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TL431 Datasheet(PDF) 11 Page - Microsemi Corporation

Part # TL431
Description  PRECISION PROGRAMMABLE REFERENCES
PDF  12 Pages
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

TL431 Datasheet(HTML) 11 Page - Microsemi Corporation

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P RECISION P ROGRAMMABLE R EFERENCES
TL431/TL431A/TL431B
PRODUCT DA T ABOOK 1996/1997
11
Copyright © 1999
Rev. 1.3
9/99
P RODUCTION D ATA S HEET
APPLICA TION INFORMA TION
Note: R should provide
≥ 1mA cathode current to
the TL431/A & TL1431 at minimum V
BATT.
I
K
R1 0.1%
R2 0.1%
V
REF
TL431/A
& TL431B
V
BATT
V
O
R (see Note)


R1
R2
V
O =
1 +
* VREF
R1
R2
V
BATT
V
O
TL431/A
& TL431B
R1
R2
V
BATT
V
O
C
(see Note)
TL431/A
& TL431B


R1
R2
V
O =
1 +
* VREF
FIGURE 18 — HIGH CURRENT SHUNT REGULATOR
FIGURE 19 — CROWBAR CIRCUIT
Note: Refer to the stability boundary conditions in
Figure 15 to determine allowable values for C.
FIGURE 16 — SHUNT REGULATOR
FIGURE 17 — SINGLE-SUPPLY COMPARATOR WITH
TEMPERATURE-COMPENSATED THRESHOLD
Input
V
ON »
2V
V
OFF »
V
BATT
GND
V
BATT
V
O
TL431/A
& TL431B



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