TDA7490 STMicroelectronics, TDA7490 Datasheet - Page 4

• Manufacturer Part Number: TDA7490
• Description: IC AMP AUDIO 50W D 25FLEXIWATT
• Manufacturer: STMicroelectronics
• Type: Class Dr

Specifications of TDA7490

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 50W x 1 @ 16 Ohm; 25W x 2 @ 8 Ohm
• Voltage - Supply: ±10 V ~ 25 V
• Features: Depop, Mute, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Through Hole
• Package / Case: 25-Flexiwatt (bent and staggered leads)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3985-5

TDA7490
Table 5. Electrical Characteristics
(Refer to the test circuit, V
T
*: Po = measured across the load using the following inductor: COIL58120 MPPA 2 (magnectics) TURNS= 20∅ 1 mm
(1) L = 15µH, C = 470nF
(2) η
(3) ∆Gv is intended with R2, R17, R5, R9 1% precision
(4) Fsw = 0.25 · (1/(300ns + R13 · (C17 + 76pF) . 0.85)
(5) V
4/10
MUTE & STAND-BY FUNCTIONS
Symbol
amb
Fsw
P
R
V
I
∆G
V
A
V
qST-BY
V
T
P
THD
SVR
V
o(BTL)
I
η
ST-BY
DSON
MUTE
MUTE
PLAY
Top
V
P
max
G
C
RMAX
P
e
rmax
r
T
R
I
o
, T
OS
(2)
q
v
N
S
(1)
D
o
T
j
v
= 25°C unless otherwise specified.)
i
(4)
(3)
= 90% where V
t
= (+Vcc) - (-Vcc) when V
Supply Range
Total Quiescent Current
Output Offset Voltage
Output Power
Output Power in Bridge
Configuration
Output Power
Maximum Dissipated Power
Efficiency (*)
Total Harmonic Distortion
Overcurrent Protection
Threshold
Thermal Shut-down Junction
Temperature
Closed Loop Gain
Gain Matching
Total Input Noise
R
Cross talk
Input Resistance
Supply Voltage Rejection
Overvoltage Threshold
Rising and Falling Time
Power Transistor on Resistance
Switching Frequency Range
Stand-by range
Mute Range
Play Range
Mute Attenuation
Quiescent Current @ Stand-by
G
= 50Ω
cc
= ±25V; R
Parameter
CC
R
L
≥V
= ±21V; R
= 8Ω; Po = 43W + 43W; THD = 20%
RMAX
(5)
the device goes in Stand-By mode
L
= 8Ω; Demod. filter L = 30µH, C = 220nF; f = 1KHz; fsw = 200kHz;
R
THD = 10%
THD= 1%
V
THD = 10%
THD=1%
V
THD = 10%
THD=1%
R
THD = 10%
THD=1%
V
Pο = 25W + 25W; THD = 10%
P
R
R
A Curve
f = 20Hz to 22KHz
f = 1 KHz, P
f = 100Hz; V
L
S
S
L
CC
o
L
L
= ∞ no LC filter
= 20W + 20W
= ±22V
=±17V; R
= 4Ω Vcc=±16V
= 8Ω; Po = 1 W
= 0
= ±21V; R
Test Condition
;
R
o
r
L
L
= 1W
= 0.5
= 8Ω
L
= 16Ω
= 8Ω
Min.
-150
±10
100
3.5
1.7
20
15
80
29
20
55
-1
0
4
Typ.
150
200
0.1
0.4
70
25
18
50
40
50
40
25
18
89
30
12
55
30
60
55
50
60
6
5
7
3
Max.
+150
±25
120
230
0.8
0 7
2.5
+1
31
60
70
5
5
Unit
KHz
mA
mA
mV
kΩ
°C
dB
dB
µV
µV
dB
dB
dB
ns
W
W
W
W
W
W
W
W
W
%
%
Ω
V
A
V
V
V
V