMPATIBLE LOW INPUT CURRENT HIGH GAIN SPLIT DARLINGTON OPTOCOUPLERS
SINGLE CHANNEL: DUAL CHANNEL: FOD070L FOD073L FOD270L
ISOLATION CHARACTERISTICS (TA = 0 to 70°C Unless otherwise specified)
Characteristics Input-output insulation leakage current Test Conditions Symbol (Relative humidity = 45%) (TA = 25°C, t = 5 s) (VI-O = 3000 VDC) (Note 4) (RH 50%, TA = 25°C) (Note 4) ( t = 1 min.) (Note 4) (VI-O = 500 VDC) (Note 4,5) (f = 1 MHz) (RH 45%, VI-I = 500 VDC (Note 6) (VI-I = 500 VDC) (Note 6) (f = 1 MHz) (Note 6) Device Min Typ** Max Unit
II-O
ALL
1.0
µA
Withstand insulation test voltage Resistance (input to output) Capacitance (input to output) Input-Input Insulation leakage current Input-Input Resistance Input-Input Capacitance ** All typicals at TA = 25°C
VISO RI-O CI-O II-I RI-I CI-I
FOD070L FOD073L FOD270L ALL ALL FOD073L FOD073L FOD073L
2500 5000 1012 0.7 0.005 1011 0.03
VRMS pF µA pF
NOTES
1. Current Transfer Ratio is defined as a ratio of output collector current, IO, to the forward LED input current, IF, times 100%. 2. Pin 7 open. (FOD070L and FOD270L only) 3. Common mode transient immunity in logic high level is the maximum tolerable (positive) dVCM/dt on the leading edge of the common mode pulse signal, VCM, to assure that the output will remain in a logic high state (i.e., VO>2.0 V). Common mode transient immunity in logic low level is the maximum tolerable (negative) dVCM/dt on the trailing edge of the common mode pulse signal, VCM, to assure that the output will remain in a logic low state (i.e., VO<0.8 V). 4. Device is considered a two terminal device: Pins 1, 2, 3 and 4 are shorted together and Pins 5, 6, 7 and 8 are shorted together. 5. For dual channel devices, CI-O is measured by shorting pins 1 and 2 or pins 3 and 4 together and pins 5 through 8 shorted together. 6. Measured between pins 1 and 2 shorted together, and pins 3 and 4 shorted together.
© 2004 Fairchild Semiconductor Corporation
Page 4 of 17
8/10/04
LVTTL/LVCMOS COMPATIBLE LOW INPUT CURRENT HIGH GAIN SPLIT DARLINGTON OPTOCOUPLERS
SINGLE CHANNEL: DUAL CHANNEL:
TYPICAL PERFORMANCE CURVES
Fig. 1 Input Forward Current vs Forward Voltage
100 4500
FOD070L FOD073L
FOD270L
Fig. 2 Current Transfer Ratio vs. Input Forward Current (FOD270L only)
CTR - CURRENT TRANSFER RATIO (%)
VO = 0.4V VCC = 3.3V TA = 25°C
4000 3500 3000 2500 2000 1500
TA = 85°C TA = 70°C TA = 25°C
IF - FORWARD CURRENT (mA)
10
TA = 85°C TA = 70°C TA = -40°C
1
TA = 25°C TA = 0°C
TA = 0°C
0.1
TA = -40°C
0.01
1000 500 0 0.1
0.001 0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1
10
VF - FORWARD VOLTAGE (V)
IF - FORWARD CURRENT (mA)
Fig. 3 Current Transfer Ratio vs. Input Forward Current (FOD070L only)
4500 3500
TA = 85°C TA = 70°C TA = 25°C VO = 0.4V VCC = 3.3V TA = 25°C
Fig. 4 Current Transfer Ratio vs. Input Forward Current (FOD073L only)
CTR - CURRENT TRANSFER RATIO (%)
VO = 0.4V VCC = 3.3V TA = 25°C
CTR - CURRENT TRANSFER RATIO (%)
4000 3500 3000 2500
3000 2500 2000
TA = 85°C TA = 70°C TA = 25°C
TA = 0°C
TA = 0°C
2000 1500 1000 500 0 0.1
TA = -40°C
1500 1000 500 0 0.1
TA = -40°C
1
10
1
10
IF - FORWARD CURRENT (mA)
IF - FORWARD CURRENT (mA)
Fig. 5 DC Transfer Charactersitics (FOD070L, FOD270L)
160 140 TA = 25°C VCC = 3.3V IF = 5mA 140
Fig. 6 DC Transfer Characterstics (FOD073L only)
TA = 25°C VCC = 3.3V 120 IF = 5mA IF = 4.5mA 100 4mA 80 3.5mA 3mA 60 2.5mA 2mA 40 1.5mA 1mA 20 0.5mA
IO - OUTPUT CURRENT (mA)
120 100 80 60 40
4mA 3.5mA 3mA 2.5mA 2mA 1.5mA 1mA
20 0.5mA 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
IO - OUTPUT CURRENT (mA)
IF = 4.5mA
0 0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
V O - OUTPUT VOLTAGE (V)
V O - OUTPUT VOLTAGE (V)
© 2004 Fairchild Semiconductor Corporation
Page 5 of 17
8/10/04
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