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LM4041D

更新时间： 2024-11-21 11:07:55
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德州仪器 - TI 电源电路参考电压源
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精度为 1% 的可调节精密微功耗并联电压基准

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LM4041D 数据手册

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LM4041  
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE  
www.ti.com  
SLCS146C–FEBRUARY 2005–REVISED MAY 2005  
FEATURES  
•
Available in  
•
1.225-V Fixed and Adjustable Outputs  
(1.225 V to 10 V)  
– Industrial Temperature: –40°C to 85°C  
– Extended Temperature: –40°C to 125°C  
Applications  
•
Tight Output Tolerances and Low  
Temperature Coefficient  
•
– Data-Acquisition Systems  
– Power Supplies and Power-Supply Monitors  
– Instrumentation and Test Equipment  
– Process Control  
– Max 0.1%, 100 ppm/°C – A Grade  
– Max 0.2%, 100 ppm/°C – B Grade  
– Max 0.5%, 100 ppm/°C – C Grade  
– Max 1.0%, 150 ppm/°C – D Grade  
Low Output Noise . . . 20 µVRMS (Typ)  
– Precision Audio  
•
•
– Automotive Electronics  
Wide Operating Current Range . . .  
45 µA (Typ) to 12 mA  
– Energy Management/Metering  
– Battery-Powered Equipment  
•
Stable With All Capacitive Loads; No Output  
Capacitor Required  
1.2 V . . . DBZ (SOT-23) PACKAGE  
(TOP VIEW)  
1.2 V . . . DCK (SC-70) PACKAGE  
(TOP VIEW)  
1.2 V . . . LP (TO-92/TO-226) PACKAGE  
(TOP VIEW)  
1
1
ANODE  
ANODE  
NC  
NC  
5
4
CATHODE  
*
3
2
3
*
CATHODE  
NC  
2
ANODE  
CATHODE  
* Pin 3 must be connected to  
ANODE or left open.  
NC − No internal connection  
* Pin 2 must be connected to  
ANODE or left open.  
NC − No internal connection  
Adjustable . . . DBZ (SOT-23) PACKAGE  
(TOP VIEW)  
Adjustable . . . DCK (SC-70) PACKAGE  
(TOP VIEW)  
Adjustable . . . LP (TO-92/TO-226) PACKAGE  
(TOP VIEW)  
5
1
1
FB  
FB  
NC  
ANODE  
ANODE  
3
2
3
ANODE  
CATHODE  
FB  
2
CATHODE  
4
NC  
CATHODE  
NC − No internal connection  
DESCRIPTION/ORDERING INFORMATION  
The LM4041 series of shunt voltage references are versatile, easy-to-use references with a vast array of  
applications. They require no external resistors or capacitors for operation and are stable with all capacitive  
loads. Additionally, the reference offers low dynamic impedance, low noise, and a low temperature coefficient to  
ensure a stable output voltage over a wide range of operating currents and temperatures. The LM4041 uses fuse  
and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage tolerances, ranging  
from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility is offered to  
designers in choosing the best cost-to-performance ratio for their applications. The LM4041 is available in a fixed  
(1.225 V nominal) or an adjustable version (which requires an external resistor divider to set the output to a value  
between 1.225 V and 10 V).  
Packaged in space-saving SC-70 and SOT-23-3 and requiring a minimum current of 45 µA (typ), the LM4041  
also is ideal for portable applications. The TO-92 package also is available for through-hole packaging needs.  
The LM4041xI is characterized for operation over an ambient temperature range of –40°C to 85°C. The  
LM4041xQ is characterized for operation over an ambient temperature range of –40°C to 125°C.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2005, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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