參數(shù)資料
型號: TDA7491HV
廠商: 意法半導體
英文描述: 20 W + 20 W dual BTL class-D audio amplifier
中文描述: 20瓦20瓦的雙橋接D類音頻放大器
文件頁數(shù): 7/26頁
文件大?。?/td> 869K
代理商: TDA7491HV
TDA7491HV
Electrical specifications
7/26
3
Electrical specifications
3.1
Absolute maximum ratings
Table 3.
3.2
Thermal data
Table 4.
3.3
Electrical specifications
Unless otherwise stated, the results in
Table 5
below are given for the conditions:
VCC = 18 V, R
L
(load) = 8
, R
OSC
= 39 k
, C1 = 100 nF, f = 1 kHz, G
V
= 20 dB, and
Tamb = 25° C.
Table 5.
Absolute maximum ratings
Symbol
Parameter
Value
Unit
VCC
DC supply voltage for pins PVCCA, PVCCB, SVCC
23
V
T
op
Operating temperature
0 to 70
°C
T
j
Junction temperature
-40 to 150
°C
T
stg
Storage temperature
-40 to 150
°C
Thermal data
Symbol
Parameter
Min
Typ
Max
Unit
R
th j-case
Thermal resistance, junction to case
2
3
°C/W
R
th j-amb
Thermal resistance, junction to ambient
(mounted on recommended PCB)
(1)
1.
FR4 with vias to copper area of 9 cm
2
(see also
Section 7.9: Heatsink requirements on page 24
).
24
Electrical specifications
Symbol
Parameter
Condition
Min
Typ
Max
Unit
VCC
Supply voltage for
pins PVCCA, PVCCB, SVCC
5
18
V
I
q
Total quiescent
26
35
mA
I
qSTBY
Quiescent current in standby
2.5
5.0
μA
V
OS
Output offset voltage
Play mode
-200
200
mV
V
OS
Output offset voltage
Mute mode
-300
300
mV
I
OC
Over current protection threshold R
L
= 0
3
5
A
T
j
Junction temperature at thermal
shut-down
150
°C
R
i
Input resistance
Differential input
55
60
k
V
OV
Over voltage protection threshold
19
21
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