4-channel Bridge Driver
for Compact Discs
Functions and Features
.
4-channel bridge (BTL) power amplifier.
.
I
O
max. 700 mA.
.
With mute circuit
(Affects all amplifier outputs, Amp 1 to Amp 8).
(When the mute voltage is low, the outputs turn off;
when the mute voltage is high, the outputs turn on).
.
5.0 V regulator built in (Uses external PNP transistor).
.
Reset circuit built in (The reset output delay time can be
adjusted through an external capacitor).
Package Dimensions
unit : mm
3196-DIP30SLF
[LA6541D]
SANYO : DIP30SLF
Specifications
Maximum Ratings
at Ta = 25C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
CC
max
14
V
Maximum input voltage
V
IN
13
V
Mute pin voltage
V
Mute
13
V
Allowable power dissipation
Pd max
When using standard board
(material: glass epoxy)
2.5
W
Operating temperature
Topr
20 to +75
C
Storage temperature
Tstg
55 to +150
C
Recommended Operating Conditions
at Ta = 25C
Parameter
Symbol
Conditions
Ratings
Unit
Operating voltage
V
CC
5.6 to 13
V
Reset output source current
I
ORH
0 to 200
A
Reset output sink current
I
ORL
0 to 2
mA
Ordering number: EN 5591
Monolithic Linear IC
LA6541D
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
D2096HA (II) No.5591- 1/7
Electrical Characteristics
at Ta = 25C, V
CC
= 8.0 V, V
REF
= 4 V
Parameter
Symbol
Conditions
min
typ
max
Unit
No-load current drain
I
CC
1
When all amplifier outputs are on (Mute high)
20
40
mA
I
CC
2
When all amplifier outputs are off (Mute low)
15
35
mA
Output offset voltage
V
OF
1
Amplifier 1 to 2 (V
O
1 to V
O
2),
Amplifier 3 to 4 (V
O
3 to V
O
4)
50
50
mV
V
OF
2
Amplifier 5 to 6 (V
O
5 to V
O
6),
Amplifier 7 to 8 (V
O
7 to V
O
8)
50
50
mV
Buffer amplifier input voltage
range
V
BIN
1.5
V
CC
-1.5
V
Input voltage range
V
IN
1.0
V
CC
-1.5
V
Output source voltage
V
O
1
Note 1, when R
L
= 8.0
5.0
5.6
V
Output sink voltage
V
O
2
Note 2, when R
L
= 8.0
1.8
2.4
V
Closed-circuit voltage gain
VG
Between bridge amplifiers
9
dB
Slew rate
SR
0.15
V/s
Mute on voltage
V
Mute
Note 3
1.2
V
[Power Supply] (with 2SK632K connected externally)
Output voltage
V
OUT
1
I
O
= 200 mA
4.75
5.0
5.25
V
Line regulation
V
OLN
1
5.6
%
V
IN
1
%
12 V
20
100
mV
Load regulation
V
OLD
1
5 mA
%
I
O
%
200 mA
50
150
mV
[Reset]
High reset output voltage
V
ORH
I
ORH
= 200 A, Cd pin open
4.73
4.98
5.23
V
Low reset output voltage
V
ORL
I
SRL
= 2 mA, Cd is shorted to GND
100
200
mV
Reset threshold voltage
V
RT
Note 4
4.3
V
Reset hysteresis voltage
Vhys
Note 5
40
100
200
mV
Reset output delay time
td
Cd = 0.1 F
10
ms
Notes:
1.
Source voltage to ground when an 8
load is connected between bridge amplifier outputs.
2.
Sink voltage to ground when an 8
load is connected between bridge amplifier outputs.
3.
When the mute signal is high, all amplifier outputs turn on, and when low, all amplifier outputs turn off. When the mute
signal is low, amplifier output is undefined.
4.
5 V supply voltage when the reset output goes low.
5.
Potential difference from the 5 V supply voltage when the reset output goes low and when it goes high.
