tda7473 STMicroelectronics, tda7473 Datasheet

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tda7473

Manufacturer Part Number
tda7473
Description
Quad Btl Driver With Voltage Regulator
Manufacturer
STMicroelectronics
Datasheet

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TDA7473
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tda7473A
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tda7473A
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tda7473A-013TR
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tda7473D
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5 510
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tda7473D
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infineon
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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
Figure 1: Quad BTL Power Bridges + Multifunction Regulators.
June 1998
PASS
SHORT CIRCUIT PROTECTION
200mA) WITH SHORT CIRCUIT PROTEC-
TION
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
ADJUSTABLE REGULATOR (2.0 TO 3.6V @
R1
1K
R2
1K
TRANSISTOR
REG
ADJ
+
QUAD BTL DRIVER WITH VOLTAGE REGULATOR
VSUP
REFERENCE
VBG
VBG
OC
WITH
DRIV
VBG
5V
FOLD-BACK
ST_BY
IN2
IN3
IN4
COMM
REF
IN1
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.
+
+
+
+
-
-
-
-
VS1
VS2
VS/2
VS/2
VS/2
VS/2
GND GND GND GND
VS3
+
+
+
+
+
+
+
+
-
-
-
-
-
-
-
-
VS4
SO28 (24+2+2)
OUT 1+
OUT 1-
OUT 2+
OUT 2-
OUT 3+
OUT 3-
OUT 4+
OUT 4-
D95AU223B
TDA7473
M
M
ACTUATOR
ACTUATOR
TRACKING
SPINDLE
SLEDGE
MOTOR
MOTOR
FOCUS
1/5

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tda7473 Summary of contents

Page 1

... IN2 IN1 VS1 VS2 VS3 VS4 - + + VS VS VS/2 VBG - + - - + + VS ST_BY IN3 IN4 COMM GND GND GND GND REF TDA7473 SO28 (24+2+2) OUT 1+ SPINDLE M MOTOR OUT 1- OUT 2+ SLEDGE M MOTOR OUT 2- OUT 3+ TRACKING ACTUATOR OUT 3- OUT 4+ FOCUS ACTUATOR OUT 4- D95AU223B 1/5 ...

Page 2

... TDA7473 PIN CONNECTION (Top view) VSUP OUT1- VS1 OUT1+ OC GND GND ADJ OUT2+ VS2 OUT2- ST_BY REG PIN FUNCTIONS N. Pin Name regulated input 2 VSUP Positive power supply (battery) 3 OUT1- 1.st channel negative output 4 VS1 1.st channel power supply 5 OUT1+ 1.st channel positive output ...

Page 3

... 0.6A 5V 0.6A S out Active --> St-By 0.65 V St-By --> Active I = 0.2A out I = 0.2A out I = 20mA DRIV SUP V = 12V SUP V = 15V SUP R1 R1 TDA7473 Value Unit - 150 C Value Unit 50 (*) C/W 17 C/W Min. Typ. Max. Unit 1 1.8 2.5 mA 1.3 2 ...

Page 4

... TDA7473 SO28 PACKAGE MECHANICAL DATA DIM. MIN. TYP 0.1 b 0. 1.27 e3 16.51 F 7.4 L 0.4 S 4/5 mm MAX. MIN. 2.65 0.3 0.004 0.49 0.014 0.32 0.009 0.5 45 (typ.) 18.1 0.697 10.65 0.394 7.6 0.291 1.27 0.016 8 (max.) inch TYP. MAX. 0.104 0.012 0.019 0.013 0.020 0.713 0.419 0.050 0.65 0.299 0.050 ...

Page 5

... 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. TDA7473 5/5 ...

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