HCPL-2631-000E Datasheet, PDF (17/21 Pages) AVAGO TECHNOLOGIES LIMITED – High CMR, High Speed TTL Compatible Optocouplers

PULSE GEN.
Z_O = 50 Ω
t _f = t _r = 5 ns
INPUT VE
MONITORING NODE
1
7.5 mA
I_F
2
3
4
V_CC 8
7
6
5
GND
Figure 13. Test circuit for t_EHL and t_ELH
+5 V
0.1 µF
BYPASS
R_L
OUTPUT V_O
MONITORING
*C_L
NODE
INPUT
V_E
OUTPUT
V_O
t _EHL
t _ELH
3.0 V
1.5 V
1.5 V
*C_L IS APPROXIMATELY 15 pF WHICH INCLUDES
PROBE AND STRAY WIRING CAPACITANCE.
120
V_CC = 5.0 V
V_EH = 3.0 V
V_EL = 0 V
90 ^IF ^{= 7.5 mA}
t_ELH, R_L = 4 kΩ
60
t_ELH, R_L = 1 kΩ
30
t_ELH, R_L = 350 Ω
0
t_EHL, R_L = 350 Ω, 1 kΩ, 4 kΩ
-60 -40 -20 0 20 40 60 80 100
T_A – TEMPERATURE – °C
Figure 14. Typical enable propagation delay vs.
temperature
I_F
B
A
V_FF
SINGLE CHANNEL
1
V_CC 8
2
7
3
6
4
GND ₅
+5 V
0.1 µF
BYPASS
R_L
OUTPUT V_O
MONITORING
NODE
I_F
B
A
V_FF
V_CM
+–
PULSE
GENERATOR
Z_O = 50 Ω
V_CM (PEAK)
VCM
0V
V_O
5V
SWITCH AT A: I_F = 0 mA
V_O (MIN.)
SWITCH AT B: I_F = 7.5 mA
V_{O 0.5 V}
V_O (MAX.)
Figure 15. Test circuit for common mode transient immunity and typical waveforms
DUAL CHANNEL
1
V_CC 8
2
7
3
6
4
GND ₅
V_CM
+–
PULSE
GENERATOR
Z_O = 50 Ω
CM_H
CM_L
R_L
0.1 µF
BYPASS
+5 V
OUTPUT V_O
MONITORING
NODE
17