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LM4040BIM3-5.0 Datasheet

  • LM4040BIM3-5.0

  • Precision Micropower Shunt Voltage Reference

  • 16頁

  • MICREL   MICREL

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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
脳
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鈥檚 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碌A for the
LM4041-1.2 to 74碌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
鹵0.1%
(A grade) at
25擄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
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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
鈥?Adjustable reverse breakdown version
鈥?Contact Micrel for parts with extended temperature
range.
Key Specifications
鈥?Output voltage tolerance (A grade, 25擄C) ..
鹵0.1%
(max)
鈥?Low output noise (10Hz to 100Hz)
LM4040 ................................................ 35碌V
RMS
(typ)
LM4041 ................................................ 20碌V
RMS
(typ)
鈥?Wide operating current range
LM4040 ................................................ 60碌A to 15mA
LM4041 ................................................ 60碌A to 12mA
鈥?Industrial temperature range .................. 鈥?0擄C to +85擄C
鈥?Low temperature coefficient ................ 100ppm/擄C (max)
Applications
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Battery-Powered Equipment
Data Acquisition Systems
Instrumentation
Process Control
Energy Management
Product Testing
Automotive Electronics
Precision Audio Components
Typical Applications
V
S
V
S
R
S
V
R
LM4040
LM4041
I
Q
+ I
L
I
L
I
Q
R
S
V
R
V
O
V
O
R
1
V
O
= 1.233 (R
2
/R
1
+ 1)
LM4041
Adjustable
R
2
Figure 1. LM4040, LM4041 Fixed
Shunt Regulator Application
Figure 2. LM4041 Adjustable
Shunt Regulator Application
Micrel, Inc. 鈥?1849 Fortune Drive 鈥?San Jose, CA 95131 鈥?USA 鈥?tel + 1 (408) 944-0800 鈥?fax + 1 (408) 944-0970 鈥?http://www.micrel.com
January 2000
1
LM4040/4041

LM4040BIM3-5.0 產(chǎn)品屬性

  • National Semiconductor (TI)

  • Voltage References

  • Shunt References

  • Precision

  • 5 V

  • 0.2 %

  • 30 PPM/C (Typ)

  • 15 mA

  • + 85 C

  • SOT-23

  • Reel

  • - 40 C

  • SMD/SMT

  • 1000

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