LA4700 [SANYO]
2-Channel 12W AF Power Amplifier for Car Stereos; 2通道12W自动对焦功率放大器汽车音响
| 型号： | LA4700 |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | 2-Channel 12W AF Power Amplifier for Car Stereos |
| 文件： | 总5页 (文件大小：138K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number: EN2677C
Monolithic Linear IC
LA4700N
2-Channel 12W AF Power Amplifier for Car
Stereos
Functions
Package Dimensions
unit : mm
.
Standby switch function built in
Pop noise suppressor built in
.
.
.
.
.
.
3109-SIP18H
Thermal shutdown circuit built in
Overvoltage/surge protector built in
Output pin-to-GND short protector built in
Output pin-to-VCC short protector built in
Load short protector built in
[LA4700N]
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
Symbol
Conditions
Quiescent t = 30 s
Ratings
26
Unit
V
Maximum supply voltage
V
V
V
V
max1
CC
CC
CC
CC
max2
max3
surge
Quiescent
18
V
Operating
16
50
V
Surge supply voltage
t = 200 ms rise time 1 ms
Per channel
*Note
V
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Io peak
4
A
Pd max
Topr
37.5
W
°C
°C
–30 to +75
–40 to +150
Tstg
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
13.2
Unit
V
Recommended operating voltage
Operating voltage range
V
CC
op
V
10 to 16
4 to 8
V
CC
Recommended load resistance
R
BTL/2ch
Ω
L
*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
Parameter
Quiescent current
Symbol
Icco
VG
Conditions
min
60
typ
140
50
max
200
52
Unit
mA
dB
dB
%
Voltage gain
48
Voltage gain difference
Total harmonic distortion
Output voltage
∆VG
THD
Po
2
Po = 1 W
0.15
12
0.75
THD = 10%
10
W
Output noise voltage
Ripple rejection
V
Rg = 0, B.P.F. = 20 Hz to 20 kHz
0.2
55
0.4
mV
dB
dB
µA
mV
NO
SVRR
CHsep
1st
Vr = 0 dBm, f = 100 Hz, Rg = 0
R
Po = 1 W, Rg = 10 kΩ
40
50
Channel separation
Standby current
60
10
100
300
Offset voltage
Voff
–300
Infinite heat sink
No fin
Ambient temperature, Ta – °C
Equivalent Circuit Block Diagram
Inverting NF
Noninverting NF
Inverting
amp
Inverting output
Standby switch
Non-
inverting
amp
Noninverting output
Ripple filter
Pop noise
protector
Non-
inverting
amp
Noninverting output
Inverting output
suppressor
Inverting
amp
Noninverting NF
Inverting NF
No.2677-2/5
LA4700N
Sample Application Circuit
Main switch
CMOS
µcon
contl
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.
Icco – VCC
Po – VIN
Muting
Supply voltage, VCC – V
Input voltage, VIN – mV
No.2677-3/5
LA4700N
THD – Po
f Response
Output power, Po – W
Frequency, f – Hz
THD – f
THD – VCC
Frequency, f – Hz
Pd, ICC – Po
Supply voltage, VCC – V
Ist – VCC
Power supply capacitor
0.22µF/Mylar
Output power, Po – W
Supply voltage, VCC– V
SVRR – fR
VNO – VCC
Ripple frequency, fR – Hz
Supply voltage, VCC – V
No.2677-4/5
LA4700N
SVRR – VCC
CH sep – Po
Supply voltage, VCC – V
Output power, Po – W
CH sep – f
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
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