TCST5250_06 Datasheet, PDF (3/8 Pages) Vishay Siliconix – Transmissive Optical Sensor with Phototransistor Output

TCST5250
Vishay Semiconductors
I_F I_F
0
R_G = 50 Ω
t_{p = 0.01}
T
t _p = 50 µs
20223
50 Ω
+5V
I_C = 1 mA; adjusted by I_F
100 Ω
Channel I
Channel II
Oscilloscope
R _L ≥ 1 MΩ
C_L ≤ 20 pF
Figure 1. Test Circuit for t_on and t_off
I_F
0
I_C
t_p
100 %
90 %
96 11698
t
10 %
0
t_p
t_d
t_r
t_on (=t_d+ t_r )
t_r
t_d
t_on
pulse duration
delay time
rise time
turn-on time
t_s
t_f
t_off
t_s
t_f
t_off (= t_s + t_f)
Figure 2. Switching Times
t
storage time
fall time
turn-off time
Typical Characteristics
T_amb = 25 °C, unless otherwise specified
1000
100
10
1
0.1
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
96 11862
V_F - Forward Voltage (V)
Figure 4. Forward Current vs. Forward Voltage
Document Number 83787
Rev. 1.4, 16-Aug-06
400
300
Coupled device
200
Phototransistor
IR - diode
100
0
0
95 11088
30
60
90
120 150
T_amb - Ambient Temperature (°C)
Figure 3. Power Dissipation Limit vs. Ambient Temperature
2.0
V_CE = 5 V
I_F = 20 mA
1.5
1.0
0.5
0
- 25
95 11089
0
25
50
75 100
T_amb - Ambient Temperature (°C)
Figure 5. Relative Current Transfer Ratio vs.
Ambient Temperature
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