KA33VBU [FAIRCHILD]
Voltage Stabilizer; 稳压器
| 型号： | KA33VBU |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Voltage Stabilizer |
| 文件： | 总8页 (文件大小：92K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
KA33V
Voltage Stabilizer
Features
Description
• Low Temperature Coefficient
• Low Dynamic Resistance
The KA33V is a monolithic integrated voltage stabilizer
especially designed as voltage supplier for electronic tuners.
• Typical Reference Voltage of 33V
TO-92
1
1. Anode 2. Cathode
Schematic Diagram
●
●
●
2 Cathode
R4
D1
D2
D3
D4
D5
●
Q3
R3
●
Q2
●
R2
R1
1 Anode
Rev. 1.0.1
©2001 Fairchild Semiconductor Corporation
KA33V
Absolute Maximum Ratings (T
A= 25°C)
Parameter
Symbol
Value
10
Unit
mA
mW
°C
Zener Current
I
Z
Power Dissipation (T = 75°C)
P
200
A
D
Operating Ambient Temperature Range
Storage Temperature Range
T
OPR
-20 ~ 75
-40 ~ 125
T
STG
°C
Electrical Characteristics (T = 25°C)
A
Parameter
Stabilized Voltage
Symbol
Conditions
I = 5mA
Min.
Typ. Max. Unit
V
31
35
V
mV/°C
-
Z
Z
I = 5mA
Z
Stabilized Voltage-Temperature Drift
Dynamic Resistance
∆V /∆T
-1
-
0
1
Z
T = -20 to 75°C
A
R
Z
I = 5mA, f = 1KHz
Z
10
25
2
KA33V
Measuring Circuits
IZ = 5mA
A
●
2
RB
EB
v
Volt Meter
KA33V
1
Figure 1. Measuring Circuit for Stabilized Voltage V
Z
Iz
10
Iz
IAC =
+
●
●
●
●
A
μ
50
F
100
RB
2
VV2
C
μ
f = 1KHz
0.1
F
KA33V
VV1
~
EB
1
●
●
●
Fig. 3
IZ
Vz
0.5mA
VV1
0.5mA
rZ
=
5mA
W1
Figure 2. Measuring Circuit for Dynamic Resistance
3
KA33V
Typical Application
A c h
●
B c h
●
Y c h
●
Z c h
●
●
R i
2
C
C h a n n e l
s e ttin g
K A 3 3 V
V i
v a ria b le
re s is to r
Ω
1 5 K
Ω
1 5 K Ω
1 5 K
1
c
●
●
●
●
●
＊
to tu n in g d io d e s (v a ra c to r) in c a s e o f Y c h o n
c
1) UHF Tuner
●
●
●
●
T R 1
●
●
●
●
●
●
●
T R 2
D 5
D 3
D 4
D 1
D 2
●
●
●
●
T R 1 : R F A M P : K S C 13 9 3
K S C 10 7 0 (U n de r de ve lop m e nt)
T R 2 : O S C : S K C 1 73 0
D 1 - D 4 : 1 S 2 2 0 D 5 : M IX E R : 1 S S 16
A F C
te rm ina l
2) VHF Tuner
●
●
●
●
TR1
●
●
●
●
●
●
●
TR3
D3
D4
D1
D2
TR2
●
●
●
●
TR 1 : R M AM P : KSC 1393
TR 2 : M IXER
TR 3 : O SC
: KSC 1394
: KSC 1730
AFC term inal
D 1, D 4 : 1S2209
D 2, D 3 : 1S2207
Low/High Channel
Switching term inal.
4
KA33V
Power-temperature Derating Durve Typical Characteristic Curves
(T = 25°C)
A
Figure7. Allowable Dissipation vs.
Figure8. Dynamic Resistance vs.
Zener Current
Amblent Temperature
Figure9. Stabilized Voltage Temperature Drift vs.
Zener Current
Figure10. Stabilized Voliage Variation vs.
Time
Figure11. Stabilized Voltage Variation & Supply
Voltage Variation vs. Zener Current
5
KA33V
Mechanical Dimensions
Package
Dimensions in millimeters
TO-92
6
KA33V
Ordering Information
Product Number
Package
TO-92
Operating Temperature
KA33V
7
KA33V
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
9/25/01 0.0m 001
Stock#DSxxxxxxxx
2001 Fairchild Semiconductor Corporation
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