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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 . 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
CC
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 Maximum supply voltage Symbol VCC max1 VCC max2 VCC max3 Surge supply voltage Maximum output current Allowable power dissipation Operating temperature Storage temperature VCC surge Io peak Pd max Topr Tstg Quiescent Operating t = 200 ms rise time 1 ms Per channel *Note Conditions Quiescent t = 30 s Ratings 26 18 16 50 4 37.5 30 to +75 40 to +150 Unit V V V V A W °C °C
Operating Conditions at Ta = 25°C
Parameter Recommended operating voltage Operating voltage range Recommended load resistance Symbol VCC VCC op RL BTL/2ch Conditions Ratings 13.2 10 to 16 4 to 8 Unit V V
*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 , f = 1 kHz, Rg = 600 , See specified Test Circuit
Parameter Quiescent current Voltage gain Voltage gain difference Total harmonic distortion Output voltage Output noise voltage Ripple rejection Channel separation Standby current Offset voltage Symbol Icco VG VG THD Po VNO SVRR CHsep 1st Voff Conditions min 60 48 typ 140 50 0.15 12 0.2 55 60 10 max 200 52 2 0.75 0.4 Unit mA dB dB % W mV dB dB µA mV
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 k
10 40 50 300
100 300
Allowable power dissipation, Pd max W
Infinite heat sink
No fin
Ambient temperature, Ta °C
Equivalent Circuit Block Diagram
Inverting NF
Noninverting NF
Inverting amp
Inverting output
Standby switch
Noninverting amp
Noninverting output
Ripple filter
protector
Noninverting amp
Pop noise suppressor
Noninverting output
Inverting amp
Inverting output
Noninverting NF
Inverting NF
No.2677-2/5
LA4700N
Sample Application Circuit
Main switch
Noninverting NF
Inverting NF
CMOS µcon contl
Inverting output Inverting output
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 Quiescent current, Icco mA
Inverting NF
Noninverting NF
Po VIN
Muting
Supply voltage, VCC V
Output power, Po W
Input voltage, VIN mV
No.2677-3/5
LA4700N
THD Po Total harmonic distortion, THD % f Response
Output power, Po W THD f Total harmonic distortion, THD % Total harmonic distortion, THD %
Response dB
Frequency, f Hz THD VCC
Frequency, f Hz Pd, ICC Po Power dissipation, Pd W
Supply voltage, VCC V Ist VCC
Power supply capacitor 0.22µF/Mylar
Output power, Po W SVRR fR Ripple rejection ratio, SVRR dB Output noise voltage, VNO mV
Standby current, Ist µA
Current drain, Icc A
Supply voltage, VCC V VNO VCC
Ripple frequency, fR Hz
Supply voltage, VCC V No.2677-4/5
LA4700N
SVRR VCC Channel separation, CH sep dB Ripple rejection ratio, SVRR dB CH sep Po
Channel separation, CH sep dB
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.
Active-high Signal on Standby Pin V
Locus of Potential on Output Pin V
Supply voltage, VCC V CH sep f
Output power, Po W
No.2677-5/5