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TDA7570 데이터시트(PDF) 7 Page - STMicroelectronics

부품명 TDA7570
상세설명  250W PWM high efficiency power audio amplifier
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TDA7570
Electrical specifications
7/17
3
Electrical specifications
3.1
Absolute maximum ratings
3.2
Thermal data
3.3
Electrical characteristics
Table 3.
Absolute maximum ratings
Symbol
Parameter
Value
Unit
±Vs
Operating supply voltage
±30
V
Ptot
Power dissipation Tcase = 85°C
21
W
Tj
Junction temperature, operating range
-40 to 150
°C
Tstg
Storage temperature, operating range
-55 to 150
°C
Table 4.
Thermal data
Symbol
Parameter
Value
Unit
Rth j-case Thermal resistance junction to case
3
°C/W
Table 5.
Electrical characteristics
(VS = ±25V, RL = 4Ω, f = 100Hz, Tj = 25°C, Gain = 28dB, application circuit shown in
Figure 3, 2x65/1x130W system, unless otherwise specified.)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
±VS
Operating supply voltage
±12
±30
V
Iq
Quiescent supply current
Vst-by = 5V, Fswitching = 352.8kHz
from +VS
from +VS -low
from -VS
20
5.4
20
25
7
25
35
9
35
mA
mA
mA
Ist-by
Quiescent supply current
Vst-by = 0
from +VS
0.35
0.5
0.65
mA
Vst-by = 0
from -VS
-0.2
-0.3
-0.4
mA
Vos
Output offset voltage
Output-GND (single-ended)
350
mV
Output L - Output R (bridge)
120
mV
Po
Output Power
Single-ended, @ THD = 1%
2 x 70W system
70
W
Bridge, @ THD = 1%
1 x 250W system
250
W
Pd
Power dissipation of the
TDA7570
Quiescent condition
1.5
1.75
W


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