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參數(shù)資料
| 型號(hào)： | TSP2102DBV |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封裝： | PLASTIC, SOT-23, 5 PIN |
| 文件頁(yè)數(shù)： | 3/20頁(yè) |
| 文件大?。?/td> | 456K |
| 代理商： | TSP2102DBV |
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TPS2102, TPS2103
VAUX POWER-DISTRIBUTION SWITCHES
SLVS234A – SEPTEMBER 1999 – REVISED APRIL 2000
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 14
100
10
0.1
0.01
0.1
1
10
1000
IN1 SWITCH FALL TIME
vs
OUTPUT CURRENT
10000
100
1000
–
Fall
T
ime
–
CL = 100 F
CL = 47 F
CL = 10 F
CL = 1 F
CL = 0.1 F
IO – Output Current – mA
t
f
s
VI(IN1) = 3.3 V
VI(IN2) = 0 V
TJ = 25°C
1
Figure 15
10
1
0.001
0.01
0.1
100
IN2 SWITCH FALL TIME
vs
OUTPUT CURRENT
1000
1
100
–
Output
Fall
T
ime
–
ms
CL = 100 F
CL = 10 F
CL = 1 F
CL = 0.1 F
IO – Output Current – mA
t
f
VI(IN1) = 0 V
VI(IN2) = 3.3 V
TJ = 25°C
CL = 47 F
10
0.1
0.01
Figure 16
0.4
0.2
0
0.01
0.1
0.6
0.8
1
100
–
Output
V
oltage
Droop
–
V
OUTPUT VOLTAGE DROOP
vs
OUTPUT CURRENT WHEN OUTPUT
IS SWITCHED FROM IN2 TO IN1
V
O
CL = 100 F
CL = 10 F
CL = 1 F
CL = 0.1 F
IO – Output Current – mA
VI(IN1) = 3.3 V
VI(IN2) = 3.3 V
TJ = 25°C
CL = 47 F
10
CL = 220 F
Figure 17
1
0
100
200
300
Inrush
Current
–
A
1.5
2
INRUSH CURRENT
vs
OUTPUT CAPACITANCE
2.5
400
500
0.5
Co – Output Capacitance – F
VI(IN1) = 3.3 V
VI(IN2) = 0 V
RL = 6.6
TJ = 25°C
If switching from IN1 to IN2, the voltage droop is much smaller. Therefore, the load capacitance should be chosen according to the curves in
Figure 16.
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