SANYO LA4700

Ordering number: EN2677C
Monolithic Linear IC
LA4700N
2-Channel 12W AF Power Amplifier for Car
Stereos
Functions
Package Dimensions
. Standby switch function built in
. Pop noise suppressor built in
. Thermal shutdown circuit built in
. Overvoltage/surge protector built in
. Output pin-to-GND short protector built in
. Output pin-to-V short protector built in
. Load short protector built in
unit : mm
3109-SIP18H
[LA4700N]
CC
Features
. Low pop noise at the time of power supply ON/OFF
. Excellent oscillation stability
SANYO : SIP18H
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Surge supply voltage
Symbol
Conditions
Ratings
Unit
VCC max1
Quiescent t = 30 s
26
V
VCC max2
Quiescent
18
V
VCC max3
Operating
16
V
VCC surge
t = 200 ms rise time 1 ms
50
V
Maximum output current
Io peak
Per channel
Allowable power dissipation
Pd max
*Note
4
A
37.5
W
Operating temperature
Topr
–30 to +75
°C
Storage temperature
Tstg
–40 to +150
°C
Ratings
Unit
Operating Conditions at Ta = 25°C
Parameter
Recommended operating voltage
Operating voltage range
Recommended load resistance
Symbol
Conditions
VCC
VCC op
RL
BTL/2ch
13.2
V
10 to 16
V
4 to 8
Ω
*Note: Use flat head screws for attaching heat sink with tightening torque 39 to 59 Nccm.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
41596HA(II)/3140MO/N257TA,TS No.2677-1/5
LA4700N
Operating Characteristics at Ta = 25°C, VCC = 13.2 V, RL = 4 Ω, f = 1 kHz, Rg = 600 Ω,
See specified Test Circuit
Symbol
Icco
VG
∆VG
THD
Po
VNO
SVRR
CHsep
1st
Voff
Allowable power dissipation, Pd max – W
Parameter
Quiescent current
Voltage gain
Voltage gain difference
Total harmonic distortion
Output voltage
Output noise voltage
Ripple rejection
Channel separation
Standby current
Offset voltage
Conditions
Po = 1 W
THD = 10%
Rg = 0, B.P.F. = 20 Hz to 20 kHz
Vr = 0 dBm, fR = 100 Hz, Rg = 0
Po = 1 W, Rg = 10 kΩ
min
60
48
10
40
50
–300
typ
140
50
0.15
12
0.2
55
60
10
max
200
52
2
0.75
0.4
100
300
Unit
mA
dB
dB
%
W
mV
dB
dB
µA
mV
Infinite heat sink
No fin
Ambient temperature, Ta – °C
Equivalent Circuit Block Diagram
Noninverting NF
Standby switch
Inverting NF
Inverting
amp
Inverting output
Noninverting
amp
Noninverting output
protector
Ripple filter
Pop noise
suppressor
Noninverting NF
Noninverting
amp
Noninverting output
Inverting
amp
Inverting output
Inverting NF
No.2677-2/5
LA4700N
Sample Application Circuit
Inverting
output
Noninverting
NF
Inverting
NF
CMOS
µcon
contl
Inverting
output
Noninverting
NF
Inverting
NF
Main switch
Noninverting
output
Noninverting
output
* Connect the portion bounded by a dotted line according to your intended applications.
When the power relay is not used, connect pin 9 to GND. In this case, the power switch is used to turn ON/OFF the LA4700N
or the main switch is used to turn ON/OFF the LA4700N.
Muting
Supply voltage, VCC – V
Po – VIN
Output power, Po – W
Quiescent current, Icco – mA
Icco – VCC
Input voltage, VIN – mV
No.2677-3/5
LA4700N
THD – Po
Response – dB
Total harmonic distortion, THD – %
f Response
Total harmonic distortion, THD – %
Frequency, f – Hz
THD – VCC
Total harmonic distortion, THD – %
Output power, Po – W
THD – f
Frequency, f – Hz
Pd, ICC – Po
Supply voltage, VCC – V
Ist – VCC
Standby current, Ist – µA
Current drain, Icc – A
Power dissipation, Pd – W
Power supply capacitor
0.22µF/Mylar
Supply voltage, VCC– V
VNO – VCC
Output noise voltage, VNO – mV
Ripple rejection ratio, SVRR – dB
Output power, Po – W
SVRR – fR
Ripple frequency, fR – Hz
Supply voltage, VCC – V
No.2677-4/5
LA4700N
SVRR – VCC
Output power, Po – W
Active-high Signal
on Standby Pin – V
Channel separation, CH sep – dB
Supply voltage, VCC – V
CH sep – f
Locus of Potential
on Output Pin – V
Ripple rejection ratio, SVRR – dB
Channel separation, CH sep – dB
CH sep – Po
Frequency, f – Hz
To shorten tS in the application herein, the filter
capacitor (pin 14) value 220 µF is decreased.
Filter capacitor value 100 µF gives tS of 0.6 to
0.7 second.
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 April, 1996. Specifications and information herein are subject to change without notice.
No.2677-5/5