參數資料
型號: TL1431QPW
廠商: Texas Instruments, Inc.
英文描述: PRECISION PROGRAMMABLE REFERENCE
中文描述: 精密可編程的參考
文件頁數: 13/24頁
文件大小: 345K
代理商: TL1431QPW
www.ti.com
V
(BATT)
R
30
TL1431
2N2222
2N2222
0.01
μ
F
4.7 k
R1
0.1%
R2
0.1%
V
O
VO
1
R1
V
(BATT)
In
Out
V
O
TL1431
Common
μ
A7805
R1
R2
V
1
R1
Min V = V
I(ref)
+ 5 V
V
(BATT)
V
O
TL1431
R1
R2
C
Vtrip
1
R1
V
(BATT)
TL1431
VO
1
R1
R1
R2
R
V
O
LM317
In
Out
V
(BATT)
8.2 k
TL1431
Adjust
243
0.1%
243
0.1%
V
O
= 5 V, 1.5 A, 0.5%
V
(BATT)
V
O
= 5 V
R
b
TL1431
27.4 k
0.1%
27.4 k
0.1%
TL1431
PRECISION PROGRAMMABLE REFERENCE
SLVS062K–DECEMBER 1991–REVISED OCTOBER 2006
Figure 19. Output Control of a Three-Terminal Fixed
Regulator
A.
R should provide cathode current
1 mA to
the TL1431 at minimum V
.
Figure 18. Precision High-Current Series Regulator
Figure 20. Higher-Current Shunt Regulator
A.
Refer to the stability boundary conditions in
Figure 15
to determine allowable values for
C.
Figure 21. Crowbar
Figure 22. Precision 5-V, 1.5-A, 0.5% Regulator
A.
R
b
should provide cathode current
1 mA to
the TL1431.
Figure 23. 5-V Precision Regulator
13
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