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TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA8445K
POWER AMPLIFIER FOR DRIVING A DEFLECTION CIRCUIT OF
A COLOR TELEVISION
The TA8445K is a power amplifier for driving a deflection circuit
of a middle and large screen size color television.
The TA8445K combines the vertical output circuit and the
Ramp-generator in a 12-pin shrink DIP plastic package.
The TA8445K requires only vertical deflection positive pulse for
vertical operation.
FEATURES
l Large output current : 2.2Ap-p (MAX.)
l Built-in Ramp-generator circuit
l Built-in V.Driver circuit
l 50 / 60Hz sw circuit
l Small power dissipation with a pump-up circuit
l Vertical output circuit
l Small number external parts
BLOCK DIAGRAM
Weight: 3.2g(Typ.)
TA8445K
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TERMINAL INTERFACE
TA8445K
MAXIMUM RATINGS
CHARACTERISTIC SYMBOL RATING UNIT
V.Driver Power Supply VCC 15 V
Pump-up Power Supply Voltage VCC 30 V
Vertical Output Supply Voltage VCC 60 V
Power Dissipation P
Operating Temperature T
Storage Temperature T
Note: Using an infinite heat sink.
(Ta = 25°C)
12.5 (Note) W
D max
−20 ~ 85 °C
opr
−55 ~ 150 °C
stg
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TA8445K
RECOMMENDED OPERATING CONDITION
CHARACTERISTIC SYMBOL MIN TYP. MAX UNIT
V.Driver Supply Voltage V
Pump-up Supply Voltage V
Deflection Output Current I
8.1 9.0 9.9 V
CC1
— 24 29 V
CC2
— — 2.2 A
11p-p
(Ta = 25°C)
p-p
ELECTRICAL CHARACTERISTICS
CHARACTERISTIC SYMBOL
V.Driver Supply Current I
Vertical Triger Threshold Voltage V2 — (Note 2) — — 1.0 V
Vertical Amplitude Cont. Voltage (1) V
Vertical Amplitude Cont. Voltage (2) V — (Note 11) 0.75 1.25 1.75 V
Ramp-signal Maximum Voltage V5 — (Note 4) 3.5 4.8 6.0 V
Ramp-signal Maximum Amplitude V
Output Triger Satulation Voltage (1) V
Output Triger Satulation Voltage (2) V
Pump-up Triger Satulation Voltage (1) V
Pump-up Triger Satulation Voltage (2) V
Idling Current Ib — (Note 9) — 26 — mA
Vertical Output Center Voltage V
(Ta = 25°C, V
TEST
CIR-
CUIT
— (Note 1) 2.0 5.0 12 mA
CC1
60
3
50
3
5p-p
S11−10
S12−11
S7−8
S8−10
CENTER
— (Note 3) 1.0 1.5 2.0 V
— (Note 4) 3.5 4.5 5.5 V
— (Note 5) 0.3 0.5 1.0 V
— (Note 6) 1.0 1.8 3.6 V
— (Note 7) 1.0 2.0 3.0 V
— (Note 8) 0.2 0.8 1.6 V
— (Note 10) 8.0 12.0 14.0 V
= 9V, V
CC1
TEST CONDITION MIN TYP. MAX UNIT
CC2
= 24V)
p-p
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NOTE
1 ON A OFF A C A ON 1
2 ON B OFF A C A ON 5
3 ON A OFF A C A ON 3
4 ON A OFF A C A ON 5
5 ON B OFF B C D ON 11
6 OFF A OFF C C B ON 11 − 12
7 OFF A OFF A B C OFF 7 − 8
8 OFF A OFF A A A OFF 8
9 ON A OFF A C A ON 12
10 ON A OFF A C A ON 11
11 ON A ON A C A ON 3
TEST CIRCUIT
SW MODE
1 2 4 6 8 11 12
TERMINAL
TA8445K
TEST
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APPLICATION CIRCUIT
TA8445K
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PACKAGE DIMENSIONS
TA8445K
Weight: 3.2g (Typ.)
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TA8445K
A
RESTRICTIONS ON PRODUCT USE
· TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc..
· The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this
document shall be made at the customer’s own risk.
· The products described in this document are subject to the foreign exchange and foreign trade laws.
· The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other
rights of the third parties which may result from its use. No license is granted by implication or otherwise under
any intellectual property or other rights of TOSHIBA CORPORATION or others.
000707EB
· The information contained herein is subject to change without notice.
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This datasheet has been download from:
www.datasheetcatalog.com
Datasheets for electronics components.
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