UC3844, 45 UC2844, 45
Figure 7. Reference Voltage Change
versus Source Current
Figure 8. Reference Short Circuit Current
versus Temperature
0
–4.0
–8.0
–12
–16
–20
–24
110
V
= 15 V
CC
V
R
= 15 V
≤ 0.1 Ω
CC
L
90
70
T
= 125°C
A
T
= –55°C
A
T
= 25°C
A
50
–55
0
20
40
60
80
100
120
–25
0
25
50
75
C)
100
125
I
, REFERENCE SOURCE CURRENT (mA)
T , AMBIENT TEMPERATURE (
°
ref
A
Figure 9. Reference Load Regulation
Figure 10. Reference Line Regulation
V
= 15 V
= 1.0 mA to 20 mA
= 25°C
CC
V
= 12 V to 25 V
CC
= 25°C
I
T
O
T
A
A
2.0 ms/DIV
2.0 ms/DIV
Figure 11. Output Saturation Voltage
versus Load Current
Figure 12. Output Waveform
0
–1.0
–2.0
Source Saturation
(Load to Ground)
V
= 15 V
CC
V
CC
80
µs Pulsed Load
120 Hz Rate
V
C
= 15 V
= 1.0 nF
= 25°C
CC
L
T
= 25°C
A
90%
T
A
T
= –55°C
A
3.0
2.0
1.0
0
T
= –55°C
A
T
= 25°C
A
10%
Sink Saturation
Gnd
600
(Load to V
)
CC
50 ns/DIV
0
200
400
800
I
, OUTPUT LOAD CURRENT (mA)
O
5
MOTOROLA ANALOG IC DEVICE DATA
MOTOROLA [ MOTOROLA ]
