APL431LAAC-TB Anpec Electronics Corporation, APL431LAAC-TB Datasheet - Page 5

• Manufacturer Part Number: APL431LAAC-TB
• Description: 0.5% reference voltage tolerance, low voltage adjustable precision shunt regulator
• Manufacturer: Anpec Electronics Corporation

APL431L
Application Schematic
1)To improve the stability of output voltage, a 0.1 F capacitor between cathode and anode of APL431L is
2)Set V
3)Choose the value for R
Copyright
Rev. B.7 - May., 2003
Precision Voltage Reference
Precision High-Current Series Regulator
Notes for Application Circuits:
strongly recommended.
V
A)The maximum limit for R
B)The minimum limit for RB should be such that the cathode current (l
OUT
erating current (80 A) at V
all load conditions, and the instantaneous turn-on value for lk does not exceed 150mA. Both of the fo-
llowing conditions must. be met:
R
R
B,Min
B,Min
= V
OUT
l
150mA
OUT(MIN)
REF
according to the following equation:
V
V
ANPEC Electronics Corp.
IN(MAX)
IN(MAX)
(1+R1/R2)+l
+100mA
-V
(to limit instantaneous turn-on l
OUT
(to limit l
REF
B
as follows:
R1
B
should be such that the cathode current(l
IN(MIN)
K
under normal operating conditions)
.
V
V
IN
IN
0.1 F
R
R
V
B
B
R
R
R E F
1
2
K
)
5
V
R
R
R EF
0.1 F
1
2
V
V
K
o
) is greater than the minimum op-
K
o
) does not exceed 100mA under
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