IC AMP AUDIO 150W AB 27FLEXIWATT

TDA7575

Manufacturer Part NumberTDA7575
DescriptionIC AMP AUDIO 150W AB 27FLEXIWATT
ManufacturerSTMicroelectronics
TypeClass AB
TDA7575 datasheets
 


Specifications of TDA7575

Output Type1-Channel (Mono) or 2-Channel (Stereo)Max Output Power X Channels @ Load150W x 1 @ 1 Ohm; 75W x 2 @ 2 Ohm
Voltage - Supply8 V ~ 18 VFeaturesDifferential Inputs, I²C, Mute, Short-Circuit and Thermal Protection, Standby
Mounting TypeThrough HolePackage / Case27-Flexiwatt (bent and staggered leads)
Operational ClassClass-ABOutput Power (typ)150x1@1Ohm/75x2@2OhmW
Audio Amplifier FunctionSpeakerTotal Harmonic Distortion0.02@1Ohm@30W%
Single Supply Voltage (typ)9/12/15VDual Supply Voltage (typ)Not RequiredV
Power Supply RequirementSinglePower Dissipation86W
Rail/rail I/o TypeNoSingle Supply Voltage (min)8V
Single Supply Voltage (max)18VDual Supply Voltage (min)Not RequiredV
Dual Supply Voltage (max)Not RequiredVOperating Temp Range-55C to 150C
Operating Temperature ClassificationMilitaryMountingSurface Mount
Pin Count36Package TypePSOP
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
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MULTIFUNCTION DUAL BRIDGE POWER AMPLIFIER
WITH INTEGRATED DIGITAL DIAGNOSTICS
DMOS POWER OUTPUT
NON-SWITCHING HI-EFFICIENCY
SINGLE-CHANNEL 1
DRIVING CAPABILITY
HIGH OUTPUT POWER CAPABILITY 2x28W/
4 @ 14.4V, 1KHZ, 10% THD, 2x40W/4 EIAJ
MAX. OUTPUT POWER 2x75W/2
SINGLE-CHANNEL 1
DRIVING CAPABILITY
– 84W UNDISTORTED POWER
2
– FULL I
C BUS DRIVING WITH 4 ADDRESS
POSSIBILITIES:
– ST-BY, PLAY/MUTE, GAIN 12/26dB, FULL
DIGITAL DIAGNOSTIC
POSSIBILITY TO DISABLE THE I2C
DIFFERENTAL INPUTS
FULL FAULT PROTECTION
DC OFFSET DETECTION
TWO INDEPENDENT SHORT CIRCUIT
PROTECTIONS
CLIPPING DETECTOR PIN WITH
SELECTABLE THRESHOLD (2%/10%)
ST-BY/MUTE PINS
DESCRIPTION
The TDA7575 is a new BCD technology DUAL
BRIDGE type of car radio amplifier in PowerSO36
and Flexiwatt27 packages specially intended for car
radio applications. Thanks to the DMOS output stage
BLOCK DIAGRAM
IN1+
IN1-
IN2+
IN2-
October 2003
MULTIPOWER BCD TECHNOLOGY
1x150W/1
the TDA7575 has a very low distortion allowing a
clear powerful sound. Among the features, its superi-
or efficiency performance coming from the internal
exclusive structure, makes it the most suitable device
to simplify the thermal management in high power
sets.The dissipated output power under average lis-
tening condition is in fact reduced up to 50% when
compared to the level provided by conventional class
AB solutions.
This device is equipped with a full diagnostic array
that communicates the status of each speaker
through the I
bility of driving loads down to 1 paralleling the outputs
into a single channel. It is also possible to disable the
2
I
C and control the TDA7575 by means of the usual ST-
BY and MUTE pins.
V
S
ADDRESS
A
B
CLK
DATA
VCC
CLIP
2
I
CBUS
DETECTOR
SHORT CIRCUIT
PROTECTION
SHORT CIRCUIT
PROTECTION
SVR
S_GND
PW_GND
TAB
ST-BY/HE
TDA7575
MOSFET OUTPUT POWER STAGE
PowerSO36 (Slug up)
ORDERING NUMBER: TDA7575PD
2
C bus. The TDA7575 has also the possi-
CD_OUT
OUT1+
OUT1-
OUT2+
OUT2-
2
I
C EN
1
MUTE
D01AU1269
1/17

TDA7575 Summary of contents

  • Page 1

    ... This device is equipped with a full diagnostic array that communicates the status of each speaker through the I bility of driving loads down to 1 paralleling the outputs into a single channel also possible to disable the and control the TDA7575 by means of the usual ST- BY and MUTE pins ADDRESS A B ...

  • Page 2

    ... TDA7575 PIN CONNECTION (Top view) OUT1+ OUT1+ PWGND PWGND OUT1- OUT1- OUT2- OUT2- PWGND PWGND OUT2+ OUT2+ ABSOLUTE MAXIMUM RATINGS Symbol V Operating Supply Voltage Supply Voltage S V Peak Supply Voltage (for t = 50ms) peak V CK pin Voltage CK V Data Pin Voltage DATA ...

  • Page 3

    ... O HE MODE 4- 1-12W 10kHz MODE Single channel configuration (1 pin >2.5V 4-30W 600 600 ; Gv = 26dB filter 20 to 22kHz Rg = 600 ; Gv = 12dB filter 20 to 22kHz f = 100Hz to 10kHz 1Vpk 600 g (-3dB) Mute & Play V = 1Vpk-pk TDA7575 Min. Typ. Max. Unit 130 200 125 130 140 ...

