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UC2842BN Datasheet(PDF) 5 Page - Motorola, Inc

Part # UC2842BN
Description  HIGH PERFORMANCE CURRENT MODE CONTROLLERS
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

UC2842BN Datasheet(HTML) 5 Page - Motorola, Inc

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UC3842B, 43B UC2842B, 43B
5
MOTOROLA ANALOG IC DEVICE DATA
Figure 5. Error Amp Small Signal
Transient Response
Figure 6. Error Amp Large Signal
Transient Response
Figure 7. Error Amp Open Loop Gain and
Phase versus Frequency
Figure 8. Current Sense Input Threshold
versus Error Amp Output Voltage
Figure 9. Reference Voltage Change
versus Source Current
Figure 10. Reference Short Circuit Current
versus Temperature
–20
10 M
10
f, FREQUENCY (Hz)
Gain
Phase
VCC = 15 V
VO = 2.0 V to 4.0 V
RL = 100 K
TA = 25°C
0
30
60
90
120
150
180
100
1.0 k
10 k
100 k
1.0 M
0
20
40
60
80
100
0
VO, ERROR AMP OUTPUT VOLTAGE (V)
0
0.2
0.4
0.6
0.8
1.0
1.2
2.0
4.0
6.0
8.0
VCC = 15 V
TA = 25°C
TA = –55°C
TA = 125°C
VCC = 15 V
TA = –55°C
TA = 25°C
–16
0
Iref, REFERENCE SOURCE CURRENT (mA)
20
40
60
80
100
120
–12
– 8.0
– 4.0
0
–20
–24
TA = 125°C
VCC = 15 V
RL ≤ 0.1 Ω
50
–55
TA, AMBIENT TEMPERATURE (°C)
– 25
0
25
50
75
100
125
70
90
110
1.0
µs/DIV
0.5
µs/DIV
2.55 V
2.50 V
2.45 V
3.0 V
2.5 V
2.0 V
VCC = 15 V
AV = –1.0
TA = 25°C
VCC = 15 V
AV = –1.0
TA = 25°C


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