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PDF TDA7473 Data sheet ( Hoja de datos )
| Número de pieza | TDA7473 | |
| Descripción | QUAD BTL DRIVER WITH VOLTAGE REGULATOR | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TDA7473 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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® TDA7473
QUAD BTL DRIVER WITH VOLTAGE REGULATOR
4 BUILT-IN POWER BRIDGES (4 x 0.6A)
NO EXTERNAL COMPONENTS
SINGLE POWER SUPPLY
WIDE SUPPLY VOLTAGE RANGE (6 TO 15V)
5V REGULATOR DRIVER FOR EXTERNAL
PASS TRANSISTOR WITH FOLD-BACK
SHORT CIRCUIT PROTECTION
ADJUSTABLE REGULATOR (2.0 TO 3.6V @
200mA) WITH SHORT CIRCUIT PROTEC-
TION
SO28 (24+2+2)
DESCRIPTION
This device is a quad power driver circuit in BTL
configuration, intended for use as a power driver
for servo systems with a single supply.
It’s specially dedicated to compact disc players
and it’s capable of driving focus & tracking actua-
tors sledge & spindle motors.
The regulators are mainly used to have a 5V sup-
ply for the power part and a lower programmable
voltage for the logic circuits.
Figure 1: Quad BTL Power Bridges + Multifunction Regulators.
+
VSUP
OC DRIV 5V
IN2 IN1 VS1 VS2 VS3 VS4
VBG
-
+
+ VS/2
-+
-
OUT 1+
M SPINDLE
MOTOR
OUT 1-
REG
R1
1K
ADJ
R2
1K
VBG
REFERENCE
VBG
-
+
+ VS/2
-+
-
-
+
+ VS/2
-+
-
OUT 2+
M
SLEDGE
MOTOR
OUT 2-
OUT 3+
TRACKING
ACTUATOR
OUT 3-
June 1998
+
-
ST_BY IN3 IN4 COMM
REF
VS/2
-
+
+
-
OUT 4+
FOCUS
ACTUATOR
OUT 4-
GND GND GND GND
D95AU223B
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1 page  
TDA7473
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
© 1998 STMicroelectronics – Printed in Italy – All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands -
Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
5/5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet TDA7473.PDF ] | |
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