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UC2845 View Datasheet(PDF) - ON Semiconductor

Part Name
Description
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UC2845 Datasheet PDF : 16 Pages
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0
−4.0
−8.0
−12
−16
−20
−24
0
UC3844, UC3845, UC2844, UC2845
110
VCC = 15 V
90
VCC = 15 V
RL 0.1 W
TA = 125°C
TA = −55°C
TA = 25°C
20
40
60
80
100
120
Iref, REFERENCE SOURCE CURRENT (mA)
Figure 8. Reference Voltage Change
versus Source Current
70
50
−55 −25
0
25
50
75
100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 9. Reference Short Circuit Current
versus Temperature
VCC = 15 V
IO = 1.0 mA to 20 mA
TA = 25°C
VCC = 12 V to 25 V
TA = 25°C
2.0 ms/DIV
Figure 10. Reference Load Regulation
2.0 ms/DIV
Figure 11. Reference Line Regulation
0
VCC
Source Saturation
(Load to Ground)
VCC = 15 V
80 ms Pulsed Load
−1.0
TA = 25°C
120 Hz Rate
90%
−2.0
TA = −55°C
3.0
2.0
1.0
0
0
TA = −55°C
TA = 25°C
10%
Sink Saturation
(Load to VCC)
GN
D
200
400
600
800
IO, OUTPUT LOAD CURRENT (mA)
Figure 12. Output Saturation Voltage
versus Load Current
VCC = 15 V
CL = 1.0 nF
TA = 25°C
50 ns/DIV
Figure 13. Output Waveform
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