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LA4425A Datasheet(PDF) 2 Page - Sanyo Semicon Device

Part No. LA4425A
Description  5 W Power Amplifier with Very Few External Parts for Car Radio and Car Stereo
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA4425A Datasheet(HTML) 2 Page - Sanyo Semicon Device

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Operating Characteristics at Ta = 25°C, VCC = 13.2 V, RL =4 Ω,f=1 kHz, Rg = 600 Ω, specified
board/specified circuit, 30
× 30 × 1.5 mm3 thick aluminum used
Parameter
Symbol
Conditions
min
typ
max
Unit
Quiescent current
ICCO
65
130
mA
Voltage gain
VG
VO = 0 dBm
43
45
47
dB
Output power
PO1
13.2 V/4
Ω, THD = 10%
4
5
W
PO2
14.4 V/4
Ω, THD = 10%
5
6
W
Total harmonic distortion
THD
VO = 2V
0.1
1.0
%
Output noise voltage
VNO
Rg = 0, BPF = 20 Hz to 20 kHz
0.15
0.5
mV
Ripple rejection ratio
SVRR1
Rg=0,BPF=20 Hzto20 kHz
VR = 0 dBm, fR = 100 Hz
30
40
dB
SVRR2
Rg=0,BPF=20 Hzto20 kHz
VR = 0 dBm, fR = 1 kHz
47
dB
Overvoltage attack
VCCX
Rg = 0
21.5
V
Starting time
ts
0.35
s
Input resistance
RIN
50
k
Roll-off frequency
fL
40
Hz
fH
90
kHz
Thermal operating temperature
Tc
125
°C
Sample Application Circuit
.
On-chip overvoltage protection
.
On-chip thermal protection
.
On-chip pop noise reducing circuit
.
On-chip output D.C. short protection
Pin Voltage at VCC = 13.2 V
Characteristics
Input
Small signal
GND
Large signal
GND
Output
VCC
Pin No.
12345
Pin voltage
(reference value)
(
6 2VBE)
1.4 V
0V
0V
(
6 1/2 VCC)
6.5 V
(VCC)
13.2 V
Pd max – Ta
With silicone grease applied.
Heat sink mounting torque 39 N·cm
With infinite heat sink
With 100
× 100 × 1.5 mm3 Al heat sink
With 50
× 50 × 1.5 mm3
Al heat sink
With 30
× 30 × 1.5 mm3 Al heat sink
No heat sink
Ambient temperature, Ta – °C
LA4425A
No.3309-2/8


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