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参数资料
| 型号： | TL1431MDREP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5 V, PDSO8 |
| 封装： | GREEN, PLASTIC, SOIC-8 |
| 文件页数： | 5/20页 |
| 文件大小： | 444K |
| 代理商： | TL1431MDREP |
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V(BATT)
In
Out
VO
TL1431
Common
A7805
R1
R2
V + 1 )
R1
R2
V
I(ref)
Min V = VI(ref) + 5 V
NOTE A: R should provide cathode current
≥1 mA to the TL1431 at
minimum V(BATT).
V(BATT)
R
30
TL1431
2N2222
0.01
F
4.7 k
R1
0.1%
R2
0.1%
VO
V
O +
1 )
R1
R2
V
I(ref)
V(BATT)
TL1431
V
O +
1 )
R1
R2
V
I(ref)
R1
R2
R
VO
NOTE A: Refer to the stability boundary conditions in Figure 15 to
determine allowable values for C.
V(BATT)
VO
TL1431
R1
R2
C
V
trip +
1 )
R1
R2
V
I(ref)
LM317
In
Out
V(BATT)
8.2 k
TL1431
Adjust
243
0.1%
243
0.1%
VO = 5 V, 1.5 A, 0.5%
NOTE A: Rb should provide cathode current ≥1 mA to the TL1431.
V(BATT)
VO = 5 V
Rb
TL1431
27.4 k
0.1%
27.4 k
0.1%
PRECISION PROGRAMMABLE REFERENCE
SLVS529C – APRIL 2004 – REVISED DECEMBER 2006
Figure 18. Precision High-Current Series Regulator
Figure 19. Output Control of a
Three-Terminal Fixed Regulator
Figure 20. Higher-Current Shunt Regulator
Figure 21. Crowbar
Figure 22. Precision 5-V, 1.5-A, 0.5% Regulator
Figure 23. Precision Regulator
13
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