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Details, datasheet, quote on part number:LM4041
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| Part: | LM4041 |
| Category: | Power Management => Voltage References |
| Description: | LM4040/4041 Precision Micropower Shunt Voltage Reference |
| Company: | Micrel Semiconductor |
| Datasheet: | Download LM4041 datasheet File size : 113 kB |
| Request For quote: | Find where to buy LM4041
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Datasheet text preview:
LM4040/4041
Micrel
LM4040/4041
Precision Micropower Shunt Voltage Reference Final Information
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 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 breakdown 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 60µA for the LM4041-1.2 to 74µA 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 breakdown 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 correction 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 ...... 35µVRMS (typ) LM4041 ...... 20µVRMS (typ) · Wide operating current range LM4040 ...... 60µA to 15mA LM4041 ...... 60µA 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
VS
VS RS VR LM4040 LM4041 I Q + IL IL IQ
RS VR
VO
VO R1
VO = 1.233 (R2/R1 + 1)
LM4041 Adjustable
R2
Figure 1. LM4040, LM4041 Fixed Shunt Regulator Application
Figure 2. LM4041 Adjustable Shunt Regulator Application
Micrel, Inc. · 1849 Fortune Drive · San Jose, CA 95131 · USA · tel + 1 (408) 944-0800 · fax + 1 (408) 944-0970 · http://www.micrel.com
January 2000
1
LM4040/4041
LM4040/4041
Micrel
Pin Configuration
+
1 3
FB +
1 3 2
2
Pin 3 must float or be connected to pin 2.
Fixed Version SOT-23 (M3) Package Top View
Adjustable Version SOT-23 (M3) Package Top View
Ordering Information
Part Number * LM4040AIM3-2.5 LM4040BIM3-2.5 LM4040CIM3-2.5 LM4040DIM3-2.5 LM4040AIM3-4.1 LM4040BIM3-4.1 LM4040CIM3-4.1 LM4040DIM3-4.1 LM4040AIM3-5.0 LM4040BIM3-5.0 LM4040CIM3-5.0 LM4040DIM3-5.0 Voltage 2.500V 2.500V 2.500V 2.500V 4.096V 4.096V 4.096V 4.096V 5.000V 5.000V 5.000V 5.000V Accuracy, Temp. Coefficient ±0.1%, 100ppm/°C ±0.2%, 100ppm/°C ±0.5%, 100ppm/°C ±1.0%, 150ppm/°C ±0.1%, 100ppm/°C ±0.2%, 100ppm/°C ±0.5%, 100ppm/°C ±1.0%, 150ppm/°C ±0.1%, 100ppm/°C ±0.2%, 100ppm/°C ±0.5%, 100ppm/°C ±1.0%, 150ppm/°C Part Number * LM4041AIM3-1.2 LM4041BIM3-1.2 LM4041CIM3-1.2 LM4041DIM3-1.2 LM4041CIM3-ADJ LM4041DIM3-ADJ Voltage 1.225V 1.225V 1.225V 1.225V 1.24V to 10V 1.24V to 10V Accuracy, Temp. Coefficient ±0.1%, 100ppm/°C ±0.2%, 100ppm/°C ±0.5%, 100ppm/°C ±1.0%, 150ppm/°C ±0.5%, 100ppm/°C ±1.0%, 150ppm/°C
SOT-23 Package Markings
Example R__ Field 1st Character Code R = Reference Example _2_ Field Code Example __A Field 3rd Character Code A = ±0.1% B = ±0.2% C = ±0.5% D = ±1.0% 2nd Character 1 = 1.225V 2 = 2.500V 4 = 4.096V 5 = 5.000V A = Adjustable
Example: R2C represents Reference, 2.500V, ±0.5% (LM4040CIM3-2.5)
Note: If 3rd character is omitted, container will indicate tolerance.
LM4040/4041
2
January 2000
LM4040/4041
Micrel
Functional Diagram LM4040, LM4041 Fixed
Functional Diagram LM4041 Adjustable
+
+
VREF
FB
Absolute Maximum Ratings
Reverse Current ......... 20mA Forward Current ......... 10mA Maximum Output Voltage LM4041-Adjustable ......... 15V Power Dissipation at TA = 25°C (Note 2) ....... 306mW Storage Temperature ....... 65°C to +150°C Lead Temperature Vapor phase (60 seconds) ...... +215°C Infrared (15 seconds) ..... +220°C ESD Susceptibility Human Body Model (Note 3) ......... 2kV Machine Model (Note 3) ..... 200V
Operating Ratings (Notes 1 and 2)
Temperature Range (TMIN TA TMAX) .. 40°C TA +85°C Reverse Current LM4040-2.5 ......... 60µA to 15mA LM4040-4.1 ......... 68µA to 15mA LM4040-5.0 ......... 74µA to 15mA LM4041-1.2 ......... 60µA to 12mA LM4041-ADJ ....... 60µA to 12mA Output Voltage Range LM4041-ADJ ......... 1.24V to 10V
January 2000
3
LM4040/4041
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