Fig. 19 Error Signal "H-L" Delay Time vs.
Ambient Temperature
1.5
VCC = 24V
IF = 10mA
RFS = 1.8k Ω
1.2
RG = 47 Ω
CG = 3 000pF
RC = 1k Ω
CP = 1 000pF
0.9
0.6
0.3
0
- 25
0
25
50
75
100
Ambient temperature Ta (˚C)
Fig. 21 Low Level Error Signal Voltage vs.
Ambient Temperature
0.5
VCC = 24V
IF = 10mA
IFS = 10mA
0.4 RG = 47Ω
CG = 3 000pF
C = OPEN
0.3
0.2
0.1
0
- 25
0
25
50
75
100
Ambient temperature Ta (˚C)
Fig. 23 Error Signal Output Pulse Width vs.
Ambient Temperature
50
VCC = 24V
IF = 10mA
RFS = 1.8k Ω
40 RG = 47Ω
CG = 3 000pF
RC = 1k Ω
30 CP = 1 000pF
20
10
0
- 25
0
25
50
75
100
Ambient temperature Ta (˚C)
PC928
Fig. 20 O2 Output Voltage at Protection from
Overcurrent vs. Ambient Temperature
2
VCC = 24V
IF = 10mA
1.6
RG = 47 Ω
CG = 3 000pF
RC = 1k Ω
CP = 1 000pF
1.2
0.8
0.4
0
- 25
0
25
50
75
100
Ambient temperature Ta (˚C)
Fig. 22 High Level Error Signal Current vs.
Ambient Temperature
10 - 6
VCC = 24V
IF = 10mA
VFS = 24V
RG = 47Ω
CG = 3 000pF
10 - 7 VC = 0V
10 - 8
10 - 9
- 25
0
25
50
75
100
Ambient temperature Ta (˚C)