  • Page 4

    ... TDA7575 ELECTRICAL CHARACTERISTCS: (continued) Symbol Parameter V Maximum common mode input MC level SR Slew Rate V Mute/Unmute Transient PM V Mute/Stand-by Transient TO T Turn on Delay ON T Turn off Delay OFF V St-By pin for St-By OFF V St-By pin for standard bridge SB V St-By pin for Hi-eff ...

  • Page 5

    ... Shorted Load det. Test Condition CD on; V < 300mV CD D0 (IB1 (IB1 Power Amplifier in st-by condition Power Amplifier in st-by Power Amplifier in Mute or Play condition, one or more short circuits protection activated Pow. Amp. mode Line Driver mode TDA7575 Min. Typ. Max. Unit 1 mA 0.8 1.3 2 ...

  • Page 6

    ... I C BUS INTERFACE Data transmission from microprocessor to the TDA7575 and viceversa takes place through the 2 wires I face, consisting of the two lines SDA and SCL (pull-up resistors to positive supply voltage must be connected). Data Validity As shown by fig. 1, the data on the SDA line must be stable during the high period of the clock. ...

  • Page 7

    ... In order to implement this feature, outputs are to be connected on the board as follows: OUT1+ (PIN35 and PIN36) shorted to OUT2+ (PIN19 and PIN20) OUT1- (PIN28 and PIN29) shorted to OUT2- (PIN26 and PIN27). 2 CBUS DATA LINE CHANGE STABLE, DATA DATA VALID ALLOWED 2 CBUS D99AU1032 2 3 D99AU1033 D99AU1031 2 I CBUS STOP ACKNOWLEDGMENT FROM RECEIVER TDA7575 7/17 ...

  • Page 8

    ... STD MODE: 3.5V < stby (PIN5) < 5 – HE MODE: Vstby (PIN5) > 7V – PLAY MODE: Vmute (pin 4) >3.5V For both STD and HE MODE the play/mute mode can be set acting on Vmute pin. 8/ PIN (PIN16) and control the TDA7575 by means of the C PIN must be set as follows bus interface short I 2 ...

  • Page 9

    ... SOFTWARE SPECIFICATIONS All the functions of the TDA7575 are activated by I The bit 0 of the "ADDRESS BYTE" defines if the next bytes are write instruction (from P to TDA7575) or read instruction (from TDA7575 to P). ADDRESS SELECTION R R the P sends 2 "Instruction Bytes": IB1 and IB2. ...

  • Page 10

    ... TDA7575 If R the TDA7575 sends 2 "Diagnostics Bytes" DB1 and DB2. DB1 D7 Thermal warming (if Tchip Diag. cycle not activated or not terminated ( Diag. cycle terminated ( Channel 1 D4 Turn-on diagnostic ( Permanent diagnostic ( Channel 1 D3 Normal load ( Short load ( Channel 1 Turn-on diag.: No open load ( Offset diag.: No output offset ( ...

  • Page 11

    ... ACK ACK IB1 ACK X000XXXX ACK IB1 ACK X0XXXXXX ACK IB1 ACK XX1XX1XX ACK DB1 ACK 2 C bus request. Detectable output faults are: TDA7575 IB2 ACK STOP DB2 ACK STOP IB2 ACK STOP XXX1XX1X IB2 ACK STOP XXX0XXXX IB2 ACK STOP ...

  • Page 12

    ... TDA7575 Afterwards, when the Amplifier is biased, the PERMANENT diagnostic takes place. The previous Turn On state is kept until a short appears at the outputs. Fig A: Turn - On diagnostic: working principle Isource Isink Fig. B and C show SVR and OUTPUT waveforms at the turn-on (stand-by out) with and without TURN-ON DI- AGNOSTIC ...

  • Page 13

    ... The following additional features are provided: – OUTPUT OFFSET DETECTION The TDA7575 has 2 operating statuses: 1) RESTART mode. The diagnostic is not enabled. Each audio channel operates independently from each oth- er. If any of the a.m. faults occurs, only the channel(s) interested is shut down. A check of the output status is made every 1 ms (fig ...

  • Page 14

    ... TDA7575 relevant data are stored inside the device and can be read by the microprocessor. When one cycle has terminated, the next one is activated throughout the car-radio operating time. – To check the status of the device a sampling system is needed. The timing is chosen at microproces- sor level (over than half a second is recommended). ...

  • Page 15

    ... OFFSET ENABLE - 30ms - I 2 (repeat I C reading until high-offset message disappears). S. GND (sk GND GND S. GND read (repeat until All faults disappear reading TDA7575 2 C reading and faults removal, S. Across L. Open L. S. GND S. GND S. GND Open L. (*) Across L. N.A. / Open L. (*) new cycle will be able to start, 15/17 ...

  • Page 16

    ... TDA7575 mm DIM. MIN. TYP. MAX. A 3.25 3.5 0.128 A2 3.3 A4 0.8 1 0.031 A5 0 0.075 b 0.22 0.38 0.008 c 0.23 0.32 0.009 D 15.8 16 0.622 D1 9.4 9 13.9 14.5 0.547 E1 10.9 11.1 0.429 E2 2.9 E3 5.8 6.2 0.228 E4 2.9 3.2 0.114 e 0.65 e3 11. 0.075 H 15.5 15 ...

  • Page 17

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