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參數(shù)資料
| 型號： | HA17431PNA |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. |
| 中文描述： | 關(guān)于在諸如日立電器和日立二十，文件提及的瑞薩科技公司名稱變更 |
| 文件頁數(shù)： | 18/26頁 |
| 文件大?。?/td> | 236K |
| 代理商： | HA17431PNA |
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HA17431 Series
Rev.1, Sep. 2002, page 16 of 24
Application Hints
(cont.)
No.
Application Example
Description
6
Constant voltage regulator circuit
V
CC
R
1
R
2
R
3
Cf
Q
Vout
GND
GND
This is a 3-pin regulator with a discrete configuration, in
which the output voltage
Vout = 2.5 V
×
(R
2
+ R
3
)
R
3
R
is a bias resistance for supplying the HA17431
cathode current and the output transistor Q base
current.
7
Discharge type constant current circuit
GND
V
CC
R
R
S
Q
L
2.5 V
+
–
I
L
This circuit supplies a constant current of
I
L
[A] into the load. Caution is required
2.5 V
R
S
since the HA17431 cathode current is also
superimposed on I
L
.
The requirement in this circuit is that the cathode
current must be greater than Imin = 1 mA. The I
setting therefore must be on the order of several mA or
more.
8
Induction type constant current circuit
GND
V
CC
R
Q
L
2.5 V
+
–
I
L
R
S
In this circuit, the load is connected on the collector
side of transistor Q in circuit 7 above. In this case, the
load floats from GND, but the HA17431 cathode current
is not superimposed on I
, so that I
can be kept small
(1 mA or less is possible). The constant current value
is the same as for circuit 7 above:
I
L
[A]
2.5 V
R
S
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HA17431VLTP | Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. |
| HA17431 | Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. |
| HA17431FP | 250000 SYSTEM GATE 1.5 VOLT FPGA |
| HA17431P | Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. |
| HA17431PA | 250000 SYSTEM GATE 1.5 VOLT FPGA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA17431PNAJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| HA17431PNA-TZ-E | 制造商:Renesas Electronics Corporation 功能描述:Shunt Regulator,2.495V 1%,150mA,TO-92V 制造商:Renesas 功能描述:V-Ref Adjustable 150mA 3-Pin TO-92 T/R |
| HA17431PNATZ-E | 制造商:Renesas Electronics 功能描述:Cut Tape |
| HA17431PS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Adjustable Voltage Regulator |
| HA17431SERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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