OP793A

Prod uct Bul le tin OP793, OP798
Sep tem ber 1999
NPN Phototransistor with Base-Emitter Resistor
Types OP793, OP798 Series
OP793
OP798
NOTE: Dimensions not shown on OP798
are common with OP793.
Dimensions are in inches (millimeters).
Features
Ab so lute Maxi mum Rat ings (TA = 25o C un less oth er wise noted)
• Variety of sensitivity ranges
• TO-18 equivalent package style
• Base-emitter resistor provides ambient
Collector- Emitter Volt age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V
Emit ter Re verse Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mA
Con tinu ous Col lec tor Cur rent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Stor age and Op er at ing Tem pera ture Range . . . . . . . . . . . . . . . . . . -40 o C to +100 o C
Lead Sol der ing Tem pera ture [1/16 inch (1.6 mm) from case for 5 sec. with sol der ing
iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260o C(1)
Power Dis si pa tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 mW(2)
light protection
Description
The OP793/OP798 series consists of
NPN silicon phototransistors molded in
dark blue epoxy packages. These
devices are 100% production tested
using infrared light for close correlation
with Optek’s GaAs and GaAlAs emitters.
Notes:
(1) RMA flux is recommended. Duration can be extended to 10 sec. max. when flow soldering.
Max. 20 grams force may be applied to leads when soldering.
(2) Derate linearly 3.33 mW/o C above 25o C.
(3) VCE = 5 V. Light source is an unfiltered GaAlAs emitting diode operating at peak emission
wavelength of 890 nm and Ee(APT) of 1.7 mW/cm2 average within a .250" dia. aperture.
(4) The knee point irradiance is defined as the irradiance required to increase IC(ON) to 50 µA.
Typi cal Per form ance Curves
The phototransistor has an internal baseemitter resistor which provides protection
from low level ambient lighting
conditions. This feature is also useful
when the media being detected is semitransparent to infrared light in interruptive
applications.
Typi cal Spec tral Re sponse
Schematic
Wave length - nm
Op tek Tech nol ogy, Inc.
1215 W. Crosby Road
Car roll ton, Texas 75006
(972) 323- 2200
Fax (972) 323- 2396
Types OP793, OP798 Series
o
Elec tri cal Char ac ter is tics(TA = 25 C un less oth er wise noted)
SYMBOL
PARAMETER
MIN
TYP MAX UNITS
TEST CON DI TIONS
On-State Collector Current
IC(ON)
OP793A
OP793B
OP793C
OP793D
2.45
1.65
0.90
0.90
7.50
4.55
3.05
7.50
OP798A
OP798B
OP798C
OP798D
4.90
3.30
1.90
1.90
15.0
9.20
6.10
15.0
mA
VCE = 5 V, E e = 1.7 mW/cm2(3)
mA
VCE = 5 V, Ee = 1.7 mW/cm2(3)
On-State Collector Current
IC(ON)
EKP
Knee Point Irradiance
OP793
OP798
.10
.04
mW/cm2
VCE = 5 V(4)
ICEO
Collector-Emitter Dark Current
100
nA
VCE = 10 V, Ee = 0
IECO
Emitter-Reverse Current
100
µA
VCE = 0.4 V
V
IC = 100 µA
V
IC = 0.4 mA, Ee = 1.7 mW/cm2(3)
V(BR)ECO
Collector-Emitter Breakdown Voltage
VCE(SAT)
Collector-Emitter Saturation Voltage
30
0.4
Op tek re serves the right to make changes at any time in or der to im prove de sign and to sup ply the best prod uct pos si ble.
Op tek Tech nol ogy, Inc.
1215 W. Crosby Road
Car roll ton, Texas 75006
(972) 323- 2200
Fax (972) 323- 2396
Types OP793, OP798 Series
On- State Col lec tor Cur rent
vs. Irradiance
On- State Col lec tor Cur rent
vs. Irradiance
100
100
10
10
1
1
OP593
OP598
.1
V CE = 5 V
LED: λ = 890 nm
.1
VCE = 5 V
LED: λ = 890 nm
.01
.01
.001
OP798
.001
.0001
.0001
OP793
.00001
.001
.01
.1
1
10
.00001
.001
Ee - Irradiance - mW/cm2
.01
.1
10
1
E e - Irradiance - mW/cm2
Typ i cal Rise and Fall Time vs.
Load Resistance
Nor mal ized Out put vs. Frequency
120
1.0
V RL = 1 V
V CE = 5 V
50% Duty Cycle
LED: λ = 935 nm
VCC = 5 V
VRL = 1 V
f = 100 Hz
PW = 1 mS
LED = GaAIAs, λ = 890 nm
VRL is voltage across RL
105
90
75
60
0.5
R L = 1KΩ
45
30
R L = 10KΩ
15
0.0
1
10
100
1000
0
0
Frequency -- KHz
2
4
6
8
10
RL - Load Resistance - KΩ
Nor mal ized Light and Dark Current
vs. Am bi ent Tem pera ture
Op tek Tech nol ogy, Inc.
1215 W. Crosby Road
Car roll ton, Texas 75006
(972) 323- 2200
Fax (972) 323- 2396