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CYT432

型号：

CYT432

描述：

- 12号的铝制车身绘（ RAL 7032 ）

品牌：

ETC[ ETC ]

页数：

9 页

PDF大小：

168 K

下载PDF手册
CYT 432  
Adjustable Precision Shunt Regulator  
General Description  
Features  
The CYT432 is a programmable shunt voltage  
reference with guaranteed temperature stability  
over the entire temperature range of operation.  
The output voltage may be set to any  
value between 1.24V and 12V with two external  
resistors. This device has a typical output  
impedance of 0.2Ω. Active output circuitry  
provides a very sharp turn on characteristic,  
making this device excellent replacement for  
■
■
■
■
■
■
Adjustable output voltage V0 =1.24V to 12V.  
Wide operating current range 0.06 to 100mA.  
Low dynamic output impedance 0.25Ω(Typ.)  
Voltage Reference Tolerance: ±0.5%.  
ESD rating is 4KV(Per MIL-STD-883D).  
Available in Lead Free Packages.  
Applications  
■
■
■
■
■
■
Adjustable Supplies  
Battery Operated Computers  
Computer Disk Drives  
Linear Regulators  
Zener diodes in many applications.  
The CYT432 is characterized for operation  
from 0°C to 105°C.  
Instrumentation  
Switching Power Supplies  
TO-92 Package  
SOT-23 Package  
SOP-8 Package SOT-89 Package  
ShenZhen CYT IC Design CO ,Ltd  
1
CYT 432  
Pin Configuration  
1. Cathode  
2. Ref  
1. Cathode  
2. Anode  
3. Ref  
3. Anode  
SOT-23  
TO-92  
1. Cathode  
2. Anode  
3. Anode  
4. NC  
1.Ref  
2.Anode  
3.Cathode  
5. NC  
6. Anode  
7. Anode  
8. Ref  
SOT-89  
SOP8  
Application Diagram  
ShenZhen CYT IC Design CO ,Ltd  
2
CYT 432  
Marking Information  
Production  
Week Code  
Lead-Free  
Package  
Package Marking Production Year Code  
Starting with S,a bar on top of S is for production  
year 2001,and underlined S is for year 2002.The  
next character is marked on top for 2003, and  
underlined for 2004.The naming pattem continues  
with consecutive characters for later years.  
Lead-free package is  
SOT-23-3  
SC59-3L  
A-Z:1-26  
a-z:27-52  
indicated by a dot on  
top of the week code.  
CYT432  
CYT432  
YYWW  
CYT432  
YYWW  
CYT432  
YYWW  
WW is the week of  
SOP-8  
SOT-89  
TO-92  
production.  
26 Lead-free package is  
YY is the year of production. 04 means the  
product is manufactured in year of 2004.  
means the product indicated by LF after  
is manufactured in YYWW.  
the 26th week.  
Absolute Maximum Ratings  
Symbol  
VKA  
Parameter  
Value  
12  
Units  
V
Cathode to Anode Voltage  
Continuous Cathode Current  
Reference Current  
I KA  
150  
mA  
mA  
°C  
I REF  
10  
TJ  
Operating Junction Temperature Range  
Storage Temperature Range  
150  
TSTG  
-45 to 150  
220 (TO-92)  
230 (SOT-23)  
150 (SOP-8)  
120 (SOT-89)  
260  
°C  
θJA  
Thermal Resistance  
°C/W  
°C  
TLEAD  
Lead Temperature (Soldering) 10 seconds  
ShenZhen CYT IC Design CO ,Ltd  
3
CYT 432  
Electrical Characteristics  
Parameter  
Symbol  
Test Conditions  
Min Typ Max Unit  
1246 1250 1256  
1.250V±0.5%  
1.240V±0.5%  
1.240V±1.0%  
1.240V±1.5%  
1.240V±2.0%  
1234 1240 1246  
Reference  
Voltage  
Test circuit #1  
1228 1240 1252  
1221 1240 1259  
1215 1240 1265  
VREF  
mV  
VKA=VREF,IKA=10mA  
Test circuit #1  
Deviation of reference voltage over  
