TDA7851L Electrical specifications
Doc ID 022520 Rev 3 7/15
3 Electrical specifications
3.1 Absolute maximum ratings
3.2 Electrical characteristics
Refer to the test and application diagram, V
S
= 14.4 V; R
L
= 4 ; R
g
= 600 ; f = 1 kHz;
T
amb
= 25 °C; unless otherwise specified.
Table 3. Absolute maximum ratings
Symbol Parameter Value Unit
V
S
Operating supply voltage 18 V
V
S (DC)
DC supply voltage 28 V
V
S (pk)
Peak supply voltage (for t = 50 ms) 50 V
I
O
Output peak current
Non repetitive (t = 100 µs)
Repetitive (duty cycle 10 % at f = 10 Hz)
10
9
A
A
P
tot
Power dissipation T
case
= 70 °C 85 W
T
j
Junction temperature 150 °C
T
amb
Operating temperature range -40 to 105 °C
T
stg
Storage temperature -55 to 150 °C
Table 4. Electrical characteristics
Symbol Parameter Test condition Min. Typ. Max. Unit
V
S
Supply voltage range - 8 - 18 V
I
q1
Quiescent current R
L
= 100 150 300 mA
V
OS
Output offset voltage Play mode / Mute mode -60 - +60 mV
dV
OS
During mute on/off output offset
voltage
ITU R-ARM weighted
see Figure 18
-10 - +10 mV
During standby on/off output offset
voltage
-10 - +10 mV
G
v
Voltage gain - 25 26 27 dB
dG
v
Channel gain unbalance - ±1 dB
P
o
Output power
V
S
= 14.4 V; THD = 10 %
V
S
= 14.4 V; THD = 1 %
25
-
28
22
-
W
W
V
S
= 14.4 V; THD = 10 %, 2
V
S
= 14.4 V; THD = 1 %, 2
-
48
38
-
W
W
P
o max.
Max. output power
(1)
V
S
= 14.4 V; R
L
= 4
V
S
= 14.4 V; R
L
= 2
V
S
= 15.2 V; R
L
= 4
-
45
75
48
-
W
W
W
Electrical specifications TDA7851L
8/15 Doc ID 022520 Rev 3
THD Distortion P
o
= 4 W - 0.01 0.05 %
e
No
Output noise
"A" Weighted
Bw = 20 Hz to 20 kHz
-
35
50
-
100
µV
µV
SVR Supply voltage rejection f = 100 Hz; V
r
= 1 Vrms 50 70 - dB
f
ch
High cut-off frequency P
O
= 0.5 W 100 300 - kHz
R
i
Input impedance - 70 100 130 k
C
T
Cross talk
f = 1 kHz P
O
= 4 W
f = 10 kHz P
O
= 4 W
60
-
70
60
-
-
dB
dB
I
SB
Standby current consumption
V
St-b
y
= 1.2 V - - 20 µA
V
St-b
y
= 0 - - 10 µA
I
pin5
Standby pin current V
St-b
y
= 1.2 V to 2.6 V - - ±1 µA
V
SB out
Standby out threshold voltage (Amp: ON) 2.6 - - V
V
SB in
Standby in threshold voltage (Amp: OFF) - - 1.2 V
A
M
Mute attenuation P
Oref
= 4 W 80 90 - dB
V
M out
Mute out threshold voltage (Amp: Play) 2.6 - - V
V
M in
Mute in threshold voltage (Amp: Mute) - - 1.2 V
V
AM in
V
S
automute threshold
(Amp: Mute)
Att
80 dB; P
Oref
= 4 W
(Amp: Play)
Att < 0.1 dB; P
O
= 0.5 W
6.7
-
7
7.5
-
8
V
V
Ipin23 Muting pin current
V
MUTE
= 1.2 V
(Sourced current)
71218µA
V
MUTE
= 2.6 V -5 - 18 µA
Clipping detector
CD
LK
Clip detector high leakage current Cd off - 0 1 µA
CD
SAT
Clip detector saturation voltage DC On; I
CD
= 1 mA - 0.2 0.4 V
CD
THD
Clip detector THD level - - 2 - %
1. Saturated square wave output.
Table 4. Electrical characteristics (continued)
Symbol Parameter Test condition Min. Typ. Max. Unit
TDA7851L Electrical specifications
Doc ID 022520 Rev 3 9/15
3.3 Electrical characteristic curves
Figure 4. Quiescent current vs. supply
voltage
Figure 5. Output power vs. supply voltage
(R
L
= 4 )
Figure 6. Output power vs. supply voltage
(R
L
= 2 )
Figure 7. Distortion vs. output power
(R
L
=4)
Figure 8. Distortion vs. output power
(R
L
=2)
Figure 9. Distortion vs. frequency (R
L
= 4 )
'!0'03








)
D
M!
6
S
6
2
,

c
6
I

'!0'03















        
0
O
7
6
S
6
2
,
7
F
+(Z
0OMAX
4($
4($
'!0'03













        
6
S
6
0O7
0OMAX
4($
4($
2
,
7
F+(Z
'!0'03




  
0
O
7
4($
6
S
6
2
,
7
F+(Z
F+(Z
'!0'03




  
0
O
7
4($
6
S
6
2
,
7
F+(Z
F+(Z
'!0'03




    
F(Z
4($
6
S
6
2
,
7
0
O
7

TDA7851L

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Audio Amplifiers 4 x 50 W MOSFET Quad Bridge Pwr Amplifier
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet