STMicroelectronics TDA7386 Schematic [ru]
®
4 x 40W QUAD BRIDGE CAR RADIO AMPLIFIER
HIGH OUTPUT POWER CAPABILITY:
4 x 45W/4Ω MAX.
4 x 40W/4Ω EIAJ
4 x 28W/4Ω @ 14.4V, 1KHz, 10%
4 x 24W/4Ω @ 13.2V, 1KHz, 10%
LOW DISTORTION
LOW OUTPUT NOISE
ST-BY FUNCTION
MUTE FUNCTION
AUTOMU TE A T MI N. SUPP LY VO LTA GE D E-
TECTION
LOW EXTERNAL COMPONE NT COUNT:
– INTERNALLY FIXED GAIN (26dB)
– NO EXTERNAL COMPENSATION
– NO BOOTSTRAP CAPACITORS
PROTECTIONS:
OUTPUT SHORT CIRCUI T TO GND, TO VS,
ACROSS T HE LOAD
VERY INDUCTIVE L O ADS
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMAL LIMITER
LOAD DUMP VOLTAGE
FORTUITOUS OPEN GND
BLOCK AND APPLICATION DIAGRAM
TDA7386
FLEXIWATT25
ORDERING NUMBER: TDA7386
REVERSED BATT ERY
ESD
DESCRIPTION
The TDA7386 is a new technology class AB
Audio Power Amplifier in Flexiwatt 25 package
designed for high end car radio applications.
Thanks to the fully complementary PNP/NPN output configuration the TDA7386 allows a rail to rail
output voltage swing with no need of bootstrap
capacitors. The extremely reduced components
count allows very compact sets.
November 2001
IN1
IN2
IN3
IN4
Vcc1 Vcc2
ST-BY
MUTE
0.1µF
0.1µF
0.1µF
0.1µF
AC-GND
0.47µF47µF
SVR TAB S-GND
100nF470µF
N.C.
OUT1+
OUT1PW-GND
OUT2+
OUT2PW-GND
OUT3+
OUT3PW-GND
OUT4+
OUT4PW-GND
D99AU1018
1/9
TDA7386
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
CC (DC)
V
CC (pk)
P
T
CC
I
O
tot
T
j
stg
Operating Supply Voltage 18 V
DC Supply Voltage 28 V
Peak Supply Voltage (t = 50ms) 50 V
Output Peak Current:
Repetitive (Duty Cycle 10% at f = 10Hz)
Non Repetitive (t = 100µs)
Power dissipation, (T
= 70°C) 80 W
case
4.5
5.5
Junction Temperature 150 °C
Storage Temperature – 55 to 150 °C
A
A
PIN CONNECTION
(Top view)
1 25
TAB
OUT2-
P-GND2
ST-BY
CC
V
OUT2+
OUT1-
P-GND1
SVR
OUT1+
IN1
IN2
IN4
S-GND
IN3
OUT3+
AC-GND
OUT3-
P-GND3
CC
V
MUTE
OUT4+
D94AU159A
OUT4-
P-GND4
HSD
THERMAL DATA
Symbol Parameter Value Unit
Thermal Resistance Junction to Case Max. 1 °C/W
2/9
R
th j-case
TDA7386
ELECTRICAL CHARACTERISTICS
= 14.4V; f = 1KHz; Rg = 600Ω; RL = 4Ω; T
(V
S
amb
= 25°C;
Refer to the test and application diagram, unless otherwise specified.)
Symbol Parameter Test Condition Min. Typ. Max. Unit
I
q1
V
OS
dV
OS
G
v
dG
P
o
P
o EIAJ
P
o max.
THD Distortion Po = 4W 0.04 0.15 %
eNo Output Noise "A" Weighted
SVR Supply Voltage Rejection f = 100Hz; V
f
ch
R
C
T
I
SB
I
pin4
V
SB out
V
SB in
A
M
V
M out
V
M in
V
AM in
I
pin22
(*) Saturated square wave output.
Quiescent Current RL = ∞ 190 350 mA
Output Offset Voltage Play Mode ±80 mV
During mute ON/OFF output
offset voltage
Voltage Gain 25 26 27 dB
Channel Gain Unbalance ±1dB
v
Output Power VS = 13.2V; THD = 10%
V
= 13.2V; THD = 0.8%
S
V
= 14,4V; THD = 10%
S
EIAJ Output Power (*) VS = 13.7V 37.5 40 W
Max. Output Power (*) VS = 14.4V 43 45 W
Bw = 20Hz to 20KHz
= 1Vrms 50 75 dB
r
High Cut-Off Frequency PO = 0.5W 80 200 KHz
Input Impedance 70 100 KΩ
i
Cross Talk f = 1KHz PO = 4W
= 4W
O
St-By Current Consumption V
f = 10KHz P
= 1.5V 50 µA
St-By
St-by pin Current VSt-By = 1.5V to 3.5V ±10 µA
St-By Out Threshold Voltage (Amp: ON) 3.5 V
St-By in Threshold Voltage (Amp: OFF) 1.5 V
Mute Attenuation P
= 4W 80 90 dB
Oref
Mute Out Threshold Voltage (Amp: Play) 3.5 V
Mute In Threshold Voltage (Amp: Mute) 1.5 V
VS Automute Threshold (Amp: Mute)
Att ≥ 80dB; P
Oref
= 4W
(Amp: Play)
Muting Pin Current V
Att < 0.1dB; P
= 1.5V
MUTE
= 0.5W 7.6
O
(Sourced Current)
V
= 3.5V -5 20 µA
MUTE
±80 mV
22
16.5
26
60 70
24
18
28
50
70
60
70
100
–
–
6.5
8.5
51120µA
W
W
W
µV
µV
dB
dB
V
V
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