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参数资料
| 型号： | LM4040CIM3-2.5 TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC VREF SHUNT PREC 2.5V SOT-23-3 |
| 标准包装： | 3,000 |
| 基准类型： | 旁路，精度 |
| 输出电压： | 2.5V |
| 容差： | ±0.5% |
| 温度系数： | 100ppm/°C |
| 通道数： | 1 |
| 电流 - 阴极： | 65µA |
| 电流 - 输出： | 15mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-236-3，SC-59，SOT-23-3 |
| 供应商设备封装： | SOT-23-3 |
| 包装： | 带卷 (TR) |
LM4040/4041
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 ?xed reverse breakdown
voltages of 2.500V, 4.096V and 5.000V. The LM4041 is avail-
able with a ?xed 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.
Micrel, Inc.
LM4040/4041
Precision Micropower Shunt Voltage Reference
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 Speci?cations
? Output voltage tolerance ............................. ±0.1% (max)
? Low output noise (10Hz to 100Hz)
LM4040 ................................................. 35μV RMS (typ)
LM4041 ................................................. 20μV RMS (typ)
? Wide operating current range
LM4040 ..................................................60μA to 15mA
LM4041 ..................................................60μA to 12mA
? Industrial temperature range .................. –40°C to +85°C
? Low temperature coef?cient ................ 100ppm/°C (max)
Applications
?
?
?
?
?
?
?
?
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
R S
V R
LM4040
LM4041
I Q + I L
I L
I Q
V O
LM4041
ADJUSTABLE
R 1
R 2
V O
V O = 1.233 (R 2 /R 1 + 1)
Figure 1. LM4040, LM4041 Fixed
Shunt Regulator Application
Figure 2. LM4041 Adjustable
Shunt Regulator Application
Micrel, Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel + 1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
March 2005
1
M9999-031805
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4040CIM3-3.0 | 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 |
| LM4040CIM3-3.0/NOPB | 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 |
| LM4040CIM3-3.0+ | 制造商:Maxim Integrated Products 功能描述:V-REF PRECISION 3V 15MA 3PIN SOT-23 - Rail/Tube |
| LM4040CIM3-3.0+T | 功能描述:基准电压& 基准电流 uPower Shunt V-Ref w/Mult Brkdwn V 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 |
| LM4040CIM3-3.0-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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