TDA7490L_05 Datasheet, PDF (5/11 Pages) STMicroelectronics – 20W + 20W STEREO CLASS-D AMPLIFIER 40W MONO IN BTL

TDA7490L
Table 5. Electrical Characteristics
(Refer to the test circuit, V_CC = ±19V; R_L = 8Ω; Demod. filter L = 30µH, C = 220nF; f = 1KHz; fsw = 200kHz;
T_amb = 25°C unless otherwise specified.)
Symbol
V_S
I_q
V_OS
P_o
Parameter
Supply Range
Total Quiescent Current
Output Offset Voltage
Output Power
P_o(BTL) Output Power in Bridge
Configuration
P_o(1) ^{Output Power}
P_D Maximum Dissipated Power
η Efficiency (')
THD Total Harmonic Distortion
I_max Overcurrent Protection
Threshold
T_j Thermal Shut-down Junction
Temperature
G_v Closed Loop Gain
∆G_v ^{(3) Gain Matching}
e_N Total Input Noise
R_G = 50Ω
C_T Cross talk
R_i Input Resistance
SVR Supply Voltage Rejection
V_{rmax Overvoltage Threshold} ⁽⁵⁾
T_r, T_t Rising and Falling Time
R_DSON Power Transistor on Resistance
Fsw ^{(4) Switching Frequency Range}
MUTE & STAND-BY FUNCTIONS
V_ST-BY Stand-by range
V_MUTE Mute Range
V_PLAY Play Range
A_MUTE Mute Attenuation
I_qST-BY Quiescent Current @ Stand-by
Test Condition
R_L = ∞ no LC filter
THD = 10%
THD= 1%
V_S = ±20V; R_L = 16Ω
THD = 10%
THD=1%
V_S =±15.5V; R_L = 8Ω
THD = 10%
THD=1%
R_L = 4Ω Vcc=±13.5V
THD = 10%
THD=1%
V_CC = ±19V; R_L = 8Ω
Pο = 20W + 20W; THD = 10%
P_o = 20W + 20W
R_L = 8Ω; Po = 1 W
R_L = 0
A Curve
f = 20Hz to 22KHz
f = 1 KHz, P_o = 1W
f = 100Hz; V_r = 0.5
Min. Typ. Max. Unit
±10
±25
V
70
120 mA
-150
+150 mV
20
W
16
W
40
W
32
W
40
W
32
W
18
W
14.5
W
5.6
W
86
%
0.1
%
5
A
150
°C
29
30
31
dB
-1
+1
dB
7
µV
12
µV
55
dB
20
30
kΩ
60
dB
55
60
V
50
70
ns
0.4
0.8
Ω
100 200 230 KHz
0
07
V
1.7
2.5
V
4
5
V
55
60
dB
3
5
mA
*: Po = measured across the load using the following inductor: COIL58120 MPPA 2 (magnectics) TURNS= 20∅ 1 mm
(1) L = 15µH, C = 470nF
(3) ∆Gv is intended with R2, R17, R5, R9 1% precision
(4) Fsw = 0.25 · (1/(300ns + R13 · (C17 + 76pF) . 0.85)
(5) V_RMAX = (+Vcc) - (-Vcc) when V_R ≥V_RMAX the device goes in Stand-By mode
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