Ordering number : EN5973
LA6543
Monolithic Linear IC
LA6543
4-Channel Bridge (BTL) Driver for CD-ROM
Overview
The LA6543 is a 4-channel bridge (BTL) driver
developed for CD-ROM applications.
Package Dimensions
unit: mm
3219-QFP34HC
[LA6543]
1.6
13.2
10.0
23
24
Features and Functions
1.6
鈥?Integrated 4-channel power amplifier with bridge
circuit (BTL) (two output stage power supply lines)
鈥?I
O
max: 1A
鈥?Integrated level shift circuit
鈥?Integrated muting circuit
MUTE: Output OFF at Low, output ON at High.
MUTE1 is for channels 1 and 2, and MUTE2 for
channels 3 and 4.
鈥?Integrated thermal shutdown circuit
鈥?Divided output stage power supply (V
S
1: CH1, CH2,
CH3; V
S
2: CH4)
4.8
0.8
18
1.0
0.2
1.0
17
13.2
10.0
0.8
0.35
34
1
6
7
4.0
Specifications
Maximum Ratings
at Ta = 25
擄
C
Parameter
Maximum supply voltage 1
Maximum supply voltage 2
Maximum input voltage
Mute pin voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
Conditions
Ratings
14
Unit
V
V
V
V
W
擄C
擄C
V
CC
max
V
S
max
V
IN
max
V
MUTE
max
Pd max
Topr
Tstg
IC only
V
S
1, 2
Input pins V
IN
1 to 4
0.1
SANYO : QFP34HC
2.2
2.45max
14
13
13
0.77
鈥?0 to +75
鈥?5 to +150
Operating Conditions
at Ta = 25
擄
C
Parameter
Recommended operation voltage 1
Recommended operation voltage 2-1
Recommended operation voltage 2-2
Symbol
Conditions
Ratings
4 to 13
Unit
V
V
V
V
CC
V
S
1
V
S
2
V
S
1: CH1 to CH3
V
S
2: CH4 output reference power supply
4 to 13
4 to 13
* V
CC
鈮?/div>
V
S
1, 2
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.
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.
SANYO Electric Co., Ltd. Semiconductor Business Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
N1798RM(KI) No. 5973-1/7
0.8
11.6
8.4
1
2
3
4
5
6
7
