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LM431CIM3X/NOPB
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LM431CIM3X/NOPB 用户编程手册 - TI

更新时间: 2024-06-05 11:32:27 (UTC+8)

LM431CIM3X/NOPB 用户编程手册

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LM431SA / LM431SB / LM431SC — Programmable Shunt Regulator
© 2004 Fairchild Semiconductor Corporation www.fairchildsemi.com
LM431SA / LM431SB / LM431SC Rev. 6.11
June 2015
LM431SA / LM431SB / LM431SC
Programmable Shunt Regulator
Features
Programmable Output Voltage to 36 V
Low Dynamic Output Impedance: 0.2 Ω (Typical)
Sink Current Capability: 1.0 to 100 mA
Equivalent Full-Range Temperature Coefficient of
50 ppm/°C (Typical)
Temperature Compensated for Operation Over
Full Rated Operating Temperature Range
Low Output Noise Voltage
Fast Turn-on Response
Ordering Information
Note:
1. SOT-23 and SOT-23F have basically four-character marking except LM431SAIMFX.
(3 letters for device code + 1 letter for date code)
SOT-23F date code is composed of 1 digit numeric or alphabetic week code adding bar-type year code.
> Week code: Change in every two weeks > Year code (additional bar): Rotate in three year cycle
Product Number
Output Voltage
Tolerance
Operating
Temperature
Top Mark
(1)
Package Packing Method
LM431SACMFX
2%
-25 to +85°C
43A SOT-23F 3L
Tape and Reel
LM431SACM3X 43L
SOT-23 3L
LM431SACM32X 43G
SOT-23 3L
LM431SBCMLX
1%
43B SOT-89 3L
LM431SBCMFX 43B
SOT-23F 3L
LM431SBCM3X 43M
SOT-23 3L
LM431SBCM32X 43H
SOT-23 3L
LM431SCCMLX
0.5%
43C SOT-89 3L
LM431SCCMFX 43C
SOT-23F 3L
LM431SCCM3X 43N
SOT-23 3L
LM431SCCM32X 43J
SOT-23 3L
LM431SAIMFX 2% -40 to +85°C 43AI SOT-23F 3L
1. Ref 2. Anode 3. Cathode
1
SOT-89
SOT-23F
1
2
3
1. Cathode 2. Ref 3. Anode
SOT-23
1
2
3
M32 - 1. Ref 2. Cathode 3. Anode
M3 - 1. Cathode 2. Ref 3. Anode
Week
Code
Week
Code
01~02 03~04 05~06 07~08 09~10 11~12 13~14 15~16 17~18 19~20 21~22 23~24 25~26
123
45
6
7
89
ADEF
27~28 29~30 31~32 33~34 35~36 37~38 39~40 41~42 43~44 45~46 47~48 49~50 51~52
HJ KL N
O
PR
S
TUVX
Year
Code
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Description
The LM431SA / LM431SB / LM431SC are three-terminal
the output adjustable regulators with thermal stability over
operating temperature range. The output voltage can be
set any value between V
REF
(approximately 2.5 V) and
36 V with two external resistors. These devices have a
typical dynamic output impedance of 0.2 Ω. Active output
circuit provides a sharp turn-on characteristic, making
these devices excellent replacement for zener diodes in
many applications.
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