CNZ2152 Datasheet, PDF (1/2 Pages) Panasonic Semiconductor – Reflective Photosensor

Reflective Photosensors (Photo Reflectors)
CNZ2152
Reflective Photosensor
Overview
CNZ2152 is a photosensor detecting the change of reflective light
in which a high efficiency GaAs infrared light emitting diode is used
as the light emitting element, and a high sensitivity Si phototransistor
is used as the light detecting element. The two elements are located
parallel in the same direction and objects are detected when passing
in front of the device.
Features
Fast response
High sensitivity
High SN ratio
Applications
Detection of paper, film and cloth Optical mark reading
Detection of coin and bill
Detection of position and edge
Start, end mark detection of magnetic tape
Absolute Maximum Ratings (Ta = 25˚C)
Parameter
Symbol Ratings Unit
Reverse voltage (DC) V_R
3
V
Input (Light
Forward current (DC)
emitting diode)
I_F
100
mA
Power dissipation
P_D*1
150
mW
Collector to emitter voltage V_CEO 20
V
Output (Photo Emitter to collector voltage VECO
3
V
transistor) Collector current
I_C
30
mA
Collector power dissipation P_C*2
150
mW
Temperature
Operating ambient temperature T_opr –25 to +85 ˚C
Storage temperature
T_stg –30 to +100 ˚C
Mark for
indicating
LED side
ø1.5
Unit : mm
14.0
+0.1
–0.2
16.0±0.3 _{ø2.2±0.2}
,,,,,,, _(10.0)
ø0.9^{+–00..21}
4-ø0.45
2
3
,,, ₁
4
(2.54)
1 23
4
Pin connection
(Note) ( ) Dimension is reference
*1 _{Input power derating ratio is}
2.0 mW/˚C at Ta ≥ 25˚C.
*2 _{Output power derating ratio is}
2.0 mW/˚C at Ta ≥ 25˚C.
Electrical Characteristics (Ta = 25˚C)
Parameter
Symbol
Conditions
min typ max Unit
Input
Forward voltage (DC)
V_F I_F = 100mA
1.25 1.5 V
characteristics _{Reverse current (DC)}
I_R V_R = 3V
10 µA
Output characteristics Collector cutoff current
I_CEO V_CE = 10V
0.05 2
µA
Collector current
Transfer
I_C*1
I_C*2
V_CC = 5V, I_F = 20mA, R_L = 100Ω
0.8
3
500
mA
µA
characteristics Response time
t_r*3 , t_f*4 V_CC = 10V, I_C = 1mA, R_L = 100Ω
8
µs
Collector to emitter saturation voltage V_CE(sat) I_F = 100mA, I_C = 1mA
0.6 V
*1 *2 _{Transfer characteristics measurement circuit}
(Ambient light is shut off completely)
I_F
I_C ^VCC
*3 _{Time required for the collector current to increase from}
10% to 90% of its final value.
*4 _{Time required for the collector current to decrease from}
90% to 10% of its initial value.
d = 5 mm
,
,,,^RL,
*1 _{Standard white paper (reflective ratio 90%)}
Test paper _{*2 Tracing paper (paper SM-1 for 2nd original paper)}
1