LR8中文资料PDF规格书
厂商型号 |
LR8 |
参数属性 | LR8 封装/外壳为TO-252-3,DPak(2 引线 + 接片),SC-63;包装为管件;类别为集成电路(IC) > 线性 + 开关稳压器;产品描述:IC REG LIN POS ADJ 10MA TO252 |
功能描述 | High Input Voltage Adjustable 3-Terminal Linear Regulator |
文件大小 |
601.86 Kbytes |
页面数量 |
11 页 |
生产厂商 | Supertex, Inc |
企业简称 |
SUTEX |
中文名称 | Supertex, Inc官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-6-21 18:26:00 |
LR8规格书详情
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 amplifi ed 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.
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.
The device is available in TO-243AA (SOT-89), TO-252 (D-PAK), and TO-92 packages.
Features
► 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
► Motor controls
► Battery chargers
► Power supplies
产品属性
- 产品编号:
LR8K4-G
- 制造商:
Microchip Technology
- 类别:
集成电路(IC) > 线性 + 开关稳压器
- 包装:
管件
- 输出配置:
正
- 输出类型:
可调式
- 电压 - 输入(最大值):
450V
- 电压 - 输出(最小值/固定):
1.2V
- 电压 - 输出(最大值):
438V
- 电流 - 输出:
10mA
- PSRR:
60dB(120Hz)
- 保护功能:
过流,超温
- 工作温度:
-40°C ~ 85°C
- 安装类型:
表面贴装型
- 封装/外壳:
TO-252-3,DPak(2 引线 + 接片),SC-63
- 供应商器件封装:
TO-252,(D-Pak)
- 描述:
IC REG LIN POS ADJ 10MA TO252
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
LR(朗瑞) |
23+ |
SOT233L |
6000 |
诚信服务,绝对原装原盘 |
询价 | ||
POLYFET |
24+ |
LR |
58000 |
全新原厂原装正品现货,可提供技术支持、样品免费! |
询价 | ||
2017+ |
SMD |
1585 |
只做原装正品假一赔十! |
询价 | |||
IR |
23+ |
TO-252 |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
POLYFET |
23+ |
高频管 |
280 |
专营高频管模块,全新原装! |
询价 | ||
LRC-乐山无线电 |
24+25+/26+27+ |
SOT-23-3 |
78800 |
一一有问必回一特殊渠道一有长期订货一备货HK仓库 |
询价 | ||
POLYFET |
NA |
5500 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
POLYFET |
23+ |
LR |
3128 |
原装正品代理渠道价格优势 |
询价 | ||
5000 |
公司存货 |
询价 | |||||
POLYFET |
18+ |
LR |
3128 |
原装进口假一罚十 |
询价 |