QSE157 Fairchild Semiconductor, QSE157 Datasheet - Page 6

• Manufacturer Part Number: QSE157
• Description: Photodiodes LOGIC DETECTOR
• Manufacturer: Fairchild Semiconductor
• Type: Optoschmittr

Specifications of QSE157

• Peak Wavelength: 880 nm
• Half Intensity Angle Degrees: 50 deg
• Maximum Power Dissipation: 100 mW
• Maximum Rise Time: 70 ns
• Maximum Fall Time: 70 ns
• Package / Case: Side Looker
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

©1.0.0 Fairchild Semiconductor Corporation
QSE156/C, QSE157/C, QSE158/C, QSE159/C Rev. 1.0.0
0 mA
Fig. 9 Switching Times Definition for Buffers
t
V
PLH
OL
Output
V
O
V
t
r
OH
10%
90%
t
PHL
t
f
R = 360
R = 180
1
2
50%
10%
90%
Pulse
Generator
V = 5V
f = 10 KHz
d.c. = 50%
O
50%
Fig. 8 Switching Speed Test Circuit
R
C
2
2
C = 15 pf
C = 20 pf
6
1
2
R
C
0 mA
1
1
C and C include probe and
stray wire capacitance
Fig. 10 Switching Times Definition for Inverters
t
V
1
PHL
OH
.1 uf
bypass
5V
GND
Output
V
t
f
2
O
V
OL
10%
90%
t
PLH
t
r
www.fairchildsemi.com
10%
90%
50%