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HEF4047BF PDF预览

HEF4047BF

更新时间: 2024-02-19 22:43:10
品牌 Logo 应用领域
恩智浦 - NXP 振荡器
页数 文件大小 规格书
16页 279K
描述
Monostable/astable multivibrator

HEF4047BF 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:TransferredReach Compliance Code:unknown
HTS代码:8542.39.00.01风险等级:5.19
其他特性:RETRIGGERABLE; FREE RUNNING/GATABLE ASTABLE OPERATING MODES OSCILLATOR OUTPUT系列:4000/14000/40000
JESD-30 代码:R-PDSO-G14JESD-609代码:e4
长度:8.65 mm负载电容(CL):50 pF
逻辑集成电路类型:MONOSTABLE MULTIVIBRATOR湿度敏感等级:1
数据/时钟输入次数:2功能数量:1
端子数量:14最高工作温度:85 °C
最低工作温度:-40 °C输出极性:COMPLEMENTARY
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260传播延迟(tpd):320 ns
认证状态:Not Qualified座面最大高度:1.75 mm
最大供电电压 (Vsup):15 V最小供电电压 (Vsup):3 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:NICKEL PALLADIUM GOLD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:30宽度:3.9 mm
Base Number Matches:1

HEF4047BF 数据手册

 浏览型号HEF4047BF的Datasheet PDF文件第10页浏览型号HEF4047BF的Datasheet PDF文件第11页浏览型号HEF4047BF的Datasheet PDF文件第12页浏览型号HEF4047BF的Datasheet PDF文件第14页浏览型号HEF4047BF的Datasheet PDF文件第15页浏览型号HEF4047BF的Datasheet PDF文件第16页 
Philips Semiconductors  
Product specification  
HEF4047B  
MSI  
Monostable/astable multivibrator  
5. Timing component limitations  
The capacitor used in the circuit should be non-polarized and have low leakage (i.e. the parallel resistance of the  
capacitor should be an order of magnitude greater than the external resistor used).  
There is no upper or lower limit for either Rt or Ct value to maintain oscillation.  
However, in consideration of accuracy, Ct must be much larger than the inherent stray capacitance in the system (unless  
this capacitance can be measured and taken into account).  
Rt must be much larger than the LOCMOS ‘ON’ resistance in series with it, which typically is hundreds of ohms.  
The recommended values for Rt and Ct to maintain agreement with previously calculated formulae without trimming  
should be:  
Ct 100 pF, up to any practical value,  
10 kΩ ≤ Rt 1 M.  
6. Power consumption  
In the standby mode (monostable or astable), power dissipation will be a function of leakage current in the circuit.  
For dynamic operation, the power needed to charge the external timing capacitor Ct is given by the following formulae:  
Astable mode:  
P = 2 Ct V2 f (f at output pin 13)  
P = 4 Ct V2 f (f at output pins 10 and 11)  
2, 9 Ct V2 (duty cycle)  
Monostable mode:  
--------------------------------------------------------------------  
P =  
(f at output pins 10 and 11)  
T
Because the power dissipation does not depend on Rt, a design for minimum power dissipation would be a small value  
of Ct. The value of R would depend on the desired period (within the limitations discussed previously).  
Typical power consumption in astable mode is shown in Figs 10, 11 and 12.  
January 1995  
13  

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