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LM4050
Precision Micropower Shunt Voltage Reference
General Description
Ideal for space critical applications, the LM4050 precision
voltage reference is available in the sub-miniature (3 mm x
1.3 mm) SOT-23 surface-mount package. The LM4050’s de-
sign eliminates the need for an external stabilizing capacitor
while ensuring stability with any capacitive load, thus making
the LM4050 easy to use. Further reducing design effort is the
availability of several fixed reverse breakdown voltages:
2.500V, 4.096V, 5.000V, 8.192V, and 10.000V. The minimum
operating current increases from 60 A for the LM4050-2.5
to 100 A for the LM4050-10.0. All versions have a maximum
operating current of 15 mA.
The LM4050 utilizes fuse and 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 25C.
Bandgap reference temperature drift curvature correction
and low dynamic impedance ensure stable reverse break-
down voltage accuracy over a wide range of operating tem-
peratures and currents.
All grades and voltage options of the LM4050 are available
in both an industrial temperature range (40C and +85C)
and an extended temperature range (40C and +125C).
Features
n
Small packages: SOT-23
n
No output capacitor required
n
Tolerates capacitive loads
n
Fixed reverse breakdown voltages of 2.500V, 4.096V,
5.000V, 8.192V, and 10.000V
Key Specifications (LM4050-2.5)
j Output voltage tolerance
(A grade, 25C)
±0.1% (max)
j Low output noise
(10 Hz to 10 kHz)
41 V
rms(typ)
j Wide operating current range
60 A to 15 mA
j Industrial temperature range
40C to +85C
j Extended temperature range
40C to +125C
j Low temperature coefficient
50 ppm/C (max)
Applications
n
Portable, Battery-Powered Equipment
n
Data Acquisition Systems
n
Instrumentation
n
Process Control
n
Energy Management
n
Product Testing
n
Automotive
n
Precision Audio Components
Connection Diagram
SOT-23
10104501
*This pin must be left floating or connected to pin 2.
Top View
See NS Package Number MF03A
May 2002
LM4050
Precision
Micropower
Shunt
V
oltage
Reference
2002 National Semiconductor Corporation
DS101045
www.national.com
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相关PDF资料
LM4050BIM3-2.5+T 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, PDSO3
LM4050AIM3-4.1+T 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 4.096 V, PDSO3
LM4051BIM3-1.2+T 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.225 V, PDSO3
LM4050BIX3-5.0+T 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 5 V, PDSO3
LM4050BIM3-2.1+T 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.048 V, PDSO3
LM4050BIM3-3.0+T 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 3 V, PDSO3
LM4051CIM3-1.2+T 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.225 V, PDSO3
LM4140B-2.0MWC 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.048 V, UUC
相关代理商/技术参数
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LM4050BIM3-10/NOPB 功能描述:基准电压& 基准电流 Prec MicroPwr Shunt Vtg Ref RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel
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LM4050BIM3-2.1 制造商:Maxim Integrated Products 功能描述:50PPM/+C PRECISION MICROPOWER SHUNT - Rail/Tube
LM4050BIM3-2.1+ 制造商:Maxim Integrated Products 功能描述:V-REF PRECISION 2.048V 15MA 3PIN SOT-23 - Rail/Tube
LM4050BIM3-2.1+T 制造商:Maxim Integrated Products 功能描述:V-REF PRECISION 2.048V 15MA 3PIN SOT-23 - Tape and Reel
LM4050BIM3-2.1-T 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel
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