LA4708N 반도체 회로 부품 판매점
20W 2-channel BTL AF Power Amplifier
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 ON Semiconductor |
Ordering number : ENA1783A
LA4708N
Monolithic Linear IC
20W 2-channel BTL AF Power
Amplifier for Car Stereo
http://onsemi.com
Overview
The LA4708N is a BTL two-channel power IC for car audio developed in pursuit of excellent sound quality. Low-region
frequency characteristics have been improved through the use of a new NF capacitor-less circuit, and crosstalk which
causes “muddy” sound has been reduced by improving both circuit and pattern layout. As a result, the LA4708N provides
powerful bass and clear treble. In addition, the LA4708N features on-chip protectors and standby switch.
Features
High power : supports total output of 30W 30W (VCC = 13.2V, THD = 30%, RL = 4)
Supports RL = 2 (PO = 30W when VCC = 13.2V, THD = 10%)
Designed for excellent sound quality (fL 10Hz, fH = 130kHz)
NF capacitor-less
Any on time settable by external capacitor
Less pop noise
Standby switch circuit on chip (microprocessor supported)
Various protectors on chip (output-to-ground short/output-to-VCC short/load short/overvoltage/thermal shutdown circuit)
Specifications
Maximum Ratings at Ta = 25C
Parameter
Symbol
Conditions
Maximum supply voltage
VCC max 1 No signal, t = 60s
VCC max 2
Surge supply voltage
Maximum output current
Allowable power dissipation
VCC surge
IO peak
Pd max
t 0.2s, single giant pulse
Per channel
Arbitrarily large heat sink
Operating temperature
Topr
Storage temperature
Tstg
* Set VCC, RL in a range that does not exceed Pd max = 37.5W
Ratings
24
16
50
4.5
37.5
35 to 85
40 to 150
Unit
V
V
V
A
W
C
C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,
damage may occur and reliability may be affected.
ORDERING INFORMATION
See detailed ordering and shipping information on page 9 of this data sheet.
Semiconductor Components Industries, LLC, 2014
March, 2014
SIP18H
30314HK/61610SY 20100405-S0010 No.A1783-1/9
LA4708N
Operating Conditions at Ta = 25C
Parameter
Symbol
Recommended supply voltage
Operating voltage range
Recommended load resistance
Recommended load resistance range
VCC
VCC op
RL
RL op
Conditions
Range where Pd max is not exceeded
Ratings
13.2
9 to 16
4
2 to 4
Unit
V
V
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended
Operating Ranges limits may affect device reliability.
Electrical Characteristics at Ta = 25C, VCC = 13.2V, RL = 4, f = 1kHz, Rg = 600
Parameter
Symbol
Conditions
min typ
Quiescent current
Standby current
ICCO
lst
70 150
10
Voltage gain
VG
38 40
Total harmonic distortion
Output power
Output offset voltage
Output noise voltage
Ripple rejection ratio
THD
PO1
PO2
PO3
VN offset
VNO
SVRR
PO = 2W
THD = 10%
THD = 10%, VCC = 14.4V
THD = 10%, RL = 2
Rg = 0
Rg = 0, B.P.F. = 20Hz to 20kHz
Rg = 0, fR = 100Hz, VR = 0dBm
16
300
40
0.07
20
24
30
0.1
50
Channel separation
Input resistance
Standby pin applied voltaga
CHsep
ri
Vst
Rg = 10k, VO = 0dBm
Amp on, applied through 10k
50 60
21 30
2.5
max
250
60
42
0.4
300
0.5
39
VCC
Unit
mA
A
dB
%
W
W
W
mV
mVrms
dB
dB
k
V
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be
indicated by the Electrical Characteristics if operated under different conditions.
Package Dimensions
unit : mm
SIP18 36.8x13.8 / SIP18H
CASE 127AS
ISSUE A
GENERIC
MARKING DIAGRAM*
XXXXXXXXXX
YMDDD
XXXXX = Specific Device Code
Y = Year
M = Month
DDD = Additional Traceability Data
*This information is generic. Please refer to
device data sheet for actual part marking.
No. A1783-2/9
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PDF 파일 내의 페이지 : 총 9 페이지
제조업체: ON Semiconductor
( onsemi )
LA4708N amplifier
데이터시트 다운로드 :
[ LA4708N.PDF ]
[ LA4708N 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
관련 데이터시트
LA4708
20 W 2-channel BTL AF Power Amplifier for Car Stereos - Sanyo
LA4708N
20W 2-channel BTL AF Power Amplifier - ON Semiconductor