UC3842B(2013) Просмотр технического описания (PDF) - ON Semiconductor
Номер в каталоге
Компоненты Описание
производитель
UC3842B Datasheet PDF : 22 Pages
| |||
UC3842B, UC3843B, UC2842B, UC2843B
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
ÄÄÄ VCC = 15 V
ÄÄÄ 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
http://onsemi.com
6
Share Link: 