KA2142 [FAIRCHILD]
Vertical Deflection Output Circuit; 垂直偏转输出电路
| 型号： | KA2142 |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Vertical Deflection Output Circuit |
| 文件： | 总12页 (文件大小：65K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
KA2142C
Vertical Deflection Output Circuit
Features
Description
• High output current
• Pump - up circuit
• Low dissipation
The KA2142C is a monolithic linear IC designed for color
TV and monitor vertical deflection output. It is intended for
direct drive of the deflection coils with a high efficiency.
• Minimum number of external parts required
• Direct drive to the deflectin coils
• Internal thermal shutdown circuit
10-SIP H/S
Applications
• Power Amplifier
• Thermal Protection
• Flyback Generator
Internal Block Diagram
Vcc(L)
+
+
Vcc(H)
2
9
4
FLYBACK
GENERATOR
Sawtooth IN
1
+
DRIVE
STAGE
OUTPUT
6
PRE
AMP
-
STAGE
Vref
10
THERMAL
SHUTDOWN
D.Y
5
+
+
Rev. 1.0.0
©2001 Fairchild Semiconductor Corporation
KA2142C
Pin Assignments
C
KA2142A
1
2
3
4
5
6
7
Pin Number
Symbol
Vin ( - )
Vcc(L)
-
I/O
Pin Function Descrition
1
2
I
I
Inverting Input
Supply Voltage
N.C.
3
-
4
F.G
O
-
Flyback Generator
Ground
5
GND
6
V
O
-
Output
O
7
-
N.C.
8
-
-
N.C.
9
Vcc(H)
Vin ( + )
I
Output Stage Supply Voltage
Non-Inverting Input
10
I
2
KA2142C
Pin Definitions
Pin Number
Pin Name
Waveform
Equivalent Circuit
vcc
1
2
Inverting Input
Voltage Supply
1
DC
-
vCC
4
5
Flyback Generator
Ground
4
DC
-
vCC
6
Output Voltage
6
2Vs
9
Output Stage Voltage Supply
-
Vs
vcc
10
Non-Inverting Input
DC
10
3
KA2142C
o
Absolute Maximum Rating ( Ta = 25 C )
Parameter
Supply Voltage
Symbol
Value
Unit
V
V
35
cc(L)
Flyback Peak Voltage
Flyback Generator Voltage
Input Voltage
V6, V9
V6
70
V
35
V cc(L) - 0.5
3
V
V1, V10
V
Peak - to - Peak Output Current*
Io
A
(p-p)
Peak - to - Peak Flyback Current
( f = 50 or 60Hz, Tfb ≤ 1.5mS )
I4
3
A
(p-p)
Total Power Dissipation ( Ta = 25oC )
P
15
W
oC
oC
D
Storage Temperature Range
T
stg
-40 ~ +150
-25 ~ +70
Operating Ambient Temperature
T
opt
* Maximum output peak to peak current in TV or Monitor set.
Thermal Data
Parameter
Symbol
Value
Unit
Thermal Resistance Between Junction and Case
Thermal Resistance Between Junction and Ambient
Thermal Shut down Temperature
R
12
60
oC/W
oC/W
oC
th ( j - c )
R
th ( j - a)
T
tsd
150
4
KA2142C
Electrical Characteristic
(Refer to the test circuit ,V cc(L)= 35V,unless otherwise specified)
Parameter
Supply Voltage
Symbol
Conditions
Min.
Typ.
25
-
Max.
35
70
16
36
1
Unit
V
V
15
15
-
CC(L)
CC(H)
CC(L)
-
V
V
I
6
mA
mA
V
Supply Quiescent Current
Pin4 Saturation Voltage to Gnd
Saturation Voltage to supply
-
I
-
22
0.5
1.6
1.3
1
CC(H)
V
I4 = 20mA
-
4SAT
I6 = -1.2A
I6 = -0.7A
I6 = 1.2A
I6 = 0.7A
-
2.2
1.8
1.4
1
V
V
HSAT
-
V
-
V
Saturation Voltage to ground
V
LSAT
-
0.7
V
R1=5.6K,Rfb=45K
V1=V10=2V
Output Center Voltage
Input Bias Current
V
-
-
18
-
V
MID
I
V1 = 1V, V10 = 2V
-0.1
-1
µA
BIAS
5
KA2142C
Typical Performance Characteristic
1
3
2
0.8
0.6
0.4
1
0.2
0
0
60
80 100
0
0
40
10
20
30
40
20
VS
I4(mA)
Figure 2. I4-V4L
Figure 1. Vs-V4L
2.5
2
1.5
1
2
1.5
1
0.5
0.5
0
0
0
0.4
1.2 1.6
2
0.8
0
0.4
1.2 1.6
2
0.8
Isink(A)
Isource(A)
Figure 3. Isink-V6H
Figure 4. Isource-V6L
25
20
15
10
5
0
0
30
40
20
V
Figure 5. Vs-I2, I9
6
KA2142C
DC Test Circuit
KA2142C
1
2
3
4
5
6
7
8
9
10
V6
V1
12
V2
V4
19
V9
SW1
V1
+
V10
+
C2
C3
22p
22p
R1
C1
22p
12KΩ
SW2
SW3
R4
10KΩ
SW4
R5
0.1KΩ
R6
0.1KΩ
R3
39KΩ
R7
10KΩ
V10
R2
5.6K
Ω
INPUT VOLTAGE (V)
SWITCH STATE
ITEM
V1
V10
Vin1
Vin2
SW1
OFF
OFF
OFF
OFF
OFF
SW2
SW3
OFF
OFF
OFF
OFF
OFF
SW4
I2, I9
I1
-
-
-
-
-
-
-
2
-
ON
ON
1
3
3
1
2
2
2
2
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
V4L
V6L
V6H
-
-
-
7
KA2142C
AC Test Circuit
IN4001
VS
+
+
1000uF
0.1uF
220uF
PIN9 PIN4
PIN2
Vref
PIN10
KA2142C
PIN6
Output
6.8KΩ
PIN1
D.Y
GND
150n
220n
Vin
1.5Ω
300Ω
3.9KΩ
3.9KΩ
+
+
2200uF
10uF
3.3KΩ
1Ω
(7.5V)
RA=2.7KΩ
VCC
VA=7.5V
4
8
7
8
6
2
1
2
KA551
3
KA358
+
1
10uF(60Hz)
5uF(12Hz
4
Typical Application Circuit
Vcc=25V
+
1000µF
R2
IN4001
1.2Ω
1W
+
220µF
35V
0.01
µ
2
4
9
Vref
0.1µF
10
1
VOUT
KA2142C
6
15K
Vin
0.15µF
1.5Ω
330Ω
2W
V.D Y
5
0.22µF
470pF
+
3.9KΩ
+
3.9KΩ
2200µF
22µF
6.8KΩ
0.9Ω
2W
0.33µF
8
KA2142C
Mechanical Dimensions
Package
Dimensions in millimeters
10-SIP H/S
3.25 ±0.20
0.128 ±0.008
#1
#10
1.00 ±0.20
0.039 ±0.008
8.90 ±0.20
7.00 ±0.30
0.350 ±0.008
0.276 ±0.012
13.65 ±0.30
0.537 ±0.012
16.80
0.661
MAX
9
KA2142C
Ordering Information
Product Number
Package
10-SIP H/S
Operating Temperature
KA2142C
-20oC ~ +70 oC
10
KA2142C
11
KA2142C
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.
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5/3/01 0.0m 001
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2001 Fairchild Semiconductor Corporation
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