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AS431S Datasheet

  • AS431S

  • Analog IC

  • 116.43KB

  • 7頁(yè)

  • ETC

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AS431
Precision Adjustable Shunt Regulator
FEATURES
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Trimmed Bandgap to 0.5%
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Wide Operating Current..........................1mA to 150mA
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Extended Temperature Range....................0擄C to 105擄C
擄
擄
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Low Temperature Coefficient ............................30 ppm/擄C
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Offered in TO-92, SOIC, SOT-89, SOT-23-5
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Improved
Replacement in Performance for TL431
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Low Cost Solution
APPLICATIONS
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Battery Operating Equipments
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Adjustable Supplies
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Switching Power Supplies
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Error Amplifiers
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Single Supply Amplifier
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Monitors / VCR / TV
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Personal Computers
PRODUCT DESCRIPTION
The AS431 is a 3-terminal adjustable shunt voltage regulator providing a highly accurate 0.5% bandgap reference. AS431 acts as an
open-loop error amplifier with a 2.5V temperature compensation reference. The AS431 thermal stability, wide operating current
(150mA) and temperature range (0擄C to 105擄C) makes it suitable for all variety of application that are looking for a low cost solution
with high performance.
AS431 tolerance of 0.5% is proven to be sufficient to overcome all of the other errors in the system to
virtually eliminate the need for trimming in the power supply manufactures assembly line and contribute a significant Cost
Savings.
The output voltage may be adjusted to any value between V
REF
and 36 volts with two external resistors. The AS431 is operating an
extended temperature range of 0擄C to 105擄C. The AS431 is available in TO-92, SO-8, SOT-89, and SOT-23-5 packages.
PIN CONFIGURATIONS
8-Pin Surface Mount (S)
SOT-23-5 (M5)
REF
ANODE
4
SOT-89 (M1)
TO-92 (N)
1
2
3
CATHODE
ANODE
ANODE
N/C
1
2
3
4
8
7
REF
ANODE
ANODE
N/C
5
AS431
1
N/C
2
N/C
3
CATHODE
1
REF
AS431
2
3
CATHODE
REF
CATHODE
AS431
6
5
ANODE
ANODE
Top View
Top View
Top View
Bottom View
Rev. 10/5/00

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