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Motorola Semiconductors |
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
AC Input Phototransistor
Small Outline Surface Mount
Optocoupler
The MOC256 is an AC input phototransistor optocoupler. The device consists
of two infrared emitters connected in anti–parallel and coupled to a silicon NPN
phototransistor detector. They are designed for applications requiring the
detection or monitoring of AC signals. These devices are constructed with a
standard SOIC–8 footprint.
• Guaranteed Current Transfer Ratio CTR of 20% at IF=10 mA
• UL Recognized. File Number E54915
• Industry Standard SOIC–8 Surface Mountable Package
• Standard Lead Spacing of 0.050 inches
• Available in Tape and Reel Option (Conforms to EIA Standard RS481A)
• Bidirectional AC Input (Protection Against Reversed DC Bias)
• Guaranteed CTR Symmetry of 2:1 Maximum
• High Input–Output Isolation of 3000 Vac (rms) Guaranteed
MAXIMUM RATINGS (TA = 25°C unless otherwise noted)
Rating
INPUT LED
Forward Current — Continuous
Forward Current — Peak (PW = 100 µs, 120 pps)
Reverse Voltage
LED Power Dissipation @ TA = 25°C
Derate above 25°C
OUTPUT TRANSISTOR
Collector–Emitter Voltage
Emitter–Base Voltage
Collector Current — Continuous
Detector Power Dissipation @ TA = 25°C
Derate above 25°C
TOTAL DEVICE
Input–Output Isolation Voltage(1)
(60 Hz, 1 sec Duration)
Total Device Power Dissipation @ TA = 25°C
Derate above 25°C
Ambient Operating Temperature Range(2)
Storage Temperature Range(2)
Lead Soldering Temperature (10 sec, 1/16″ from case)
Symbol
IF
IF(pk)
VR
PD
VCEO
VECO
IC
PD
VISO
PD
TA
Tstg
—
Value
Unit
60 mA
1A
6V
90 mW
0.8 mW/°C
30 V
7V
150 mA
150 mW
1.76 mW/°C
3000
Vac(rms)
250
2.94
– 55 to +100
– 55 to +150
260
mW
mW/°C
°C
°C
°C
1. Input–output isolation voltage is an internal device dielectric breakdown rating.
1. For this test, Pins 1 and 2 are common, and Pins 5, 6 and 7 are common.
2. Refer to Quality and Reliability Section in Opto Data Book for information on test conditions.
NOTE: Thickness through insulation between input and output is ≥ 0.5 mm.
Order this document
by MOC256/D
MOC256
Motorola Preferred Device
SMALL OUTLINE
OPTOISOLATORS
AC INPUT
TRANSISTOR OUTPUT
CASE 846–01, STYLE 2
PLASTIC
SCHEMATIC
18
27
36
45
PIN 1. AC IN
2. AC IN
3. N.C.
4. N.C.
5. EMITTER
6. COLLECTOR
7. BASE
8. N.C.
Preferred devices are Motorola recommended choices for future use and best overall value.
REV 1
©MMoottoorroolal,aInOc.p1t9o9e5lectronics Device Data
1
MOC256
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)(1)
Characteristic
Symbol
Min Typ(1) Max
INPUT LED
Forward Voltage
(IF = 10 mA, either direction)
VF — 1.15 1.5
Capacitance (V = 0 V, f = 1 MHz)
CJ — 20 —
OUTPUT TRANSISTOR
Collector–Emitter Dark Current
(VCE = 10 V)
TA = 100°C
ICEO
—
—
1 100
1—
Collector–Base Dark Current (VCB = 10 V)
ICBO
— 0.2 —
Collector–Emitter Breakdown Voltage (IC = 10 mA)
Collector–Base Breakdown Voltage (IC = 100 µA)
Emitter–Collector Breakdown Voltage (IE = 100 µA)
V(BR)CEO
30
45
—
V(BR)CBO
70
100
—
V(BR)ECO
5
7.8 —
DC Current Gain (IC = 2 mA, VCE = 5 V)
Collector–Emitter Capacitance (f = 1 MHz, VCE = 0 V)
Collector–Base Capacitance (f = 1 MHz, VCB = 0 V)
hFE
CCE
CCB
— 500 —
—7—
— 20 —
Emitter–Base Capacitance (f = 1 MHz, VEB = 0 V)
CEB
— 10 —
COUPLED
Output Collector Current
"(IF = 10 mA, VCE = 10 V)
Output Collector Current Symmetry(3)
+ ) +IC at IF
ǒ + + ǓIC at IF
10 mA, VCE
–10 mA, VCE
10 V
10 V
IC (CTR)(5)
—
2 (20)
0.5
15 (150)
1.0
—
2.0
"Collector–Emitter Saturation Voltage (IC = 0.5 mA, IF = 10 mA)
Input–Output Isolation Voltage (f = 60 Hz, t = 1 sec)(4,5)
Isolation Resistance (V = 500 V)(5)
Isolation Capacitance (V = 0 V, f = 1 MHz)(5)
VCE(sat)
VISO
RISO
CISO
—
3000
1011
—
0.1
—
—
0.2
0.4
—
—
—
1. Always design to the specified minimum/maximum electrical limits (where applicable).
2. Current Transfer Ratio (CTR) = IC/IF x 100%.
3. This specification guarantees that the higher of the two IC readings will be no more than 3 times the lower at IF = 10 mA.
4. Input–Output Isolation Voltage, VISO, is an internal device dielectric breakdown rating.
5. For this test, pins 1 and 2 are common, and pins 5, 6 and 7 are common.
Unit
Volts
pF
nA
µA
nA
Volts
Volts
Volts
—
pF
pF
pF
mA (%)
—
Volts
Vac(rms)
Ω
pF
2 Motorola Optoelectronics Device Data
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