SANYO LA6537M

Ordering number: EN 5231
Monolithic Linear IC
LA6537M
4-channel Bridge Driver
for CD and CD-ROMs
Overview
Package Dimensions
The LA6537M is a 4-channel bridge (BTL) driver which was
developed for compact discs and CD-ROMs.
unit : mm
3073A-MFP30SLF
Features and Functions
[LA6537M]
. 4-channel bridge (BTL) power amplifier.
. I max 700 mA.
. With mute circuit (Amp 3, Amp 4).
O
SANYO : MFP30SLF
Allowable power dissipation, Pd max — W
Pd max — Ta
PCB (glass epoxy resin)
Cu foil
Steel substrate (t = 1 mm)
reference value
Thickness 1.5 mm
Mounted on PCB (glass epoxy)
Independent IC
Ambient temperature, Ta — °C
Specifications
Maximum Ratings at Ta = 25 °C
Parameter
Maximum supply voltage
Maximum input voltage
Mute pin voltage
Allowable power dissipation
Symbol
Conditions
Ratings
Unit
VCC max
14
V
VINB
13
V
VM
13
V
0.9
W
Pd max
* Mounted on PCB shown below
Operating temperature
Topr
–20 to +75
°C
Storage temperature
Tstg
–55 to +150
°C
* PCB (20 × 30 × 1.5 mm glass epoxy resin)
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
92995HA(II) No.5231-1/4
LA6537M
Operating Conditions at Ta = 25 °C
Parameter
Symbol
Recommended supply voltage
Conditions
Ratings
VCC
Unit
4 to 13
V
Electrical Characteristics at Ta = 25 °C, VCC = 7.5 V
Parameter
Symbol
ICC1
ICC2
VOF1
VOF2
IB
VBIN
VIN
VO1
VO2
VG
SR
VM
IM
No-load current drain
Output offset voltage
Input bias current
Buffer input voltage range
Input voltage range
Output source voltage
Output sink voltage
Closed-circuit voltage gain
Slew rate
Mute on voltage
Mute pin inflow current
Note
Note
Note
Note
Conditions
1
2
3, amplifiers 1 — 2, 7 — 8
3, ampifiers 3 — 4, 5 — 6
min
20
–50
–50
1.5
1.0
5.0
Note 4, RL = 8.0 Ω
Note 5, RL = 8.0 Ω
Bridge amplifier
Note 6
Note 6
typ
40
26
max
60
60
+50
+50
100
500
VCC −1.5
VCC −1.5
5.6
1.8
2.4
12
0.15
2
60
Unit
mA
mA
mV
mV
nA
V
V
V
V
dB
V/µs
V
µA
Notes:
1. Mute off and buffer in assume 1/2 VCC V.
2. Mute off and buffer in assume 0.5 V.
3. Represents the interoutput difference.
4. Voltage relative to ground (source) when an 8 Ω load is connected between bridge amplifier outputs.
5. Voltage relative to ground (sink) when an 8 Ω load is connected between bridge amplifier outputs.
6. Muting is activated when high, and the amplifier outputs 3 and 4 are off.
Test Method
SW No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Item
ICC1
a
ON
ON
OFF
OFF
b
b
OFF
ON
OFF
OFF
b
OFF
OFF
ICC2
a
ON
ON
OFF
OFF
b
b
OFF
ON
OFF
OFF
a
OFF
OFF
VOF1,2
b
ON
ON
OFF
OFF
b
b
OFF
ON
OFF
OFF
b
OFF
OFF
IB
b
OFF
OFF
ON
OFF
a
a
ON
OFF
OFF
OFF
b
OFF
OFF
VO1
b
OFF
ON
OFF
ON
b
a
OFF
OFF
OFF
ON
b
OFF
OFF
VO2
b
OFF
OFF
OFF
OFF
a
b
OFF
ON
ON
ON
b
OFF
OFF
VM
b
ON
ON
OFF
OFF
b
b
OFF
ON
OFF
OFF
b
OFF
OFF
IM
b
ON
ON
OFF
OFF
b
b
OFF
ON
OFF
OFF
b
OFF
OFF
VG
b
ON
ON
OFF
OFF
b
b
OFF
ON
OFF
OFF
b
ON
ON
1.
2.
3.
4.
5.
6.
7.
For ICC1 and 2, measure the inflow current on the VCC pin.
For VOF1 and 2, measure the voltage between pins 3 and 4 (amplifiers 1 and 2), pins 27 and 28 (amplifiers 7 and 8), pins 12
and 13 (amplifiers 3 and 4), and pins 18 and 19 (amplifiers 5 and 6).
For IB, measure the voltage across the 100 kΩ resistor (IB = V/100 kΩ).
For VO1 and 2, measure each output voltage at input voltages 1.75 V and 5.75 V, respectively.
VM is the mute pin (pin 7) voltage when the output goes off.
IM is the mute pin (pin 7) inflow current when the output goes off.
For VG, measure the voltage between pins 3 and 4 (amplifiers 1 and 2), pins 27 and 28 (amplifiers 7 and 8), pins 12 and 13
(amplifiers 3 and 4), and pins 18 and 19 (amplifiers 5 and 6) at f = 1 kHz, and use the following formula:
VG = 20 log VO/V1 dB.
No.5231-2/4
LA6537M
Test Circuit
Block Diagram and Pin Assignment
Top view
Do not use the NC pin.
No.5231-3/4
LA6537M
Sample Application Circuit
Load
Load
Load
Load
Top view
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 September, 1995. Specifications and information herein are subject to change without notice.
No.5231-4/4