LA4725 datasheet(2/3 Pages) SANYO

No. de pieza	LA4725

Descripción Electrónicos	2-Channel BTL Power Amplifier 30 W30 W with Standby Switch for Car Stereos

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Fabricante Electrónico	SANYO [Sanyo Semicon Device]

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LA4725

No.5715-2/3

Operating Characteristics at Ta = 25 ˚C, VCC = 13.2 V, RL = 4 kΩ, f = 1 kHz, Rg = 600 Ω

Parameter

Symbol

Conditions

Ratings

Unit

min

typ

max

Quiescent current

ICCO

Rg=0

70

125

250

mA

Standby current

IST

10

60

µA

Voltage gain

VG

38

40

42

dB

Total harmonic distortion

THD

PO=1 W

0.06

0.2

%

Output power

PO1

RL=4 Ω, THD=10 %, VCC=13.2 V

13

17

W

PO2

RL=4 Ω, THD=10 %, VCC=14.4 V

20

W

PO3

RL=4 Ω, THD=30 %, VCC=14.4 V

30

W

Output offset voltage

VN offset

Rg=0

–300

+300

mV

Output noise voltage

VNO

Rg=0, B.P.F.=20 Hz to 20 kHz

0.1

0.5

mVrms

Ripple rejection ratio

SVRR

Rg=0, fR=100 Hz, VR=0 dBm

40

50

dB

Channel separation

Chsep

Rg=10 k

Ω, V

O=0 dBm

50

60

dB

Input resistance

Ri

21

30

39

k

Ω

Standby pin applied voltage

Vst

Amp on, applied through 10 k

Ω

2.5

VCC

V

–20

0

20

40

140

160

60

80

100

120

0

3.1

5

10

10.4

13.9

15

20

20.8

30

32

25

35

Ambient temperature, Ta — ˚C

Pd max — Ta

θf=3˚C/W

Arbitrarily large heat sink

No fin

θf=4˚C/W

θf=7˚C/W

θf=10˚C/W

θjc=2.0˚C/W

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