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LM431SBCMFX

Voltage References Shunt Regulator 2.5V Programmable

器件类别：电源/电源管理    电源电路   

厂商名称：Fairchild

厂商官网：http://www.fairchildsemi.com/

器件标准：

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器件参数
参数名称
属性值
Brand Name
Fairchild Semiconductor
是否无铅
不含铅
是否Rohs认证
符合
厂商名称
Fairchild
零件包装代码
SOT-23F
包装说明
VSSOP, TO-236
针数
3
制造商包装代码
3LD, SOT23, FLAT LEAD, LOW PROFILE
Reach Compliance Code
compliant
ECCN代码
EAR99
Samacsys Description
IC, Fairchild, LM431SBCMFX
其他特性
THE OUTPUT VOLTAGE CAN BE SET TO ANY VALUE BETWEEN 2.495V AND 36V WITH TWO EXTERNAL RESISTORS
模拟集成电路 - 其他类型
TWO TERMINAL VOLTAGE REFERENCE
JESD-30 代码
R-PDSO-G3
JESD-609代码
e3
长度
2.9 mm
湿度敏感等级
1
功能数量
1
输出次数
1
端子数量
3
最高工作温度
85 °C
最低工作温度
-25 °C
最大输出电流
0.1 A
最大输出电压
2.52 V
最小输出电压
2.47 V
标称输出电压
2.495 V
封装主体材料
PLASTIC/EPOXY
封装代码
VSSOP
封装等效代码
TO-236
封装形状
RECTANGULAR
封装形式
SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）
NOT SPECIFIED
认证状态
Not Qualified
座面最大高度
1 mm
表面贴装
YES
技术
BIPOLAR
最大电压温度系数
61.942 ppm/°C
温度等级
OTHER
端子面层
Matte Tin (Sn)
端子形式
GULL WING
端子节距
0.95 mm
端子位置
DUAL
处于峰值回流温度下的最长时间
NOT SPECIFIED
微调/可调输出
YES
宽度
1.6 mm
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LM431SA / LM431SB / LM431SC — Programmable Shunt Regulator
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
SOT-89
SOT-23F
3
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.
SOT-23
3
•
•
•
•
1
1
2
1
2
1. Ref 2. Anode 3. Cathode
1. Cathode 2. Ref 3. Anode
M32 - 1. Ref 2. Cathode 3. Anode
M3 - 1. Cathode 2. Ref 3. Anode
Ordering Information
Product Number
LM431SACMFX
LM431SACM3X
LM431SACM32X
LM431SBCMLX
LM431SBCMFX
LM431SBCM3X
LM431SBCM32X
LM431SCCMLX
LM431SCCMFX
LM431SCCM3X
LM431SCCM32X
LM431SAIMFX
2%
-40 to +85°C
0.5%
1%
-25 to +85°C
2%
Output Voltage Operating
Tolerance
Temperature
Top Mark
(1)
43A
□
43L
◎
43G
◎
43B
43B
□
43M
◎
43H
◎
43C
43C
□
43N
◎
43J
◎
43AI
Package
SOT-23F 3L
SOT-23 3L
SOT-23 3L
SOT-89 3L
SOT-23F 3L
SOT-23 3L
SOT-23 3L
SOT-89 3L
SOT-23F 3L
SOT-23 3L
SOT-23 3L
SOT-23F 3L
Packing Method
Tape and Reel
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
Week
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
Code
1
2
3
4
5
6
7
8
9
A
D
E
F
Year
Code
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Week
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
Code
H
J
K
L
N
O
P
R
S
T
U
V
X
© 2004 Fairchild Semiconductor Corporation
LM431SA / LM431SB / LM431SC Rev. 6.11
www.fairchildsemi.com
LM431SA / LM431SB / LM431SC — Programmable Shunt Regulator
Block Diagram
+
-
Figure 1. Block Diagram
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-
ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-
tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The
absolute maximum ratings are stress ratings only. Values are at T
A
= 25°C unless otherwise noted.
Symbol
V
KA
I
KA
I
REF
R
θ
JA
Cathode Voltage
Parameter
Cathode current Range (Continuous)
Reference Input Current Range
ML Suffix Package (SOT-89)
Thermal Resistance
Junction-Air
(2,3)
MF Suffix Package (SOT-23F)
M32, M3 Suffix Package (SOT-23)
