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LM4040 数据表(PDF) 1 Page - Micrel Semiconductor |
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LM4040 数据表(HTML) 1 Page - Micrel Semiconductor |
1 / 16 page 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 fixed reverse breakdown voltages of 2.500V, 4.096V and 5.000V. The LM4041 is avail- able with a fixed 1.225V or an adjustable reverse breakdown voltage. 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 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 Specifications • Output voltage tolerance .............................±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 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 |
类似零件编号 - LM4040_05 |
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类似说明 - LM4040_05 |
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