Allowable
power
dissipation,
Pd
max
W
Ambient temperature, Ta C
Pd max Ta
Independent IC
LA6541D
No. 5591- 2/7
Pin Functions
Pin No.
Pin Name
Description (Function)
1
V
CC
Power supply (shorted with pin 30)
2
Mute
ON/OFF control for all BTL AMP outputs
3
V
IN
1
BTL AMP 1 input
4
VG1
BTL AMP 1 input (for gain control)
5
V
O
1
BTL AMP 1 output (non-inverting side)
6
V
O
2
BTL AMP 1 output (inverting side)
7
GND
GND (minimum electric potential)
8
GND
GND (minimum electric potential)
9
GND
GND (minimum electric potential)
10
V
O
3
BTL AMP 2 output (inverting side)
11
V
O
4
BTL AMP 2 output (non-inverting side)
12
VG2
BTL AMP 2 input (for gain control)
13
V
IN
2
BTL AMP 2 input
14
REG OUT
Connection for collector of external transistor (PNP); 5 V supply output
15
REG IN
Connection for base of external transistor (PNP)
16
RES
Reset output
17
C
D
Reset output delay time setting (with capacitor)
18
V
IN
3
BTL AMP 3 input
19
VG3
BTL AMP 3 input (for gain control)
20
V
O
5
BTL AMP 3 output (non-inverting side)
21
V
O
6
BTL AMP 3 output (inverting side)
22
GND
GND (minimum electric potential)
23
GND
GND (minimum electric potential)
24
GND
GND (minimum electric potential)
25
V
O
7
BTL AMP 4 output (inverting side)
26
V
O
8
BTL AMP 4 output (non-inverting side)
27
VG4
BTL AMP 4 input (for gain control)
28
V
IN
4
BTL AMP 4 input
29
V
REF
Reference voltage input for level shift circuit
30
V
CC
Power supply (shorted with pin 1)
LA6541D
No. 5591- 3/7
Pin Assignment (Block Diagram)
Level shift
1
Level shift
2
Level shift
4
Level shift
3
Regulator
Top view
LA6541D
No. 5591- 4/7
Sample Application Circuit
To V
CC
Microcontroller
Level
shift
BTL
driver
Level
shift
BTL
driver
V
CC
(connected to pins 1 and 30)
Microcontroller
Note: Use a delay capacitor (Cd) whose capacitance does not change much according to the temperature.
BTL
driver
Level
shift
Regulator
BTL
driver
Level
shift
LA6541D
No. 5591- 5/7
Pin Functions
Pin
Name
Pin No.
Equivalent Circuit
Description
Input
V
IN
1
V
IN
2
V
IN
3
V
IN
4
VG1
VG2
VG3
VG4
3
13
18
28
4
12
19
27
Input pins
Output
V
O
1, V
O
2
V
O
3, V
O
4
V
O
5, V
O
6
V
O
7, V
O
8
5, 6
10, 11
20, 21
25, 26
Output pins
Mute
Mute
2
Output ON/OFF
Truth Table
Input
MUTE
CH1
CH2
CH3
CH4
V
O
1
(Amp1)
V
O
2
(Amp2)
V
O
3
(Amp3)
V
O
4
(Amp4)
V
O
5
(Amp5)
V
O
6
(Amp6)
V
O
7
(Amp7)
V
O
8
(Amp8)
H
H
H
L
L
H
H
L
L
H
L
--
--
--
--
--
--
--
--
L
H
L
H
H
L
L
H
H
L
L
--
--
--
--
--
--
--
--
* The ``--'' symbol means ``undefined.''
LA6541D
No. 5591- 6/7
Reset Operation
No products described or contained herein are intended for use in surgical implants, life-support systems,
aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like,
the failure of which may directly or indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
1
Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation
and all damages, cost and expenses associated with such use:
2
Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. 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, 1996. Specifications and information herein are subject to change without notice.
LA6541D
No. 5591- 7/7
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