ML Suffix Package (SOT-89)
Value
37
-100 to +150
-0.05 to +10.00
220
350
400
560
350
310
150
Unit
V
mA
mA
°
C/W
P
D
T
J
T
OPR
T
STG
Power Dissipation
(4,5)
MF Suffix Package (SOT-23F)
M32, M3 Suffix Package (SOT-23)
mW
°
°
°
Junction Temperature
Operating Temperature
Range
Storage Temperature Range
All products except LM431SAIMFX
LM431SAIMFX
C
C
C
-25 to +85
-40 to +85
-65 to +150
Notes:
2. Thermal resistance test board
Size: 1.6 mm x 76.2 mm x 114.3 mm (1S0P)
JEDEC Standard: JESD51-3, JESD51-7.
3. Assume no ambient airflow.
4. T
JMAX
= 150
°
C; ratings apply to ambient temperature at 25
°
C.
5. Power dissipation calculation: P
D
= (T
J
- T
A
) / R
θJA.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol
V
KA
I
KA
Cathode Voltage
Cathode Current
Parameter
Min.
V
REF
1
Max.
36
100
Unit
V
mA
© 2004 Fairchild Semiconductor Corporation
LM431SA / LM431SB / LM431SC Rev. 6.11
www.fairchildsemi.com
2
LM431SA / LM431SB / LM431SC — Programmable Shunt Regulator
Electrical Characteristics
(6)
Values are at T
A
= 25°C unless otherwise noted.
Symbol
V
REF
Parameter
Reference Input
Voltage
Deviation of
Reference
Input Voltage
Over-
Temperature
Ratio of Change
in Reference
Input Voltage
to the Change in
Cathode Voltage
Reference Input
Current
Deviation of
Reference
Input Current
Over Full
Temperature
Range
Minimum
Cathode Current
for Regulation
Off -Stage
Cathode Current
Dynamic
Impedance
Conditions
V
KA
= V
REF
, I
KA
= 10 mA
SOT-89
SOT-23F
SOT-23
LM431SA
LM431SB
LM431SC
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
2.450 2.500 2.550 2.470 2.495 2.520 2.482 2.495 2.508
Unit
V
Δ
V
REF
/
Δ
T
V
KA
= V
REF
,
I
KA
= 10 mA
T
MIN
≤
T
A
≤
T
MAX
4.5
6.6
-1.0
-0.5
1.5
0.4
17.0
24
-2.7
-2.0
4.0
1.2
4.5
6.6
-1.0
-0.5
1.5
0.4
17.0
24
-2.7
-2.0
4.0
1.2
4.5
6.6
-1.0
-0.5
1.5
0.4
17.0
24
-2.7
mV
mV
Δ
V
KA
=
10 V-V
REF
I
KA
=10 mA
Δ
V
REF
/
Δ
V
KA
Δ
V
KA
=
36 V-10 V
mV/V
-2.0
4.0
1.2
μA
μA
I
REF
I
KA
= 10 mA,
R
1
= 10 KΩ, R
2
=
∞
I
KA
= 10 mA,
R
1
= 10 KΩ,
R
2
=
∞,
T
A
= Full
Range
SOT-89
SOT-23F
Δ
I
REF
/
Δ
T
SOT-23
0.8
2.0
0.8
2.0
0.8
2.0
μA
I
KA(MIN)
V
KA
= V
REF
0.45
1.00
0.45
1.00
0.45
1.00
mA
μA
Ω
I
KA(OFF)
V
KA
= 36 V, V
REF
= 0
V
KA
= V
REF
,
I
KA
= 1 to 100 mA,
f
≥
1.0 kHz
0.05
1.00
0.05
1.00
0.05
1.00
Z
KA
0.15
0.50
0.15
0.50
0.15
0.50
Note:
6. T
MIN
= -25°C, T
MAX
= +85°C.
© 2004 Fairchild Semiconductor Corporation
LM431SA / LM431SB / LM431SC Rev. 6.11
www.fairchildsemi.com
3
LM431SA / LM431SB / LM431SC — Programmable Shunt Regulator
Electrical Characteristics
(7, 8)
(Continued)
Values are at T
A
= 25°C unless otherwise noted.
Symbol
V
REF
V
REF(dev)
Parameter
Reference Input Voltage
Deviation of Reference
Input Voltage Over-
Temperature
Ratio of Change in
Reference Input Voltage
to Change in Cathode
Voltage
Reference Input Current
Deviation of Reference
Input Current Over Full
Temperature Range
Minimum Cathode
Current for Regulation
Off -Stage Cathode
Current
Dynamic Impedance
Conditions
V
KA
= V
REF
, I
KA
= 10 mA
V
KA
= V
REF
, I
KA
= 10 mA,
T
MIN
≤
T
A
≤
T
MAX
LM431SAI
Min. Typ. Max.
2.450 2.500 2.550
5
-1.0
-0.5
1.5
0.8
