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LR645N5-G PDF预览

LR645N5-G

更新时间: 2024-10-29 03:04:19
品牌 Logo 应用领域
超科 - SUPERTEX 线性稳压器IC调节器电源电路开关输出元件局域网
页数 文件大小 规格书
9页 808K
描述
High Input Voltage SMPS Start-up / Linear Regulator

LR645N5-G 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:SFM包装说明:, SIP3,.1TB
针数:3Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:8.03可调性:FIXED
最大绝对输入电压:450 V最大输入电压:450 V
最小输入电压:15 VJESD-30 代码:R-PSFM-T3
JESD-609代码:e3最大电网调整率:0.2%
最大负载调整率:0.4%功能数量:1
输出次数:1端子数量:3
工作温度TJ-Max:125 °C工作温度TJ-Min:-40 °C
最大输出电流 1:0.003 A最大输出电压 1:11.5 V
最小输出电压 1:9 V标称输出电压 1:10 V
封装主体材料:PLASTIC/EPOXY封装等效代码:SIP3,.1TB
封装形状:RECTANGULAR封装形式:FLANGE MOUNT
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
调节器类型:FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR子类别:Other Regulators
表面贴装:NO端子面层:MATTE TIN
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:SINGLE处于峰值回流温度下的最长时间:NOT SPECIFIED
最大电压容差:15%Base Number Matches:1

LR645N5-G 数据手册

 浏览型号LR645N5-G的Datasheet PDF文件第2页浏览型号LR645N5-G的Datasheet PDF文件第3页浏览型号LR645N5-G的Datasheet PDF文件第4页浏览型号LR645N5-G的Datasheet PDF文件第5页浏览型号LR645N5-G的Datasheet PDF文件第6页浏览型号LR645N5-G的Datasheet PDF文件第7页 
LR645  
High Input Voltage SMPS Start-up / Linear Regulator  
Features  
General Description  
The Supertex LR645 is a high input voltage, low output  
current linear regulator. It has a 3-terminal fixed output voltage  
version available in TO-92, TO-220 and SOT-89 packages,  
as well as an adjustable voltage version available in an 8-  
lead SOIC package. The 3-terminal version functions like any  
other low voltage 3-terminal regulator except it allows the use  
of much higher input voltages. When used in a SMPS start-  
up circuit, it eliminates the need for large power resistors. In  
this application, current is drawn from the high voltage line  
only during start-up. Only leakage current flows after start-up,  
thereby reducing the continuous power dissipation to a few  
milliwatts.  
Accepts inputs from 15V to 450V  
Output currents up to 3.0mA continuous, 30mA peak  
Supply current typically 50µA  
Line regulation typically 0.1mV/V  
Output can be trimmed from 8.0V to 12V  
Output current can be increased to 150mA with  
external FET  
Applications  
Off-line SMPS startup circuits (pulse loads)  
Low power off-line regulators  
Regulators for noisy inputs  
The adjustable voltage version allows trimming of the output  
voltage from 8.0V to 12V. This version can also be connected  
to an external depletion mode MOSFET for increased output  
current. When used in conjunction with Supertex depletion  
mode MOSFET DN2540N5, an output current of up to 150mA  
is achieved.  
Caution!  
The LR645 does NOT provide galvanic isolation.  
When operated from an AC line, potentially lethal  
voltages can be present on the IC. Adequate means  
of protecting the end user from such voltages must be  
provided by the circuit developer.  
Block Diagram  
VIN  
LR645  
VOUT  
TRIM  
GATE  
GND  
+

LR645N5-G 替代型号

型号 品牌 替代类型 描述 数据表
LR645N5 SUPERTEX

完全替代

High Input Voltage SMPS Start-up / Linear Regulator

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