SANYO LA4700N Datasheet
Ordering number: EN2677C
Monolithic Linear IC
LA4700N
2-Channel 12W AF Power Amplifier for Car
Stereos
Functions
.
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-VCCshort protector built in
.
Load short protector built in
Package Dimensions
unit : mm
3109-SIP18H
[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 Ratings Unit
Maximum supply voltage V
Surge supply voltage V
Maximum output current Io peak Per channel 4 A
Allowable power dissipation Pd max *Note 37.5 W
Operating temperature Topr –30 to +75 °C
Storage temperature Tstg –40 to +150 °C
max1 Quiescentt=30s 26 V
CC
V
max2 Quiescent 18 V
CC
V
max3 Operating 16 V
CC
surge t = 200 ms rise time 1 ms 50 V
CC
Operating Conditions at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Recommended operating voltage V
Operating voltage range V
Recommended load resistance R
*Note: Use flat head screws for attaching heat sink with tightening torque 39 to 59 Nccm.
CC
op 10 to 16 V
CC
L
BTL/2ch 4 to 8 Ω
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
13.2 V
LA4700N
Operating Characteristics at Ta = 25°C, VCC= 13.2 V, RL=4Ω,f=1kHz, Rg = 600 Ω,
See specified Test Circuit
Parameter Symbol Conditions min typ max Unit
Quiescent current Icco 60 140 200 mA
Voltage gain VG 48 50 52 dB
Voltage gain difference ∆VG 2dB
Total harmonic distortion THD Po=1W 0.15 0.75 %
Output voltage Po THD = 10% 10 12 W
Output noise voltage V
NO
Ripple rejection SVRR Vr = 0 dBm, f
Channel separation CHsep Po=1W,Rg=10kΩ 50 60 dB
Standby current 1st 10 100 µA
Offset voltage Voff –300 300 mV
Rg = 0, B.P.F. = 20 Hz to 20 kHz 0.2 0.4 mV
= 100 Hz, Rg = 0 40 55 dB
R
Infinite heat sink
Allowable power dissipation, Pd max – W
Equivalent Circuit Block Diagram
Standby switch
Ripple filter
Pop noise
suppressor
No fin
Ambient temperature, Ta – °C
Noninverting NF
Inverting NF
protector
Inverting
amp
Inverting
amp
Noninverting
amp
Noninverting
amp
Inverting output
Noninverting output
Noninverting output
Inverting output
Noninverting NF Inverting NF
No.2677-2/5
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