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LR8N3-G PDF预览

LR8N3-G

更新时间: 2024-11-16 03:12:11
品牌 Logo 应用领域
超科 - SUPERTEX 线性稳压器IC调节器电源电路输出元件PC
页数 文件大小 规格书
9页 693K
描述
High Input Voltage Adjustable 3-Terminal Linear Regulator

LR8N3-G 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Transferred零件包装代码:TO-92
包装说明:,针数:3
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:7.72
Is Samacsys:N最大差分输入-输出电压:450 V
最小差分输入-输出电压:12 VJESD-30 代码:O-PBCY-T3
JESD-609代码:e3功能数量:1
端子数量:3工作温度TJ-Max:125 °C
工作温度TJ-Min:-40 °C最大输出电压 1:440 V
最小输出电压 1:1.2 V封装主体材料:PLASTIC/EPOXY
封装形状:ROUND封装形式:CYLINDRICAL
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
调节器类型:ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR表面贴装:NO
端子面层:MATTE TIN端子形式:THROUGH-HOLE
端子位置:BOTTOM处于峰值回流温度下的最长时间:NOT SPECIFIED
Base Number Matches:1

LR8N3-G 数据手册

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LR8  
High Input Voltage  
Adjustable 3-Terminal Linear Regulator  
Features  
General Description  
The Supertex LR8 is a high voltage, low output current,  
adjustable linear regulator. It has a wide operating input  
voltage range of 13.2V to 450V. The output voltage can be  
adjusted from 1.20V to 440V provided that the input voltage  
is at least 12V greater than the output voltage. The output  
voltage can be adjusted by means of two external resistors  
R1 and R2 as shown in the typical application circuits. The  
LR8 regulates the voltage difference between VOUT and ADJ  
pins to a nominal value of 1.20V. The 1.20V is amplified by  
the external resistor ratio R1 and R2. An internal constant bias  
current of typically 10µA is connected to the ADJ pin. This  
increases VOUT by a constant voltage of 10µA times R2.  
13.2V to 450V input voltage range  
Adjustable 1.20V to 440V output regulation  
5% output voltage tolerance  
Output current limiting  
10µA typical ADJ current  
Internal junction temperature limiting  
Applications  
Off-line SMPS startup circuits  
Adjustable high voltage constant current source  
Industrial controls  
The LR8 has current limiting and temperature limiting. The  
output current limit is typically 20mA and the minimum  
temperature limit is 125°C. An output short circuit current will  
therefore be limited to 20mA. When the junction temperature  
reaches its temperature limit, the output current and/or output  
voltage will decrease to keep the junction temperature from  
exceeding its temperature limit. For SMPS start-up circuit  
applications, the LR8 turns off when an external voltage  
greater than the output voltage of the LR8 is applied to VOUT  
of the LR8. To maintain stability, a bypass capacitor of 1.0µF  
or larger and a minimum DC output current of 500µA are  
required.  
Motor controls  
Battery chargers  
Power supplies  
The device is available in TO-243AA (SOT-89), TO-252 (D-  
PAK), and TO-92 packages.  
Typical Application Circuit  
*
VOUT  
V
VOUT  
V
IN  
IN  
ADJ  
R1  
LR8  
C1  
C2  
RLOAD  
R2  
*Required for conditions where VIN is less than VOUT  
.

LR8N3-G 替代型号

型号 品牌 替代类型 描述 数据表
LR8N3 SUPERTEX

完全替代

High Input Voltage Adjustable 3-Terminal Linear Regulator

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