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參數(shù)資料
| 型號： | LM4041 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Precision Micropower Shunt Voltage Reference(精密微功耗分流電壓基準) |
| 中文描述： | 改進的、精密微功耗并聯(lián)型電壓基準 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 106K |
| 代理商： | LM4041 |
January 2000
1
LM4040/4041
LM4040/4041
Micrel
LM4040/4041
Precision Micropower Shunt Voltage Reference
General Description
Ideal for space critical applications, the LM4040 and LM4041
precision voltage references are available in the subminia-
ture (3mm
×
1.3mm) SOT-23 surface-mount package.
The LM4040 is the available in fixed reverse breakdown
voltages of 2.500V, 4.096V and 5.000V. The LM4041 is
available with a fixed 1.225V or an adjustable reverse break-
down voltage.
The LM4040 and LM4041’s advanced design eliminates the
need for an external stabilizing capacitor while ensuring
stability with any capacitive load, making them easy to use.
The minimum operating current ranges from 60
μ
A for the
LM4041-1.2 to 74
μ
A for the LM4040-5.0. LM4040 versions
have a maximum operating current of 15mA. LM4041
versions have a maximum operating current of 12mA.
The LM4040 and LM4041 utilizes zener-zap reverse break-
down voltage trim during wafer sort to ensure that the prime
parts have an accuracy of better than
±
0.1% (A grade) at
25
°
C. Bandgap reference temperature drift curvature correc-
tion and low dynamic impedance ensure stable reverse
breakdown voltage accuracy over a wide range of operating
temperatures and currents.
Features
Small SOT-23 package
No output capacitor required
Tolerates capacitive loads
Fixed reverse breakdown voltages of 1.225, 2.500V,
4.096V and 5.000V
Adjustable reverse breakdown version
Contact Micrel for parts with extended temperature
range.
Key Specifications
Output voltage tolerance (A grade, 25
°
C) ..
±
0.1% (max)
Low output noise (10Hz to 100Hz)
LM4040 ................................................ 35
μ
V
RMS
(typ)
LM4041 ................................................ 20
μ
V
RMS
(typ)
Wide operating current range
LM4040 ................................................ 60
μ
A to 15mA
LM4041 ................................................ 60
μ
A to 12mA
Industrial temperature range ..................–40
°
C to +85
°
C
Low temperature coefficient ................100ppm/
°
C (max)
Applications
Battery-Powered Equipment
Data Acquisition Systems
Instrumentation
Process Control
Energy Management
Product Testing
Automotive Electronics
Precision Audio Components
Typical Applications
V
S
R
S
V
R
LM4041
Adjustable
R
1
R
2
V
O
V
S
R
S
V
R
I
Q
+ I
L
I
Q
I
L
LM4040
LM4041
V
O
Figure 2. LM4041 Adjustable
Shunt Regulator Application
Figure 1. LM4040, LM4041 Fixed
Shunt Regulator Application
V
O
= 1.233 (R
2
/R
1
+ 1)
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4041A12IDBZR | 功能描述:基準電壓& 基準電流 1.2V Precision Mcrpwr Shunt .1% acc RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM4041A12IDBZR | 制造商:Texas Instruments 功能描述:MICROPOWER SHUNT VOLTAGE REFERENCE 制造商:Texas Instruments 功能描述:IC, SHUNT V-REF, 1.225V, 1.2mV, 3-SOT-23 |
| LM4041A12IDBZRG4 | 功能描述:基準電壓& 基準電流 1.2V Precision Mcrpwr Shunt .1% acc RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM4041A12IDBZT | 功能描述:基準電壓& 基準電流 1.2V Precision Mcrpwr Shunt .1% acc RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM4041A12IDBZTG4 | 功能描述:基準電壓& 基準電流 1.2V Precision Mcrpwr Shunt .1% acc RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
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