full temperature range  
VI(DEV) VKA=VREF,IKA=10mA  
TA=0°C to 105°C  
--  
--  
--  
10  
25  
mV  
Ratio of change in reference  
voltage to the change in cathode  
volage  
Test circuit #2  
△VREF  
IKA=10mA,  
-1.0  
0.15  
-2.7 MV/V  
△VKA  
△VKA=12V to VREF  
Test circuit #2  
Reference current  
IREF  
IKA=10mA,  
R1=10Kꢀ, R2=∞,  
Test circuit #2  
2
uA  
uA  
Deviation of Reference current over  
full temperature range  
IKA=10mA, R1=10Kꢀ,  
R2=∞, TA=0°C to  
105°C  
II(DEV)  
--  
0.10 0.50  
Minimum cathode current for  
regulation  
Test circuit #1  
IMIN  
IOFF  
--  
--  
60  
100  
0.8  
uA  
uA  
VKA=VREF  
Off-state cathode current  
VKA=12V, VREF=0  
Test circuit #1  
0.04  
Dynamic impedance  
ZKA  
IKA=100uA to 80mA,  
VKA=VREF, f ≤ 1KHz  
--  
0.25  
1
ꢀ
ShenZhen CYT IC Design CO ,Ltd  
4
CYT 432  
Typical Performance Characteristics  
ShenZhen CYT IC Design CO ,Ltd  
5
CYT 432  
The areas under the curves represent conditions that may cause the device to oscillate. For VKA =  
2V and 3V curves, R2 and VBAT were adjusted to establish the initial VKA and IK conditions with CL = 0.  
VBAT and CL then were adjusted to determine the ranges of stability. As the graph suggested, CYT432  
is unconditional stable with IK from 0 to 100mA and with CL from 0.001uF to 1u  
ShenZhen CYT IC Design CO ,Ltd  
6
CYT 432  
Test Circuits  
Block Diagram  
Symbol Diagram  
ShenZhen CYT IC Design CO ,Ltd  
7
CYT 432  
OUTLINE DRAWING SC59-3L (SOT-23-3L)  
DIMENSIONS  
INCHES  
MM  
DIMN  
A
A1  
B
MIN  
MAX  
0.043  
0.005  
0.020  
0.008  
0.122  
0.122  
0.067  
MIN  
0.90  
0.01  
0.30  
0.09  
2.80  
2.50  
1.50  
MAX  
1.10  
0.13  
0.50  
0.20  
3.10  
3.10  
1.70  
0.035  
0.0004  
0.012  
0.004  
0.110  
0.098  
0.059  
C
D
H
E
0.037REF  
0.075REF  
0.95REF  
1.90REF  
e
e1  
L1  
L
0.008  
0.022  
0.031  
10°C  
0.20  
0.55  
0.80  
10°C  
0.014  
0°C  
0.35  
0°C  
Q
OUTLINE DRAWING TO-92  
DIMENSIONS  
INCHES  
MM  
DIMN  
MIN  
MAX  
0.205  
0.210  
0.610  
0.021  
0.055  
0.105  
0.105  
0.165  
MIN  
MAX  
5.207  
5.334  
15.50  
0.533  
1.397  
2.667  
2.667  
4.191  
0.175  
0.170  
0.500  
0.016  
0.045  
0.095  
0.080  
0.125  
4.445  
4.318  
12.70  
0.407  
1.143  
2.413  
2.032  
3.175  
A
B
E
F
G
H
J
K
ShenZhen CYT IC Design CO ,Ltd  
8
CYT 432  
OUTLINE DRAWING SOP-8  
DIMENSIONS  
INCHES  
MIN MAX  
MM  
DIMN  
MIN  
0.35  
0.10  
0.33  
MAX  
1.75  
0.25  
0.51  
0.0532 0.0688  
0.0040 0.0098  
0.0130 0.0200  
0.050BSC  
A
A1  
B
B1  
C
D
H
E
1.27BSC  
0.0075 0.0098  
0.1890 0.1968  
0.2284 0.2440  
0.1497 0.1574  
0.19  
0.25  
5.00  
6.20  
4.00  
4.80  
5.80  
3.80  
OUTLINE DRAWING SOT-89  
DIMENSIONS  
INCHES  
MM  
DIMN  
MIN  
0.173  
0.159  
0.067  
0.051  
0.094  
0.035  
MAX  
0.181  
0.167  
0.075  
0.059  
0.102  
0.047  
MIN  
MAX  
4.600  
4.250  
1.900  
1.500  
2.600  
1.200  
4.400  
4.050  
1.700  
1.300  
2.400  
0.890  
A
B
C
D
E
F
G
H
I
0.118REF  
0.059REF  
3.00REF  
1.50REF  
0.016  
0.020  
0.063  
0.016  
0.400  
0.520  
1.600  
0.410  
0.055  
0.014  
1.400  
0.350  
J
K
L
M
10°TYP  
0.028REF  
10°TYP  
0.70REF  
ShenZhen CYT IC Design CO ,Ltd  
9
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