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參數(shù)資料
| 型號： | M5450B7 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | LED DISPLAY DRIVERS |
| 中文描述： | LED顯示驅(qū)動器 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 243K |
| 代理商： | M5450B7 |
7/12
M5450, M5451
POWER DISSIPATION OF THE IC
The power dissipation of the IC can be limited us-
ing different configurations.
Figure 11- In the application R must be chosen
taking into account the worst operating conditions.
Figure 11.
R is determined by the maximum number of seg-
ments activated
The worst case condition for the device is when
roughly half of the maximum number of segments
are activated.
It must be checked that the total power dissipation
does not exceed the absolute maximum ratings of
the device.
In critical cases more resistors can be used in con-
junction with groups of segments.
In this case the current variation in the single resis-
tor is reduced and P
tot
limited.
Figure 12 - In this configuration the drop on the se-
rial connected diodes is quite stable if the diodes
are properly chosen.
The total power dissipation of the IC depends, in a
first approximation, only on the number of seg-
ments activated.
Figure 12.
Figure 13 - In this configuration V
OUT
+ V
D
is con-
stant. The total power dissipation of the IC de-
pends only on the number of segments activated.
Figure 13.
VD
VOUT
R
ID
+VC
R
VC
VDMAX
NMAXLD
–
VOMIN
–
=
+V
C
+V
C
V
OUT
+V
D
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M5451 | LED DISPLAY DRIVERS |
| M5451B7 | LED DISPLAY DRIVERS |
| M5451Q | LED DISPLAY DRIVERS |
| M5480 | LED DISPLAY DRIVER |
| M5480B7 | LED DISPLAY DRIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M5450B7 | 制造商:STMicroelectronics 功能描述:LED DRIVER 34 SEGMENT 5450 DIP40 |
| M5451 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LED DISPLAY DRIVERS |
| M54512L | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:4 UNIT 50MA TRANSISTOR ARRAY |
| M54513 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:8 UNIT 50MA TRANSISTOR ARRAY |
| M54513FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:8-UNIT 50mA TRANSISTOR ARRAY |
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