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參數(shù)資料
| 型號： | LM3411AM5X-3.3 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Precision Secondary Regulator/Driver |
| 中文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 3.3 V, PDSO5 |
| 封裝： | SOT-23, SOP-5 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大?。?/td> | 350K |
| 代理商： | LM3411AM5X-3.3 |
LM3411
Precision Secondary Regulator/Driver
General Description
The LM3411 is a low power fixed-voltage (3.3V or 5.0V) pre-
cision shunt regulator designed specifically for driving an op-
toisolator to provide feedback isolation in a switching regula-
tor.
The LM3411 circuitry includes an internally compensated op
amp, a bandgap reference, NPN output transistor, and volt-
age setting resistors.
A trimmed precision bandgap reference with temperature
drift curvature correction, provides a guaranteed 1% preci-
sion over the operating temperature range (Agrade version).
The amplifier’s inverting input is externally accessible for
loop frequency compensation when used as part of a larger
servo system. The output is an open-emitter NPN transistor
capable of driving up to 15 mA of load current.
Because of its small die size, the LM3411 has been made
available in the sub-miniature 5-lead SOT23-5 surface
mount package. This package is ideal for use in space criti-
cal applications.
Although its main application is to provide a precision output
voltage (no trimming required) and maintain very good regu-
lation in isolated DC/DC converters, it can also be used with
other types of voltage regulators or power semiconductors to
provide a precision output voltage without precision resistors
or trimming.
Features
n
Fixed voltages of 3.3V and 5.0V with initial tolerance of
±
1% for standard grade and
±
0.5% for A grade
n
Custom voltages available (3V–17V)
n
Wide output current range, 20 μA–15 mA
n
Low temperature coefficient
n
Available in 5-lead SOT23-5 surface mount package
(tape and reel)
Applications
n
Secondary controller for isolated DC/DC PWM switching
regulators systems
n
Use with LDO regulator for high-precision fixed output
regulators
n
Precision monitoring applications
n
Use with many types of regulators to increase precision
and improve performance
Typical Application and Functional Diagram
SIMPLE SWITCHER
is a tradmark of National Semiconductor Corporation.
DS011987-1
Basic Isolated DC/DC Converter
DS011987-2
LM3411 Functional Diagram
December 1999
L
1999 National Semiconductor Corporation
DS011987
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM3411AN-3.3 | IC-VOLTAGE REG +3.3V |
| LM3411N-5.0 | IC-VOLTAGE REGULATOR 5V |
| LM3411M5-3.3 | Hook-Up Wire; Conductor Size AWG:22; No. Strands x Strand Size:7 x 30; Jacket Color:White/Red; Cable/Wire MIL SPEC:MIL-W-16878/1 Type B; Conductor Material:Copper; Jacket Material:Polyvinylchloride (PVC) RoHS Compliant: Yes |
| LM3411AM5-5.0 | Precision Secondary Regulator/Driver |
| LM3411AM5X-5.0 | Precision Secondary Regulator/Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3411AM5X-5.0 | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM3411AM5X-5.0/NOPB | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM3411AN-3.3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM3411M5-3.3 | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM3411M5-3.3/NOPB | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
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