
Features
l Photo IC for precision printing
Stable output versus laser power or temperature variations
l S5049-02: For detection of high-speed, high power
laser beams
l S5049-03: For detection of low power laser beams
Applications
l Print start timing detection for laser printers, digital copiers,
fax machines, etc.
PHOTO
IC
Photo IC for laser beam synchronous detection
Photo IC for start timing detection for precise printing
S5049 series
S5049 uses a dual-element PIN photodiode and compares the two photocurrent signals to maintain a highly stable output even when input laser
power or ambient temperature fluctuates. Two types of sensors are available to meet different operating conditions.
s
Absolute maximum ratings (Ta=25 °C, Vcc1=Vcc2=Vcc)
Parameter
Symbol
Value
Unit
Supply voltage
Vcc
-0.5 to +7
V
Power dissipation *1
P
150
mW
Output voltage
Vo
-0.5 to Vcc
V
Output current
Io
20
mA
Ro1, Ro2 terminal current
IRO
5mA
Operating temperature
Topr
-25 to +80
°C
Storage temperature
Tstg
-40 to +85
°C
Soldering
-
230 °C, 5 s
-
*1: Derate power dissipation at a rate of 2 mW/°C above Ta=25 °C.
s
Electrical and optical characteristics (Ta=25 °C, λ=780 nm, Vcc1=Vcc2=Vcc=5 V, Ro1=Ro2=5.1 k, unless otherwise noted)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Supply voltage
Vcc
4.5
5.0
5.5
V
High level output voltage
VOH
Pin=0
4.9
-
V
Low level output voltage
VOL
Pin=200 W, IOL=10 mA
-0.4
0.6
V
Pin=0, at high level output
-
4.0
6.0
mA
Current consumption
ICC
Pin=200 W, at low level output
-
6.0
9.0
mA
S5049-02
40
55
70
W
Threshold input power
PTH
S5049-03
25
35
45
W
H→L propagation delay time variation
tPHL
-
±10
ns
L→H propagation delay time variation
tPLH
-
±50
-ns
Rise time
tr
-
60
180
ns
Fall time
tf
Pin=200 W at center
Pin=±10 % *2
RL=510 , CL=15 pF
-20
100
ns
*2: Beam diameter φ (1/e2) =100 m, scan speed=0.5 mm/s
Not including jitter caused by polygon mirror non-uniformity, etc.