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LM1815MX/NOPB PDF预览

LM1815MX/NOPB

更新时间: 2024-01-01 02:20:31
品牌 Logo 应用领域
美国国家半导体 - NSC 光电二极管
页数 文件大小 规格书
11页 760K
描述
IC SPECIALTY ANALOG CIRCUIT, PDSO14, SOP-14, Analog IC:Other

LM1815MX/NOPB 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:SOP, SOP14,.25Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.33.00.01
风险等级:6.87模拟集成电路 - 其他类型:ANALOG CIRCUIT
JESD-30 代码:R-PDSO-G14JESD-609代码:e3
长度:8.64 mm湿度敏感等级:1
功能数量:1端子数量:14
最高工作温度:125 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP14,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Other Analog ICs最大供电电流 (Isup):6 mA
最大供电电压 (Vsup):12 V最小供电电压 (Vsup):2.5 V
标称供电电压 (Vsup):10 V表面贴装:YES
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.91 mmBase Number Matches:1

LM1815MX/NOPB 数据手册

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March 2005  
LM1815  
Adaptive Variable Reluctance Sensor Amplifier  
General Description  
Features  
n Adaptive hysteresis  
The LM1815 is an adaptive sense amplifier and default  
gating circuit for motor control applications. The sense am-  
plifier provides a one-shot pulse output whose leading edge  
coincides with the negative-going zero crossing of a ground  
referenced input signal such as from a variable reluctance  
magnetic pick-up coil.  
n Single supply operation  
n Ground referenced input  
n True zero crossing timing reference  
n Operates from 2V to 12V supply voltage  
n Handles inputs from 100 mVP-P to over 120VP-P with  
external resistor  
In normal operation, this timing reference signal is pro-  
cessed (delayed) externally and returned to the LM1815. A  
Logic input is then able to select either the timing reference  
or the processed signal for transmission to the output driver  
stage.  
n CMOS compatible logic  
Applications  
n Position sensing with notched wheels  
n Zero crossing switch  
n Motor speed control  
n Tachometer  
The adaptive sense amplifier operates with a positive-going  
threshold which is derived by peak detecting the incoming  
signal and dividing this down. Thus the input hysteresis  
varies with input signal amplitude. This enables the circuit to  
sense in situations where the high speed noise is greater  
than the low speed signal amplitude. Minimum input signal is  
n Engine testing  
150mVP-P  
.
Connection Diagram  
00789301  
Top View  
Order Number LM1815M or LM1815N  
See NS Package Number M14A or N14A  
© 2005 National Semiconductor Corporation  
DS007893  
www.national.com  

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