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UC2842A Datasheet(PDF) 6 Page - STMicroelectronics

Part No. UC2842A
Description  HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UC2842A Datasheet(HTML) 6 Page - STMicroelectronics

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Figure 9. Current Sense Input Threshold vs.
Error Amp Output Voltage.
Figure 10. Reference Voltage Change vs.
Source Current..
Figure 11. Reference Short Circuit Current vs.
Temperature..
Figure 12. Output Saturation Voltage vs. Load
Current.
Figure 13. Supply Current vs. Supply Voltage.
0246
VO(V)
0.0
0.2
0.4
0.6
0.8
1.0
Vth
(V)
D95IN338
Vi=15V
TA=-40˚C
TA=125˚C
TA=25˚C
0
20406080
100 Iref(mA)
D95IN339
0
10
20
30
40
50
60
Vi=15V
TA=-40˚C
TA=125˚C
-55
-25
0
25
50
75
100 TA(˚C)
D95IN340
50
60
70
80
90
100
ISC
(mA)
Vi=15V
RL≤0.1Ω
0
200
400
600
IO(mA)
0
1
2
3
-2
-1
Vsat
(V)
D95IN341
Vi=15V
80
µs Pulsed Load 120Hz Rate
TA=-40˚C
TA=25˚C
Vi
TA=-40˚C
TA=25˚C
GND
Sink Saturation
(Load to Vi)
Source Saturation
(Load to Ground)
0
102030
Vi(V)
0
5
10
15
20
Ii
(mA)
RT=10K
CT=3.3nF
VFB=0V
ISense=0V
TA=25˚C
D95IN342


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