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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： | 9/25页 |
| 文件大小： | 522K |
| 代理商： | TL1451AMDREP |
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VO(ref) 0.01
VO(ref) 0.02
VO(ref) 0.03
VO(ref) 0.04
VO(ref) 0.05
VO(ref) 0.06
VO(ref) 0.07
1
0.9
0.8
0.7
0.6
0.5
25
0
25
50
75
100
TA Free-Air Temperature °C
Maximum Output Voltage
Swing (Right Scale)
Maximum Output
Voltage Swing (Right Scale)
+
RL
100 k
Vvom 1
33 k
33 k
VCC = 3.6 V
RL = 100 k
VOM+1 = 1.25 V
VOM 1 = 1.15 V (Right Scale)
VOM 1 = 1.35 V (Left Scale)
Vref
TEST CIRCUIT
Maximum
Output
V
oltage
Swing
V
OM
Maximum
Output
V
oltage
Swing
V
OM
1
0.5
0
10
20
ICC
(Standby)
Standby
Current
mA
2
30
40
1.5
CCI
VCC Supply Voltage V
TA = 25°C
1.75
1.25
0.75
0.25
50
60
90
100
0
0.5
1
1.5
2
2.5
3
Output
T
ransistor
On
Duty
Cycle
%
30
10
Dead-Time Input Voltage V
0
3.5
4
70
20
40
80
VCC = 3.6 V
RT = 10k
CT = 330 pF
TL1451A-EP
DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS614 – DECEMBER 2005
TYPICAL CHARACTERISTICS (continued)
Figure 24. Maximum Output Voltage Swing vs Free-Air Temperature
Figure 25. Output Transistor On Duty Cycle
Figure 26. Standby Current vs Supply Voltage
vs Dead-Time Input Voltage
17
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