SANYO LA6542M Datasheet
Ordering number : EN5717
LA6542M
Monolithic Linear IC
LA6542M
4-Channel Bridge (BTL) Driver for CD-ROM
Overview
The LA6542M is a 4-channel bridge (BTL) driver
developed for CD-ROM applications.
Functions
Package Dimensions
unit: mm
3204-MFP36SLF
[LA6542]
36 19
• 4-channel power amplifier with bridge circuit (BTL)
• IOmax: 1A
• Integrated muting circuit
7.9
9.2
(MUTE: Output OFF at Low, output ON at High.
MUTE1 is for channels 1 and 2, and MUTE2 for
channels 3 and 4.)
• Slew rate 0.5 V/µs
• Integrated thermal shutdown circuit
1
15.3
18
SANYO : MFP36SLF
0.15
2.15
2.5max
0.1
0.850.35 0.8
0.65
Specifications
Maximum Ratings at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage 1 14 V
Maximum supply voltage 2 14 V
Maximum input voltage Input pins 13 V
Mute pin voltage 13 V
Allowable power dissipation Pd max IC only 0.9 W
Operating temperature Topr °C
Storage temperature Tstg °C
VCCmax
VSmax
VINmax
V
MUTE
VS1, 2
VIN1 to 4
max
–20 to +75
–55 to +150
10.5
Operating Conditions at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Recommended operation voltage 1 4 to 13 V
Recommended operation voltage 2-1 4 to 13 V
Recommended operation voltage 2-2 4 to 13 V
*V
≥ VS1, 2
CC
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.
V
CC
VS1
VS2
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. 5717-1/7
LA6542M
Electrical Characteristics at V
Parameter
VCC no-load current drain
V
1 no-load current drain
S
V
2 no-load current drain
S
Output offset voltage
Input voltage range Input voltage range for 0.5 5 V
Output voltage (source) Vsource Plus and minus outputs at high level 4.4 4.7 V
(sink) Vsink Plus and minus outputs at low level 0.3 0.6 V
Closed circuit voltage gain VG Voltage gain between BTL amplifiers 6 dB
Slew rate SR (Note 1) 0.5 V/µs
Mute ON voltage MUTE1, MUTE2 voltage when output is ON (Note 2) 1.5 2 V
Mute ON current MUTE1, MUTE2 current when output is ON (Note 2) 6 10 µA
Symbol
VOF1 to 4
= 12V, VS = 5V, Ta = 25°C
CC
ICC1
ICC2
IS1-1
I
IS2-1
IS2-2
V
I
MUTE
All outputs ON (MUTE1, MUTE2: High) 5 10 20 mA
All outputs OFF (MUTE1, MUTE2: Low) 5 10 mA
CH1, 2 ON (MUTE1, MUTE2: High) 10 30 mA
CH1, 2 OFF (MUTE1, MUTE2: Low) 4 mA
1-2
S
CH3, 4 ON (MUTE1, MUTE2: High) 10 30 mA
CH3, 4 OFF (MUTE1, MUTE2: Low) 4 mA
Potential difference between plus and minus outputs
for CH1 to CH4
V
IN
IO = 700 mA
= 700 mA
I
O
MUTE
Conditions
VIN1 to VIN4
Ratings
min typ max
–50 50 mV
Unit
Note 1: Guaranteed design value
Note 2: MUTE works on all channels. At High, amplifier output is ON and at Low amplifier output is OFF (output impedance
becomes HI).
1.2
1.0
IC only
0.9
0.8
0.6
0.4
0.2
Allowable power dissipation, Pd max – W
0
–20 0 20 40 60 80 100
Pd max – Ta
0.54
Ambient temperature, Ta – ˚C
No. 5717-2/7
Pin Assignment
LA6542M
RF
RF
V
OUT
V
IN
V
IN
MUTE1
V
IN
VG1
V
IN
VG2
V
IN
1
2
3
–
4
+
5
6
7
1
8
9
2
36
35
34
33
32
31
30
29
28
RF
RF
V
SS
VSS OUT
1
V
O
2
V
O
1
V
S
3
V
O
4
V
O
LA6542M
10
11
3
27
26
5
V
O
6
V
O
VG3
V
IN
VG4
MUTE2
V
CC
RF
RF
12
13
4
14
15
16
17
18
25
24
23
22
21
20
19
Top view
V
V
V
V
V
RF
RF
2
S
7
O
8
O
REF
REF
A11265
OUT
IN
No. 5717-3/7
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