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U479B-MY PDF预览

U479B-MY

更新时间: 2024-11-02 03:25:03
品牌 Logo 应用领域
爱特美尔 - ATMEL 电源电路电源管理电路光电二极管监控异步传输模式ATM
页数 文件大小 规格书
7页 184K
描述
Automotive Lamp-outage Monitor IC

U479B-MY 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:DIP
包装说明:DIP, DIP8,.3针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.69
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:R-PDIP-T8JESD-609代码:e3
长度:9.7 mm湿度敏感等级:1
信道数量:2功能数量:1
端子数量:8最高工作温度:95 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP8,.3
封装形状:RECTANGULAR封装形式:IN-LINE
峰值回流温度(摄氏度):260电源:9/15 V
认证状态:Not Qualified座面最大高度:4.8 mm
子类别:Automotive Circuits最大供电电流 (Isup):6 mA
最大供电电压 (Vsup):15 V最小供电电压 (Vsup):9 V
标称供电电压 (Vsup):12 V表面贴装:NO
技术:BIPOLAR温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn) - annealed端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:7.62 mm
Base Number Matches:1

U479B-MY 数据手册

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Features  
2-kV ESD Protection  
Two Comparators with Common Reference  
Tight Threshold Tolerance  
Threshold Matched to PTC Characteristic of Incandescent Lamps  
Temperature Compensated  
NPN Output  
Automotive  
Lamp-outage  
Monitor IC  
Interference and Damage-protection According to VDE 0839  
EMI Protection  
Reversal Polarity Protection  
Load-dump Protection  
1. Description  
The monolithic integrated bipolar circuit, U479B, is designed as a monitor for lamp fail-  
ure in automobiles. The comparator threshold is matched to the PTC characteristic of  
incandescent lamps. The threshold is tied to V4,6 = VS – VT where VT = 8 mV.  
U479B  
If the voltage drop across the shunt resistor, Rsh, exceeds 8 mV, the output is turned  
off, otherwise, the output is turned on. Without supply voltage or open input pin 8, the  
output is turned off. A comparator input, which is not used, must be connected to  
pin 7.  
Figure 1-1. Schematic and Application Circuit  
VS  
VBatt  
2
7
Rsh  
Z2  
5
OUT1  
-
&
+
4
8
0.6 VS  
Rsh  
-
+
3
-
OUT2  
+
&
6
1
R1  
150 Ω  
Lamps  
Rev. 4775B–AUTO–09/05  

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