参数资料
| 型号： | LM4040C50FTA |
| 厂商： | Diodes Inc |
| 文件页数： | 10/12页 |
| 文件大小： | 0K |
| 描述： | IC VREF SHUNT PREC 5V SOT-23-3 |
| 其它图纸： | Programmable SOT-23-3 Pin Out |
| 标准包装： | 1 |
| 基准类型： | 旁路，精度 |
| 输出电压： | 5V |
| 容差： | ±0.5% |
| 温度系数： | 100ppm/°C |
| 通道数： | 1 |
| 电流 - 阴极： | 60µA |
| 电流 - 输出： | 15mA |
| 工作温度： | -40°C ~ 125°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： | 标准包装 |
| 产品目录页面： | 1477 (CN2011-ZH PDF) |
| 其它名称： | LM4040C50FDKR |
A Product Line of
Diodes Incorporated
LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCES
Application Information
In a conventional shunt regulator application ( Figure 1 ), an external series resistor (R S ) is connected between the supply
voltage, V S , and the LM4040.
R S determines the current that flows through the load (I L ) and the LM4040 (I R ). Since load current and
supply voltage may vary, R S should be small enough to supply at least the minimum acceptable I R to the
V S
I R +
LM4040 even when the supply voltage is at its minimum and the load current is at its maximum value.
When the supply voltage is at its maximum and I L is at its minimum, R S should be large enough so that
the current flowing through the LM4040 is less than 15 mA.
R S
I L
I L
R S is determined by the supply voltage, (V S ), the load and operating current, (I L and I R ), and the
LM4040’s reverse breakdown voltage, V R .
I R
V R
R S =
V S ? V R
I L + I R
Printed circuit board layout considerations
LM4040s in the SOT23 package have the die attached to pin 1, which results in an electrical contact between pin 2 and pin
3. Therefore, pin 1 of the SOT-23 package must be left floating or connected to pin 2.
LM4040s in the SC70-5 package have the die attached to pin 2, which results in an electrical contact between pin 2 and pin
1. Therefore, pin 2 must be left floating or connected to pin1.
Ordering Information
25°C
Tol
Voltage
(V)
Order Code
Qualification? Package
Part
Mark
Reel
Size
Tape
Width
Quantity
per Reel
2.5
LM4040B25FTA
LM4040B25H5TA
Commercial
Commercial
SOT23
SC70-5
R2B
R2B
7”, 180mm
7”, 180mm
8mm
8mm
3000
3000
0.2%
3.0
5.0
LM4040B30FTA
LM4040B30H5TA
LM4040B50FTA
LM4040B50H5TA
Commercial
Commercial
Commercial
Commercial
SOT23
SC70-5
SOT23
SC70-5
R3B
R3B
R5B
R5B
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
8mm
8mm
8mm
8mm
3000
3000
3000
3000
2.5
LM4040C25FTA
LM4040C25H5TA
Commercial
Commercial
SOT23
SC70-5
R2C
R2C
7”,
7”,
180mm
180mm
8mm
8mm
3000
3000
0.5%
1%
3.0
5.0
2.5
3.0
5.0
LM4040C30FTA
LM4040C30H5TA
LM4040C50FTA
LM4040C50QFTA
LM4040C50H5TA
LM4040D25FTA
LM4040D25H5TA
LM4040D30FTA
LM4040D30H5TA
LM4040D50FTA
LM4040D50H5TA
Commercial
Commercial
Commercial
Automotive
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
SOT23
SC70-5
SOT23
SOT23
SC70-5
SOT23
SC70-5
SOT23
SC70-5
SOT23
SC70-5
R3C
R3C
R5C
R5C
R5C
R2D
R2D
R3D
R3D
R5D
R5D
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
8mm
8mm
8mm
8mm
8mm
8mm
8mm
8mm
8mm
8mm
8mm
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
3000
LM4040
Document number: DS33195 Rev. 5 - 2
10 of 12
March 2012
? Diodes Incorporated
相关PDF资料 |
PDF描述 |
|---|---|
| LM4040CIM3-5.0 TR | IC VREF SHUNT PREC 5V SOT-23-3 |
| LM4041CFTA | IC VREF SHUNT PREC 1.225V SOT-23 |
| LM4050AEX3-2.5/V+T | IC VREF SHUNT PREC 2.5V SC70-3 |
| LM431CCZXA | IC VREF SHUNT ADJ TO-92-3 |
| LM431SACMLX | IC VREF SHUNT ADJ SOT-89-3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4040C50H5TA | 功能描述:基准电压& 基准电流 5V 0.5% SHUNT REFERENCE 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 |
| LM4040C50IDBZR | 功能描述:基准电压& 基准电流 5-V Precision Mcrpwr Shunt .5% acc 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 |
| LM4040C50IDBZRG4 | 功能描述:基准电压& 基准电流 5-V Precision Mcrpwr Shunt .5% acc 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 |
| LM4040C50IDBZT | 功能描述:基准电压& 基准电流 5-V Precision Mcrpwr Shunt .5% acc 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 |
| LM4040C50IDBZT | 制造商:Texas Instruments 功能描述:IC VOLT REF PREC MCROPWR SOT23-3 制造商:Texas Instruments 功能描述:IC, VOLT REF PREC MCROPWR SOT23-3 制造商:Texas Instruments 功能描述:IC, VOLT REF PREC MCROPWR SOT23-3; Topology:Shunt; Reference Voltage:5V; Reference Voltage Tolerance:25mV; Voltage Reference Case Style:SOT-23; No. of Pins:3; Temperature Coefficient:15ppm/C; Operating Temperature Range:-40C to ;RoHS Compliant: Yes 制造商:Texas Instruments 功能描述:IC, VOLT REF PREC MCROPWR SOT23-3; Topology:Shunt; Reference Voltage:5V; Reference Voltage Tolerance:25mV; Voltage Reference Case Style:SOT-23; No. of Pins:3; Temperature Coefficient:15ppm/C; SVHC:No SVHC (19-Dec-2012); Base ;RoHS Compliant: Yes |
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