ST TDA7565 User Manual

TDA7565

Quad power amplifier with integrated step-up converter

Features

■Multipower BCD technology

■DMOS power output

■Non-switching high efficiency amplifier

■Switching high efficiency voltage converter

■High output power capability:

–4 x 41 W max @ Vs = 14.4 V

–4 x 59 W @ Vs = 14.4 V and PWM = 17.5 V

■Full I2C bus driving:

–Standby

–Independent front/rear soft play/mute

–Selectable gain 26 dB - 12 dB (for low noise line output function)

–High efficiency enable/disable

–Voltage converter enable/disable

–Regulated voltage selection

–Switching frequency selection

■Hardware mute function

■Full fault protection

■DC offset detection

■Four independent short circuit protection

■Clipping detector with selectable threshold (1 % / 10 %) via I2C bus

Table 1. Device summary

Flexiwatt27

Description

The TDA7565 is a new BCD technology quad bridge type of car radio amplifier in Flexiwatt27 package specially intended for car radio applications.

Thanks to the DMOS output stage the TDA7565 has a very low distortion allowing a clear powerful sound.

The built-in voltage converter control block assures a very high output power with an extremely low number of added components.

Furthermore, the converter makes the TDA7565 compliant to the most recent OEM specifications for low voltage operation (so called 'start-stop' battery profile during engine stop), helping car manufacturers to reduce the overall emissions and thus contributing to environment protection.

Order code	Package	Packing
TDA7565	Flexiwatt27	Tube

February 2010

Doc ID 9800 Rev 4

1/19

www.st.com

Contents	TDA7565

Contents

1	Block and pin connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . .		. 5
2	Electrical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		6
	2.1	Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
	2.2	Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
	2.3	Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
3	I2C bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		10
	3.1	Data validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	10
	3.2	Start and stop conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	10
	3.3	Byte format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	10
	3.4	Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	10
4	Software specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		12
5	Examples of bytes sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		15
6	Low voltage "start-stop" operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .		16
7	Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		17
8	Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		18

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TDA7565	List of tables

List of tables

Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table 2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Table 3. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Table 4. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Table 5. Chip address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Table 6. IB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Table 7. IB2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Table 8. DB1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Table 9. DB2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Table 10. DB3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Table 11. DB4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Table 12. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Doc ID 9800 Rev 4

3/19

List of figures	TDA7565

List of figures

Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 2. Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 3. Demoboard schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 4. Data validity on the I2C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 5. Timing diagram on the I2C bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 6. Acknowledge on the I2C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 7. Worst case condition for a start-stop system diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 8. Flexiwatt27 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . 17

4/19	Doc ID 9800 Rev 4

TDA7565	Block and pin connection diagrams

1 Block and pin connection diagrams

Figure 1. Block diagram

											VS
MUTE	CLK	DATA	VCC1			VCC2		CC GND
		I2C BUS					CLIP	VOLTAGE		MG	VOLTAGE
											CONVERTER
								CONVERTER
							DETECTOR				EXTERNAL
	MUTE1 MUTE2							CONTROL
											CIRCUIT
F
IN RF										OUT RF+
			12/26dB
										OUT RF-
							SHORT CIRCUIT
R							PROTECTION
IN RR										OUT RR+
			12/26dB
										OUT RR-
							SHORT CIRCUIT
F							PROTECTION
IN LF										OUT LF+
			12/26dB
										OUT LF-
							SHORT CIRCUIT
R							PROTECTION
IN LR										OUT LR+
			12/26dB
										OUT LR-
							SHORT CIRCUIT
							PROTECTION
SVR	AC_GND		RF	RR	LF	LR	TAB	S_GND
					PW_GND				D00AU1232A

Figure 2. Pin connection (top view)

27	MUTE
26	DATA
25	PW_GND RR
24	OUT RR-
23	CK
22	OUT RR+
21	VCC2
20	OUT RF-
19	PW_GND RF
18	OUT RF+
17	AC_GND
16	IN RF
15	IN RR
14	S_GND
13	IN LR
12	IN LF
11	SVR
10	OUT LF+
9	PW_GND LF
8	OUT LF-
7	VCC1
6	OUT LR+
5	CC GND
4	OUT LR-
3	PW_GND LR
2	MG
1	TAB
	D00AU1233A

Doc ID 9800 Rev 4

5/19

Electrical specification	TDA7565

2 Electrical specification

2.1Absolute maximum ratings

Table 2.	Absolute maximum ratings
Symbol	Parameter	Value	Unit
Vopc OFF	Operating supply voltage, converter off	18	V
Vopc ON	Operating supply voltage, converter on	25	V
VS	DC supply voltage	28	V
Vpeak	Peak supply voltage (for t = 50 ms)	50	V
VCK	CK pin voltage	6	V
VDATA	Data pin voltage	6	V
IO	Output peak current (not repetitive t = 100 µs)	8	A
IO	Output peak current (repetitive f > 10 Hz)	6	A
Ptot	Power dissipation Tcase = 70 °C	80	W
Tstg, Tj	Storage and junction temperature	-55 to 150	°C

2.2Thermal data

Table 3.	Thermal data
Symbol	Description		Value	Unit
Rth j-case	Thermal resistance junction to case	Max.	1	°C/W

2.3Electrical characteristics

Refer to the test circuit, VS = 14.4 V; RL = 4 Ω; f = 1 kHz; voltage converter disabled (VCOff); Tamb = 25 °C; unless otherwise specified.

	Table 4.	Electrical characteristics
	Symbol	Parameter	Test condition	Min.	Typ.	Max.	Unit
	Power amplifier
	VS	Supply voltage range	-	8	-	18	V
	Id	Total quiescent drain current	-	-	250	300	mA
	Id	Total quiescent drain current	-	-	350	-	mA
		(VCon)
		Output power	Max power(1)	-	41	-	W
	PO	(VCoff)	THD = 10 %	22	27	-	W
		V = 14.4 V	THD = 1 %	18	22		W

6/19	Doc ID 9800 Rev 4