參數(shù)資料
型號: LM4041DIM3-ADJT&R
廠商: MICREL INC
元件分類: 基準電壓源/電流源
英文描述: 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.233 V, PDSO3
封裝: SOT-23, 3 PIN
文件頁數(shù): 1/16頁
文件大?。?/td> 812K
代理商: LM4041DIM3-ADJT&R
March 2005
1
M9999-031805
LM4040/4041
Micrel, Inc.
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 subminiature
(3mm × 1.3mm) SOT-23 surface-mount package.
The LM4040 is the available in xed reverse breakdown
voltages of 2.500V, 4.096V and 5.000V. The LM4041 is avail-
able with a xed 1.225V or an adjustable reverse breakdown
voltage.
The minimum operating current ranges from 60A for the
LM4041-1.2 to 74A for the LM4040-5.0. LM4040 versions
have a maximum operating current of 15mA. LM4041 ver-
sions have a maximum operating current of 12mA.
The LM4040 and LM4041 have bandgap reference tempera-
ture drift curvature correction and low dynamic impedance,
ensuring stable reverse breakdown voltage accuracy over a
wide range of operating temperatures and currents.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
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 Specications
Output voltage tolerance .............................±0.1% (max)
Low output noise (10Hz to 100Hz)
LM4040................................................. 35VRMS (typ)
LM4041................................................. 20VRMS (typ)
Wide operating current range
LM4040..................................................60A to 15mA
LM4041..................................................60A to 12mA
Industrial temperature range .................. –40°C to +85°C
Low temperature coefcient ................ 100ppm/°C (max)
Applications
Battery-powered equipment
Data acquisition systems
Instrumentation
Process control
Energy management
Product testing
Automotive electronics
Precision audio components
Typical Applications
Figure 2. LM4041 Adjustable
Shunt Regulator Application
Figure 1. LM4040, LM4041 Fixed
Shunt Regulator Application
VO = 1.233 (R2/R1 + 1)
Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
VS
RS
VR
IQ + IL
IQ
IL
LM4040
LM4041
VO
VS
LM4041
Adjustable
R1
R2
RS
VO
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