參數(shù)資料
型號(hào): UPD78046H
廠商: NEC Corp.
元件分類: DC/DC變換器
英文描述: 1 watt dc-dc converters
中文描述: 1瓦的DC - DC轉(zhuǎn)換器
文件頁數(shù): 34/58頁
文件大小: 552K
代理商: UPD78046H
34
μ
PD78044H, 78045H, 78046H
Notes 3.
Permissible total power loss differs depending on the temperature (see the following figure).
How to calculate total power loss
The power consumption of the
μ
PD78044H,
μ
PD78045H, and
μ
PD78046H can be classified into the three categories
shown below. The sum of the three categories should be less than the total power loss P
T
(80 % or less of ratings is
recommended).
CPU power consumption: calculate V
DD
(MAX.)
×
I
DD1
(MAX.).
Output pin power consumption: Normal output and display output are available. Power consumption when
maximum current flows into each output pin.
Pull-down resistor power consumption: Power consumption by pull-down resistor connected to display
output pin by the mask option.
–40
0
+40
+80
200
400
600
800
Temperature [
°
C]
T
T
1
2
3
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