PRODUCT DATABOOK 1996/1997
SG1844/SG1845 Series
C
URRENT
-M
ODE
PWM C
ONTROLLER
P
R O D U C T I O N
D
A T A
S
H E E T
CHARACTERISTIC CURVES
FIGURE 5.
— REFERENCE VOLTAGE vs. TEMPERATURE
5.02
FIGURE 6.
— START-UP VOLTAGE THRESHOLD vs.
TEMPERATURE
8.32
5.01
SG1845
Reference Voltage - (V)
V
CC
= 15V
5.00
Reference Voltage - (V)
50
75
100
125
8.30
8.28
8.26
8.24
8.22
8.20
8.18
-75
4.99
4.98
-75
-50
-25
0
25
-50
-25
0
25
50
75
100
125
Junction Temperature - (°C)
Junction Temperature - (°C)
FIGURE 7.
— START-UP VOLTAGE THRESHOLD vs.
TEMPERATURE
16.08
FIGURE 8.
— OSCILLATOR DISCHARGE CURRENT vs.
TEMPERATURE
8.2
16.06
Oscillator Discharge Current - (mA)
8.0
Start Up Voltage - (V)
SG1844
16.04
7.8
16.02
7.6
16.00
7.4
15.98
-75
-50
-25
0
25
50
75
100
125
7.2
-75
-50
-25
0
25
50
75
100
125
Junction Temperature - (°C)
Junction Temperature - (°C)
8
Copyright © 2000
Rev. 1.4 4/00
MICROSEMI [ MICROSEMI CORPORATION ]
