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MLL821A PDF预览

MLL821A

更新时间: 2024-10-27 22:51:15
品牌 Logo 应用领域
美高森美 - MICROSEMI 二极管齐纳二极管温度补偿
页数 文件大小 规格书
3页 190K
描述
6.2 & 6.55 Volt Temperature Compensated Surface Mount Zener Reference Diodes

MLL821A 数据手册

 浏览型号MLL821A的Datasheet PDF文件第1页浏览型号MLL821A的Datasheet PDF文件第2页 
1N821UR thru 1N829AUR-1  
(or MLL821 thru MLL829-1)  
6.2 & 6.55 Volt Temperature Compensated  
Surface Mount Zener Reference Diodes  
S C O T T S D A L E D I V I S I O N  
GRAPHS  
I – Operating Current (mA)  
I – OpFerIaGtinUgRCEurr2ent (mA)  
FIGURE 3  
Z
Z
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT  
WITH CHANGE IN OPERATING CURRENT.  
TYPICAL CHANGE OF ZENER VOLTAGE  
WITH CHANGE IN OPERATING CURRENT  
The curve shown in Figure 2 is typical of the diode series and greatly simplifies  
the estimation of the Temperature Coefficient (TC) when the diode is operated at  
currents other than 7.5mA.  
EXAMPLE: A diode in this series is operated at a current of 7.5mA and has  
specified Temperature Coefficient (TC) limits of +/-0.005%/oC. To obtain the  
typical Temperature Coefficient limits for this same diode operated at a current of  
6.0mA, the new TC limits (%/oC) can be estimated using the graph in FIGURE 2.  
At a test current of 6.0mA the change in Temperature Coefficient (TC) is  
approximately –0.0006%.oC. The algebraic sum of +/-0.005%oC and –  
0.0006%/oC gives the new estimated limits of +0.0044%/oC and -0.0056%/oC.  
This curve in Figure 3 illustrates the change of diode  
voltage arising from the effect of impedance. It is in effect  
an exploded view of the zener operating region of the I-V  
characteristic.  
In conjunction with Figure 2, this curve can be used to  
estimate total voltage regulation under conditions of both  
varying temperature and current.  
INCHES  
MILLIMETERS  
MIN MAX  
DIM  
A
MIN  
MAX  
0.067  
0.146  
0.022  
0.063  
0.130  
0.016  
1.60  
1.70  
3.30  
0.41  
3.70  
0.55  
B
PAD LAYOUT  
C
INCHES  
.200  
mm  
5.08  
1.40  
2.03  
A
B
C
.055  
.080  
Copyright 2003  
Microsemi  
Page 3  
12-19-2003 REV A  
Scottsdale Division  
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503  

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