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SC431CSKQTRT PDF预览

SC431CSKQTRT

更新时间: 2024-09-27 06:10:15
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器电源电路参考电压源光电二极管输出元件
页数 文件大小 规格书
9页 226K
描述
Adjustable Shunt Regulator

SC431CSKQTRT 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Obsolete零件包装代码:SOT-23
包装说明:ROHS COMPLIANT, SOT-23, 3 PIN针数:3
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:8.25
Is Samacsys:N其他特性:THE OUTPUT VOLTAGE CAN BE ADJUSTED TO ANY VALUE FROM 2.495V TO 30V WITH TWO EXTERNAL RESISTORS
模拟集成电路 - 其他类型:THREE TERMINAL VOLTAGE REFERENCEJESD-30 代码:R-PDSO-G3
JESD-609代码:e3长度:2.9 mm
湿度敏感等级:1功能数量:1
输出次数:1端子数量:3
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:0.01 A最大输出电压:2.507 V
最小输出电压:2.482 V标称输出电压:2.495 V
封装主体材料:PLASTIC/EPOXY封装代码:TSOP
封装等效代码:TO-236封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.12 mm
子类别:Voltage References表面贴装:YES
技术:BIPOLAR最大电压温度系数:41.295 ppm/ °C
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.95 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
微调/可调输出:YES宽度:1.3 mm
Base Number Matches:1

SC431CSKQTRT 数据手册

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SC431  
Adjustable Shunt Regulator  
POWER MANAGEMENT  
Description  
Features  
The SC431 is a three terminal adjustable shunt  
regulator with thermal stability guaranteed over  
temperature. The output voltage can be adjusted to any  
value from 2.5V (VREF) to 30V with two external  
resistors. The SC431 has a typical dynamic output  
impedance of 0.25. Active output circuitry provides a  
very sharp turn on characteristic, making the SC431 an  
excellent replacement for zener diodes.  
‹ Wide operating current range 130µA to 150mA  
‹ Low dynamic output impedance 0.25 typ.  
‹ Trimmed bandgap design + 0.5%  
‹ Alternate for TL1431, TL431, LM431 & AS431  
‹ Industrial temperature range  
‹ Available in SOT-23-3 and SO-8 packages.  
Also available in Lead-free, fully WEEE and RoHS  
compliant.  
The SC431 shunt regulator is available with four  
voltage tolerances (0.5%, 1.0% and 2.0% over TA = -40°C  
to +85°C and 0.5% over TA = -40°C to +125°C) and two  
package options (SOT-23-3 and SO-8). This  
allows the designer the opportunity to select the  
optimum combination of cost and performance for their  
application.  
Applications  
‹ Linear Regulators  
‹ Adjustable Supplies  
‹ Switching Power Supplies  
‹ Battery Operated Computers  
‹ Instrumentation  
‹ Computer Disk Drives  
Typical Application Circuit(1)(2)  
Notes:  
1) Set VOUT according to the following equation:  
R1  
R2  
VOUT = VREF 1+  
+IREF R1  
2) Choose the value for R as follows:  
The maximum limit for R should be such that the  
cathode current, IZ, is greater than the minimum  
operating current (130µA) at VIN(MIN)  
.
The minimum limit for R should be such that IZ does  
not exceed 150mA under all load conditions, and the  
instantaneous turn-on value for IZ does not exceed  
200mA. Both of the following conditions must be met:  
V
IN(max)  
Rmin  
(to limit instantaneous turn-on IZ)  
200mA  
V
IN(max) VOUT  
Rmin  
(to limit IZ under normal  
IOUT(min) +150mA  
operating conditions)  
Revision: April 23, 2008  
1
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