TDA7375A Fast Delivery |IC PHOENIX CO.,LIMITED

TDA7375A ,2 x 37W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIOTDA7375A 2 x 37W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIOHIGH OUTPUT POWER CAPABILITY2 x 43W/4Ω MAX ..
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TDA7375A
2 x 37W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO
TDA7375Ax 37W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO
HIGH OUTPUT POWER CAPABILITYx 43W/4Ω MAXx 37W/4Ω EIAJx 26W/4Ω @14.4V, 1KHz, 10%x 7W/4Ω @14.4V,1KHz, 10%x 12W/2Ω @14.4V, 1KHz, 10%
MINIMUM EXTERNAL COMPONENTS
COUNT: NO BOOTSTRAP CAPACITORS NO BOUCHEROT CELLS INTERNALLY FIXED GAIN (26dB BTL)
ST-BY FUNCTION (CMOS COMPATIBLE) AUDIBLE POP DURING ST-BY OPERA-
TIONS
DIAGNOSTICFACILITIES CLIPDETECTOR OUTTO GND SHORT OUTTOVS SHORT SOFT SHORT AT TURN-ON THERMAL SHUTDOWN PROXIMITY
Protections:
OUPUT AC/DC SHORT CIRCUIT TO GND
–TOVS ACROSS THE LOAD
SOFT SHORT AT TURN-ON
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMAL LIMITER
LOAD DUMP VOLTAGE SURGE
VERYINDUCTIVE LOADS
FORTUITOUS OPEN GND
REVERSEDBATTERY
ESD
October 1998
Multiwatt15V
BLOCK DIAGRAM
ORDERING NUMBERS: TDA7375AV
TDA7375AH
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DESCRIPTION
The TDA7375Aisa new technology class AB car
radio amplifier able to work either in DUAL
BRIDGEor QUAD SINGLE ENDED configuration.
The exclusive fully complementary structureof the
output stage and the internally fixed gain guaran-
tee the highest power performances with ex-
tremely reduced component count. The on board
clip detector simplifies gain compression opera-
tion. The fault diagnostic makesit possibleto de-
tect mistakes during car radio set assembly and
wiringin the car.
GENERAL STRUCTURE
ABSOLUTEMAXIMUM RATINGS
Symbol Parameter Value Unit
Vop Operating Supply Voltage 18 V DC Supply Voltage 28 V
Vpeak Peak Supply Voltage(fort= 50ms) 40 V Output Peak Current (not repitivet= 100μs) 4.5 A Output Peak Current (repetitivef> 10Hz) 3.5 A
Ptot Power Dissipation Tcase =85°C36 W
Tstg,Tj Storage and Junction Temperature -40to 150 °C
THERMAL DATA
Symbol Description Value Unit
Rth j-case Thermal Resistance Junction-case Max 1.8 °C/W
PIN CONNECTION (Topview)
TDA7375A
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ELECTRICAL CHARACTERISTICS (Referto the test circuit, VS= 14.4V;RL =4Ω;f= 1KHz;
Tamb =25°C,unlessotherwise specified
Symbol Parameter Test Condition Min. Typ. Max. Unit Supply Voltage Range 8 18 V Total Quiescent Drain Current RL=∞ 150 mA
VOS Output Offset Voltage 150 mV Output Power THD= 10%;RL =4Ω
Bridge
Single Ended
Single Ended,RL =2Ω
6.5max Max. Output Power (***) VS= 14.4V, Bridge 37 43 W EIAJ EIAJ Output Power (***) VS= 13.7V, Bridge 33 37 W
THD Distortion RL =4Ω
Single Ended,PO= 0.1to 4W
Bridge,PO=0.1to 10W
0.03 0.3 Cross Talk f= 1KHz Single Ended= 10KHz Single Ended= 1KHz Bridge= 10KHz Bridge
RIN Input Impedance Single Ended
Bridge Voltage Gain Single Ended
Bridge Voltage Gain Match 0.5 dB
EIN Input Noise Voltage Rg=0;”A” weighted, S.E.
Non Inverting Channels
Inverting Channels
Bridge= 0;22Hzto 22KHz 3.5 μV
SVR Supply Voltage Rejection Rg=0;f= 300Hz 50 dB
ASB Stand-by Attenuation PO =1W 80 90 dB
ISB ST-BY Current Consumption VST-BY=0to 1.5V 100 μA
VSB ST-BYIn Threshold Voltage 1.5 V
VSB ST-BY Out Threshold Voltage 3.5 V
Ipin7 ST-BY Pin Current Play ModeVpin7 =5V 50 μA
Max Driving Current Under
Fault(*)
5mA
Icdoff Clipping Detector
Output Average Current= 1% (**) 90 μA
Icdon Clipping Detector
Output Average Current= 5% (**) 160 μA
Vsatpin10 Voltage Saturationonpin10 Sink Currentat Pin10= 1mA 0.7 V
(*) See built-inS/C protection description
(**)Pin10 Pulled-upto5V with10KΩ;RL =4Ω
(***) Saturatedsquare wave output.
TDA7375A
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0.22μFDIAGNOSTICS7
C10 2200μF
D94AU063A
C7
10μF
10KR1
ST-BYFL 0.22μFFR 5 0.22μFINRL 0.22μFRR 11 47μF
C5
1000μF
C6
100nF
C92200μF
C11 2200μF
C12 2200μF
OUTFL
OUTFR
OUTRL
OUTRR89 10
STANDARD TEST AND APPLICATION CIRCUIT
Figure1: Quad Stereo 0.47μF
DIAGNOSTICS7
D94AU064A
C5
10μF
10KR1
ST-BYL 0.47μFINR 47μF
C3
1000μF
C4
100nF
OUTL 10
OUTR
Figure2: Double Bridge
0.22μF
DIAGNOSTICS7
D94AU065A
10μF
10K
ST-BYL
0.47μF BRIDGE 12
47μF
1000μF100nF
OUTL 10
OUT
BRIDGE11
0.22μFL OUTR
2200μF
2200μF
Figure3: Stereo/Bridge
Note:
The output decoupling capacitors
(C9,C10,C11,C12)could bereducedto
1000μFif the2Ω operationis not
required.
TDA7375A
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Figure4: P.C. Board and Component Layoutof the fig.1 (1:1 scale).
Figure5: P.C. Board and Component Layoutof the fig.2 (1:1 scale).
TDA7375A
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Figure6: Quiescent Drain Current vs. Supply
Voltage(Single Ended and Bridge).
Figure8: Output Power vs. Supply Voltage
Figure 10: OutputPower vs. SupplyVoltage
Figure7: Quiescent OutputVoltage vs. Supply
Voltage (SingleEnded and Bridge).
Figure9: Output Power vs. Supply Voltage
Figure 11: Distortion vs. Output Power
TDA7375A
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Figure 12: Distortion vs. Output Power
Figure 14: Cross-talk vs. Frequency
Figure16: SupplyVoltage Rejectionvs.Frequency
Figure 13: Distortion vs. Output Power
Figure 15: Supply Voltage Rejection vs. Fre-
quency
Figure 17: Stand-byAttenuation vs. Threshold
Voltage
TDA7375A
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Partno	Mfg	Dc	Qty	Available	Descript
TDA7375A	ST	N/a	196	avai	2 x 37W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO