CP432
Adjustable Precision Shunt Regulator
ꢀTypical Performance Characteristics
SMALL-SIGNAL VOLTAGE AMPLIFICATION vs. FREQUENCY
60
IKA=10mA
Output
TA=25oC
IKA
50
Ω
Ω
232
15K
40
30
20
10
0
μ
9
F
-
+
-
Ω
8.25K
GND
TEST CIRCUIT FOR VOLTAGE AMPLIFICATION
10K
1K
100K
1M
10M
f-Frequency-Hz
REFERENCE IMPEDANCE vs. FREQUENCY
100
10
1
IKA=10mA
TA=25oC
Ω
1K
Output
I
KA
Ω
50
-
+
GND
TEST CIRCUIT FOR REFERENCE IMPEDANCE
0.1
1K
10K
100K
1M
10M
f-Frequency-Hz
STABILITY BOUNDARY CONDITIONS†
A VKA=Vref
150O
100
90
80
70
60
50
40
30
20
10
0
TA=25oC
I
KA
B VKA=5V
+
C VKA=10V
D VKA=15V
VBATT
CL
-
B
Stable
C
Stable
TEST CIRCUIT FOR CURVE A
A
D
I
KA
150O
VBATT
R1=10KO
CL
+
-
R2
0.001
0.01
0.1
1
10
CL-Load Capacitance-µF
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
TEST CIRCUIT FOR CURVE B, C, AND D
C
L were then adjusted to determine the ranges of stability.
* 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
Email: server@ceramate.com.tw
Http: www.ceramate.com.tw
Rev 1.1 Jan. 19,2005
Page 5 of 10
Fax:886-3-3521052
CERAMATE [ CERAMATE TECHNICAL ]
