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UC2843BDR2 View Datasheet(PDF) - ON Semiconductor

Part Name
Description
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UC2843BDR2
ON-Semiconductor
ON Semiconductor ON-Semiconductor
UC2843BDR2 Datasheet PDF : 21 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
UC3842B, UC3843B, UC2842B, UC2843B, NCV3843BV
100
0
VCC = 15 V
80
Gain
VO = 2.0 V to 4.0 V
RL = 100 K
30
TA = 25°C
60
60
40
90
Phase
20
120
0
150
− 20
10
180
100
1.0 k
10 k
100 k 1.0 M 10 M
f, FREQUENCY (Hz)
Figure 8. Error Amp Open Loop Gain and
Phase versus Frequency
1.2
VCC = 15 V
1.0
0.8
TA = 25°C
0.6
TA = 125°C
0.4
TA = −55°C
0.2
0
0
2.0
4.0
6.0
8.0
VO, ERROR AMP OUTPUT VOLTAGE (V)
Figure 9. Current Sense Input Threshold
versus Error Amp Output Voltage
0
ÄÄÄÄ VCC = 15 V
− 4.0
− 8.0
−12
ÄÄÄÄ TA = 125°C
ÄÄÄÄÄÄ TA = −55°C
−16
− 20
ÄÄÄÄÄÄÄÄ TA = 25°C
− 24
0
20
40
60
80
100
120
Iref, REFERENCE SOURCE CURRENT (mA)
Figure 10. Reference Voltage Change
versus Source Current
110
ÄÄÄÄ VCC = 15 V
ÄÄÄÄ RL 0.1 W
90
70
50
− 55 − 25
0
25
50
75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 11. Reference Short Circuit Current
versus Temperature
VCC = 15 V
IO = 1.0 mA to 20 mA
TA = 25°C
VCC = 12 V to 25
TA = 25°C
2.0 ms/DIV
Figure 12. Reference Load Regulation
2.0 ms/DIV
Figure 13. Reference Line Regulation
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