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參數(shù)資料
| 型號： | LM350 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | ADJUSTABLE VOLTAGE REGULATORS THREE-TERMINAL 3 A |
| 中文描述： | 電壓調(diào)節(jié)器可調(diào)三端3甲 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 172K |
| 代理商： | LM350 |
LM350
8
MOTOROLA ANALOG IC DEVICE DATA
Figure 19. “Laboratory” Power Supply with Adjustable Current Limit and Output Voltage
Figure 20. Adjustable Current Limiter
Figure 21. 5.0 V Electronic Shutdown Regulator
Figure 22. Slow Turn–On Regulator
Figure 23. Current Regulator
D6
1N4002
Vin
32V
Vin1
0.1
μ
F
LM350
(1)
Adjust 1
Vout1 RSC
Vin2
Vout 2
IO
VO
IN4001
1N4001
240
D5
1N4001
+
1.0
μ
F
Tantalum
1K
Current
Limit
Adjust
Q1
2N3822
5.0K
Adjust 2
Voltage
Adjust
+
10
μ
F
D3
D4
D1
1N4001
Q2
2N5640
–10V
Output Range:
0
≤
VO
≤
25 V
0
≤
IO
≤
1.5 A
Diodes D1 and D2 and transistor Q2 are added to allow adjustment
of output voltage to 0 V.
D6 protects both LM350’s during an input short circuit.
1N4001
D2
–10V
LM350
(2)
Vref
+25V
Vin
LM350
Vout
R1
Vout
620
Adjust
Iout
D2
1N4001
2N5640
R2
100
* To provide current limiting of IO
to the system ground, the source of
the FET must be tied to a negative
voltage below –1.25 V.
Vref
IDSS
R2
≤
R1 =
VSS*
D1
1N4001
VO < V(BR)DSS + 1.25 V + VSS
ILmin – IDSS < IO < 3.0 A
As shown O < IO < 1.0 A
Vin
D1
1N4002
Vout
120
Adjust
720
+
1.0
μ
F
MPS2222
1.0k
TTL
Control
LM350
Minimum Vout = 1.25 V
D1 protects the device during an input short circuit.
+
10
μ
F
Vin
Vout
240
1N4001
LM350
Adjust
MPS2907
R2
50k
LM350
Vin
Vout
R1
Adjust
IAdj
Iout
1.25 V
R1
10 mA
≤
Iout
≤
3.0 A
IOmax + IDSS
Iout
Vref
R1
IAdj
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