參數(shù)資料
型號(hào)： HA17432UA
廠商： Hitachi,Ltd.
英文描述： 250000 SYSTEM GATE 1.5 VOLT FPGA
中文描述： 高精度變并聯(lián)穩(wěn)壓器
文件頁(yè)數(shù)： 11/15頁(yè)
文件大小： 146K
代理商： HA17432UA
HA17431H Series
Rev.0, Sep. 2001, page 11 of 15
Practical Example
Consider the example of a photocoupler, with an internal light emitting diode V
F
= 1.05 V and I
F
= 2.5 mA,
power supply output voltage V
2
= 5 V, and bias resistance R
2
current of approximately 1/5 I
F
at 0.5 mA. If
the shunt regulator V
K
= 3 V, the following values are found.
R
1
=5V
–
1.05V
–
3V
2.5mA + 0.5mA
R
2
=1.05V
0.5mA
= 316(
) (330
from E24 series)
= 2.1(k
) (2.2k
from E24 series)
Next, assume that R
3
= R
4
= 10 k
. This gives a 5 V output. If R
5
= 3.3 k
and C
1
= 0.022
μ
F, the
following values are found.
G
2
= 3.3 k
/ 10 k
= 0.33 times (–10 dB)
f
1
= 1 / (2
×
π
×
0.022
μ
F
×
316
×
10 k
) = 2.3 (Hz)
f
2
= 1 / (2
×
π
×
0.022
μ
F
×
3.3 k
) = 2.2 (kHz)
相關(guān)PDF資料
PDF描述
HA17432UPA Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp.
HA17432VLTP Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp.
HA17451 250000 SYSTEM GATE 1.5 VOLT FPGA
HA17451AFP 250000 SYSTEM GATE 1.5 VOLT FPGA
HA17451AP Switching Regulator Controllers for DC/DC Converters
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA17432UA-E 制造商:Renesas Electronics Corporation 功能描述:Power Sup,Shunt Req.,Vka=40V,Vref=2.495V
HA17432UPA 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:High-Precision Variable Shunt Regulators
HA17432VLTP 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp.
HA17432VUP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Shunt Regulato
HA17451 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Switching Regulator Controllers for DC/DC Converters
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