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PDF CP432 Data sheet ( Hoja de datos )
| Número de pieza | CP432 | |
| Descripción | Adjustable Precision Shunt Regulator | |
| Fabricantes | Ceramate Technical | |
| Logotipo |  |
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CP432
Adjustable Precision Shunt Regulator
Features
- Precision reference voltage
CP432 : 1.24V ± 1%
CP432A : 1.24V ± 0.5%
- Sink current capability: 200mA.
- Minimum cathode current for regulation: 150µA
- Equivalent full-range temp coefficient: 30 ppm/oC
- Fast turn-on Response.
- Low dynamic output impedance: 0.2Ω
- Programmable output voltage to 20v
- Low output noise
- Packages: SOT89, SOT23, TO92
Typical Application Circuit
General Description
The CP432/432A are 3-terminal adjustable
precision shunt regulators with guaranteed stable
temperature over the applicable extended
commercial temperature range. The output voltage
may be set at any level greater than 1.24\/ (VREF) up
to 20V merely by selecting two external resistors
that act as a voltage divider network. These devices
have a typical output impedance of 0.2Ω. Active
output circuitry provides very sharp turn-on
characteristics, making these devices excellent
improved replacements for Zener diodes in many
applications.
The precise +/- 1% reference voltage tolerance of
the CP432/432A make it possible in many
applications to avoid the use of a variable resistor,
consequently saving cost and eliminating drift and
reliability problems associated with it.
VIN
+
Cin
CP432
VOUT
R1 +
Cout
R2
VOUT = (1+R1/R2)VREF
Precision Regulator
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Tel:886-3-3214525
Fax:886-3-3521052
Page 1 of 10
Email: [email protected]
Http: www.ceramate.com.tw
Rev 1.1 Jan. 19,2005
1 page  
CP432
Adjustable Precision Shunt Regulator
Typical Performance Characteristics
SMALL-SIGNAL VOLTAGE AMPLIFICATION vs. FREQUENCY
60
IKA=10mA
50 TA=25oC
40
30
20
15KΩ
9μF
8.25KΩ
Output
IKA 232Ω
+
-
GND
10 TEST CIRCUIT FOR VOLTAGE AMPLIFICATION
0
1K
10K 100K
f-Frequency-Hz
1M
10M
REFERENCE IMPEDANCE vs. FREQUENCY
100
TIKAA==2150omCA
10
1
1KΩ
50Ω
-
+
Output
I KA
GND
0.1
1K
10K 100K
f-Frequency-Hz
1M
TEST CIRCUIT FOR REFERENCE IMPEDANCE
10M
STABILITY BOUNDARY CONDITIONS†
100
A VKA=Vref
90 B VKA=5V
TA= 2 5 oC
80 C VKA=10V
D VKA=15V
70
B
S ta b l e
60
S ta b l e
50 A
40
C
30 D
20
10
0
0 .0 0 1
0 .0 1
0.1
1
CL-Load Capacitance-µF
10
The areas under the curves represent conditions that may cause the
device to oscillate. For curves B, C, and D, R2 and V+ were adjusted
to establish the initial VKA and IKA conditions with CL=0.VBATT and
CL were then adjusted to determine the ranges of stability.
150O
I KA
+
CL
VBATT
-
TEST CIRCUIT FOR CURVE A
R1=10KO
CL
R2
I KA
150O
+
- VBATT
TEST CIRCUIT FOR CURVE B, C, AND D
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Tel:886-3-3214525
Fax:886-3-3521052
Page 5 of 10
Email: [email protected]
Http: www.ceramate.com.tw
Rev 1.1 Jan. 19,2005
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet CP432.PDF ] | |
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