參數(shù)資料
型號: TL1431CDG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5 V, PDSO8
封裝: GREEN, PLASTIC, MS-012AA, SOIC-8
文件頁數(shù): 5/29頁
文件大小: 704K
代理商: TL1431CDG4
www.ti.com
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)
In
Out
VO
TL1431
Common
A7805
R1
R2
V + 1 )
R1
R2
V
I(ref)
Min V = VI(ref) + 5 V
V(BATT)
VO
TL1431
R1
R2
C
V
trip +
1 )
R1
R2
V
I(ref)
V(BATT)
TL1431
V
O +
1 )
R1
R2
V
I(ref)
R1
R2
R
VO
LM317
In
Out
V(BATT)
8.2 k
TL1431
Adjust
243
0.1%
243
0.1%
VO = 5 V, 1.5 A, 0.5%
V(BATT)
VO = 5 V
Rb
TL1431
27.4 k
0.1%
27.4 k
0.1%
PRECISION PROGRAMMABLE REFERENCE
SLVS062L – DECEMBER 1991 – REVISED OCTOBER 2007
Figure 19. Output Control of a Three-Terminal Fixed
A.
R should provide cathode current
≥1 mA to
Regulator
the TL1431 at minimum V(BATT).
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.
Rb should provide cathode current ≥1 mA to
the TL1431.
Figure 23. 5-V Precision Regulator
Copyright 1991–2007, Texas Instruments Incorporated
13
Product Folder Link(s): TL1431
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