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| 型号： | TL1451AMDREP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.021 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | GREEN, PLASTIC, MS-012AC, SOIC-16 |
| 文件页数： | 2/25页 |
| 文件大小： | 522K |
| 代理商： | TL1451AMDREP |
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1.5
1
0.5
0
5
10
15
20
25
2
2.5
3
30
35
40
TA = 25°C
VCC Supply Voltage V
V
ref
Reference
Output
V
oltage
V
V
O(ref)
0.8
0.7
0.6
25
0
25
50
Dropout
V
oltage
V
ariation
V
0.9
1
1.1
75
100
TA Free-Air Temperature °C
II(ref) = 1 mA
2
25
0
25
50
Undervoltage
Lockout
Threshold
V
oltage
V
2.5
3
3.5
75
100
Threshold Voltage VTH
(Left Scale)
Threshold Voltage VTL
(Left Scale)
Hysteresis Voltage
(Right Scale)
300
200
100
0
Undervoltage
Lockout
Hystersis
V
oltage
mV
TA Free-Air Temperature °C
3.25
2.75
2.25
50
150
250
3
2
1
0
1
2
3
VCE
Output
Collector
V
oltage
V
4
5
6
4
5
TA = 25°C
TA = 20°C
IO = 10 mA
7,10
8
RL
5 V
I = IO
VDE
TA = 85°C
VCC Supply Voltage V
V
CE
TL1451A-EP
DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS614 – DECEMBER 2005
TYPICAL CHARACTERISTICS (continued)
Figure 10. Reference Output Voltage
Figure 11. Dropout Voltage Variation
vs Supply Voltage
vs Free-air Temperature
Figure 12. Undervoltage Lockout Hysteresis
Figure 13. Undervoltage Lockout Characteristics
Characteristics
10
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