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-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
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=4,f=1kHz, Rg = 600 ,
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=10k 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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