20
-2.7
-2.0
4.0
2.0
Unit
V
mV
Δ
V
KA
= 10 V - V
REF
I
KA
= 10 mA
Δ
V
REF
/
Δ
V
KA
I
REF
I
REF(dev)
I
KA(MIN)
I
KA(OFF)
Z
KA
Notes:
Δ
V
KA
= 36 V - 10 V
mV/V
μA
μA
mA
μA
Ω
I
KA
= 10 mA, R
1
=10 KΩ, R
2
=
∞
I
KA
= 10 mA, R
1
= 10 KΩ, R
2
=
∞,
T
MIN
≤
T
A
≤
T
MAX
V
KA
= V
REF
V
KA
= 36 V, V
REF
= 0
V
KA
= V
REF
, I
KA
= 1 to 100 mA,
f
≥
1.0 kHz
0.45
0.05
0.15
1.00
1.00
0.50
7. T
MIN
= -40°C, T
MAX
= +85°C.
8. The deviation parameters V
REF(dev)
and I
REF(dev)
are defined as the differences between the maximum and minimum
values obtained over the rated temperature range. The average full-range temperature coefficient of the reference
input voltage,
αV
REF
, is defined as:
V
REF
(
dev
)
---------------------------------------
⋅
10
6
-
V
(
at25°C
)
REF
-
αV
REF
ppm
= -----------------------------------------------------------
-----------
-
°C
T
MAX
–
T
MIN
V
REF(min)
V
REF(dev)
V
REF(max)
T
MAX
-T
MIN
where T
MAX
-T
MIN
is the rated operating free-air temperature range of the device.
αV
REF
can be positive or negative, depending on whether minimum V
REF
or maximum V
REF
, respectively, occurs at
the lower temperature.
Example: V
REF(dev)
= 4.5 mV, V
REF
= 2500 mV at 25
°C,
T
MAX
-T
MIN
= 125
°C
for LM431SAI.
4.5mV
-
-----------------------
⋅
10
6
2500mV
= -------------------------------------------- =
14.4ppm
⁄ °C
125°C
αV
REF
Because minimum V
REF
occurs at the lower temperature, the coefficient is positive.
© 2004 Fairchild Semiconductor Corporation
LM431SA / LM431SB / LM431SC Rev. 6.11
www.fairchildsemi.com
4
查看更多>
参数对比
与LM431SBCMFX相近的元器件有：LM431SBCMLX。描述及对比如下：
型号 LM431SBCMFX LM431SBCMLX
描述 Voltage References Shunt Regulator 2.5V Programmable Latches 3-STATE Oct D Latch
Brand Name Fairchild Semiconductor Fairchild Semiconductor
是否无铅 不含铅 不含铅
是否Rohs认证 符合 符合
厂商名称 Fairchild Fairchild
零件包装代码 SOT-23F SOT-89
包装说明 VSSOP, TO-236 , TO-243
针数 3 3
制造商包装代码 3LD, SOT23, FLAT LEAD, LOW PROFILE 3LD,SOT89,JEDEC TO-243,OPTION AA
Reach Compliance Code compliant compliant
ECCN代码 EAR99 EAR99
其他特性 THE OUTPUT VOLTAGE CAN BE SET TO ANY VALUE BETWEEN 2.495V AND 36V WITH TWO EXTERNAL RESISTORS THE OUTPUT VOLTAGE CAN BE SET TO ANY VALUE BETWEEN 2.495V AND 36V WITH TWO EXTERNAL RESISTORS
模拟集成电路 - 其他类型 TWO TERMINAL VOLTAGE REFERENCE TWO TERMINAL VOLTAGE REFERENCE
JESD-30 代码 R-PDSO-G3 R-PSSO-F3
JESD-609代码 e3 e3
长度 2.9 mm 4.5 mm
湿度敏感等级 1 1
功能数量 1 1
输出次数 1 1
端子数量 3 3
最高工作温度 85 °C 85 °C
最低工作温度 -25 °C -25 °C
最大输出电流 0.1 A 0.1 A
最大输出电压 2.52 V 2.52 V
最小输出电压 2.47 V 2.47 V
标称输出电压 2.495 V 2.495 V
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY
封装等效代码 TO-236 TO-243
封装形状 RECTANGULAR RECTANGULAR
封装形式 SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH SMALL OUTLINE
峰值回流温度（摄氏度） NOT SPECIFIED 260
认证状态 Not Qualified Not Qualified
座面最大高度 1 mm 1.7 mm
表面贴装 YES YES
技术 BIPOLAR BIPOLAR
最大电压温度系数 61.942 ppm/°C 61.942 ppm/°C
温度等级 OTHER OTHER
端子面层 Matte Tin (Sn) Matte Tin (Sn)
端子形式 GULL WING FLAT
端子节距 0.95 mm 1.5 mm
端子位置 DUAL SINGLE
处于峰值回流温度下的最长时间 NOT SPECIFIED NOT SPECIFIED
微调/可调输出 YES YES
宽度 1.6 mm 2.5 mm
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