la6543 Sanyo Semiconductor Corporation, la6543 Datasheet

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la6543

Manufacturer Part Number
la6543
Description
4-channel Bridge Btl Driver For Cd-rom
Manufacturer
Sanyo Semiconductor Corporation
Datasheet

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The LA6543 is a 4-channel bridge (BTL) driver
developed for CD-ROM applications.
Features and Functions
• Integrated 4-channel power amplifier with bridge
• I
• Integrated level shift circuit
• Integrated muting circuit
• Integrated thermal shutdown circuit
• Divided output stage power supply (V
Maximum Ratings at Ta = 25 C
Operating Conditions at Ta = 25 C
Overview
Specifications
* V
Maximum supply voltage 1
Maximum supply voltage 2
Maximum input voltage
Mute pin voltage
Allowable power dissipation
Operating temperature
Storage temperature
Recommended operation voltage 1
Recommended operation voltage 2-1
Recommended operation voltage 2-2
Ordering number : EN5973
circuit (BTL) (two output stage power supply lines)
MUTE: Output OFF at Low, output ON at High.
MUTE1 is for channels 1 and 2, and MUTE2 for
channels 3 and 4.
CH3; V
CC
O
max: 1A
SANYO Electric Co., Ltd. Semiconductor Business Headquarters
V
S
1, 2
S
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
2: CH4)
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
Parameter
Parameter
V
V
MUTE
V
V
Pd max
Symbol
Symbol
CC
S
IN
Topr
Tstg
V
V
V
max
CC
max
S
S
max
2
S
max
1
1: CH1, CH2,
Input pins V
IC only
V
V
V
4-Channel Bridge (BTL) Driver for CD-ROM
S
S
S
2: CH4 output reference power supply
1, 2
1: CH1 to CH3
LA6543
IN
1 to 4
Conditions
Conditions
Package Dimensions
unit: mm
3219-QFP34HC
1.6
24
34
1
23
[LA6543]
13.2
10.0
4.8
4.0
0.8
Ratings
Ratings
6
18
N1798RM(KI)
–55 to +150
1.0
–20 to +75
Monolithic Linear IC
17
7
SANYO : QFP34HC
4 to 13
4 to 13
4 to 13
0.77
LA6543
0.2
14
14
13
13
x
x
2.45max
No. 5973-1/7
Unit
Unit
W
V
V
V
V
C
C
V
V
V

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la6543 Summary of contents

Page 1

... Ordering number : EN5973 Overview The LA6543 is a 4-channel bridge (BTL) driver developed for CD-ROM applications. Features and Functions • Integrated 4-channel power amplifier with bridge circuit (BTL) (two output stage power supply lines) • I max • Integrated level shift circuit • ...

Page 2

... Note 2: MUTE turns amplifier output ON at High and OFF at Low. (At Low, output impedance becomes high.) MUTE1 and MUTE2 operate independently on the respective channels. 1.0 IC Only 0.8 0.6 0.4 0.2 0 –20 LA6543 = 12V 5V 12V 25˚ Conditions 1 All outputs ON (MUTE1, MUTE2: High) 2 All outputs OFF (MUTE1, MUTE2: Low) ...

Page 3

... VG4 VG3 VG2 VG1 MUTE1 LA6543 21 20 Heat sink ...

Page 4

... REF MUTE2 MUTE1 33 23 MUTE LA6543 Equivalent circuit Output stage reference voltage (V SS Connect to Substrate (minimum potential CH1 non-inverted output (CH1+) CH1 inverted output (CH1-) CH2 non-inverted output (CH2+) CH2 inverted output (CH2-) CH3 non-inverted output (CH3+) ...

Page 5

... VG4 – + System Diagram (relationship between power supply and MUTE) (MUTE1/MUTE2) MUTE1 MUTE2 LA6543 MUTE1 MUTE2 Thermal shutdown MUTE1 MUTE2 CH1 (V O 1– CH2 (V O 3– CH3 (V O 5– CH4 (V O 7– – ...

Page 6

... VG2 Focus input VG1 Loading input Microprocessor 33 MUTE1 LA6543 Reference voltage Heat sink ...

Page 7

... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of December, 1998. Specifications and information herein are subject to change without notice. LA6543 and VG – ...

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