參數(shù)資料
型號(hào)： HA17431PA
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)： 16/26頁(yè)
文件大?。?/td> 236K
代理商： HA17431PA
HA17431 Series
Rev.1, Sep. 2002, page 14 of 24
Application Examples
As shown in the figure on the right, this IC operates as an inverting amplifier, with the REF pin as input
pin. The open-loop voltage gain is given by the reciprocal of
“
reference voltage deviation by cathode
voltage change
”
in the electrical specifications, and is approximately 50 to 60 dB. The REF pin has a high
input impedance, with an input current Iref of 3.8
μ
A Typ (V version: Iref = 2
μ
A Typ). The output
impedance of the output pin K (cathode) is defined as dynamic impedance Z
KA
, and Z
KA
is low (0.2
) over
a wide cathode current range. A (anode) is used at the minimum potential, such as ground.
K
V
CC
OUT
V
EE
A
REF
V
Z
2.5V
–
+
Figure 1 Operation Diagram
Application Hints
No.
Application Example
Description
1
Reference voltage generation circuit
K
R
C
L
Vout
GND
Vin
GND
REF
A
This is the simplest reference voltage circuit. The value
of the resistance R is set so that cathode current I
K
≥
1
mA.
Output is fixed at Vout
2.5 V.
The external capacitor C
(C
≥
3.3
μ
F) is used to
prevent oscillation in normal applications.
2
Variable output shunt regulator circuit
K
R
C
L
Vout
GND
Vin
GND
A
R
1
R
2
REF
Iref
This is circuit 1 above with variable output provided.
Vout
2.5 V
×
Here,
(R
1
+ R
2
)
R
2
Since the reference input current Iref = 3.8
μ
A Typ (V
version: Iref = 2
μ
A Typ) flows through R
, resistance
values are chosen to allow the resultant voltage drop to
be ignored.
相關(guān)PDF資料
PDF描述
HA17431VLP 250000 SYSTEM GATE 1.5 VOLT FPGA
HA17431VP Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp.
HA17431UA Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp.
HA17431UPA Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp.
HA17431VUP Infrared Temperature Sensor; Sensor Output Type:K thermocouple; Field of View:10:1; Sensor Terminals:Cable; Accuracy: 1%; Features:Miniature Sensing Head with separate electronics; Response Time:200ms; Supply Voltage:24VDC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA17431PA-E 制造商:Renesas Electronics 功能描述:Precision Bulk 制造商:Renesas 功能描述:V-Ref Adjustable 150mA 3-Pin TO-92 Mod
HA17431PAJ 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
HA17431PA-TZ-E 制造商:Renesas Electronics Corporation 功能描述:Power Sup,Shunt Req.,Vka=40V,Vref=2.495V
HA17431P-E 制造商:Renesas Electronics 功能描述:Adjustable Bulk
HA17431PJ 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Shunt Regulator
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