ST TDA7292 User Manual

TDA7292

40 W + 40 W stereo amplifier with mute and standby

Datasheet − production data

Features

■Wide supply voltage range (up to ± 33 V)

■Split supply

■High output power

■40 W + 40 W into 8 Ω

with VS = ±26 V and THD = 10%

■No “pop” at turn on/off

■Mute (“pop”-free)

■Standby feature (low Iq)

■Short-circuit protection

■Thermal overload protection

Multiwatt11

Description

The TDA7292 is a class-AB dual audio power amplifier assembled in a Multiwatt package.

It has been specifically designed for high-quality sound applications such as hi-fi music centers and stereo TV sets.

Table 1.	Device summary
Order code			Operating temp. range		Package		Packaging
TDA7292			0° to 70° C		Multiwatt11		Tube
Figure 1.	Applications circuit
					+VS
	15K	1μF				1000μF
			MUTE/		3
			ST-BY	5
			IN (L)	7	4	OUT (L)
				+
			1μF	-		18K	4.7Ω
					8	IN- (L)	RL (L)
							100nF
		15K	4718K
				9			560Ω
			GND
+5V	μP				10	IN- (R)	560Ω
							18K
			1μF	-	2	OUT (R)
			IN (R)	11
				+			4.7Ω
				1	6
							RL (R)
					-VS		100nF
			D94AU085	1000μF
February 2012				Doc ID 15775 Rev 5			1/22

This is information on a product in full production.

www.st.com

Contents	TDA7292

Contents

1	Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		. 5
2	Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		. 6
	2.1	Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
	2.2	Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
	2.3	Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
3	Characterization curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		8
4	Mute and standby modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		13
5	Applications information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		14
	5.1	Applications with dual supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	14
	5.2	Applications with single supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	17
6	Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		20
7	Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		21

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TDA7292	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 specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Table 5. Mute and standby thresholds on pin 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Table 6. Recommended values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 7. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

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List of figures	TDA7292

List of figures

Figure 1.	Applications circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 1
Figure 2.	Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 5
Figure 3.	Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 8
Figure 4.	Frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 8
Figure 5.	Output power vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 9
Figure 6.	Output power vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 9
Figure 7.	Output power vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 9
Figure 8.	THD vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	10
Figure 9.	THD vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	10
Figure 10.	THD vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	10
Figure 11.	Quiescent current vs. voltage on pin 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	11
Figure 12.	Attenuation vs. voltage on pin 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	11
Figure 13.	Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	11
Figure 14.	Power dissipation vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	12
Figure 15.	Power dissipation vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	12
Figure 16.	Power dissipation vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	12
Figure 17.	Mute and standby thresholds on pin 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	13
Figure 18.	Test and applications circuit (dual supply) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	14
Figure 19.	PCB layout, solder side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	16
Figure 20.	PCB layout, component side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	16
Figure 21.	PCB component placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	17
Figure 22.	Typical applications circuit (single supply) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	17
Figure 23.	PCB layout, solder side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18
Figure 24.	PCB layout, component side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18
Figure 25.	PCB component placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	19
Figure 26.	Multiwatt11 outline drawing and dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	20

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TDA7292	Pin description

1 Pin description

Figure 2. Pin connections (top view)

11	IN+(1)
10	IN-(1)
9	GND
8	IN-(2)
7	IN+(2)
6	-VS
5	MUTE/St-By
4	OUTPUT(2)
3	+VS
2	OUTPUT(1)
1	-VS
TAB CONNECTED TO PIN 6	D95AU316

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Electrical specifications	TDA7292

2 Electrical specifications

2.1Absolute maximum ratings

Table 2.	Absolute maximum ratings
Symbol	Parameter	Value	Unit
VS	DC supply voltage	±35	V
IO	Output peak current (internally limited)	5	A
Ptot	Power dissipation Tcase = 70°C	40	W
Top	Operating temperature	-20 to 85	°C
Tj	Junction temperature	-40 to 150	°C
Tstg	Storage temperature	-40 to 150	°C

2.2Thermal data

Table 3.	Thermal data
Symbol	Parameter	Min	Typ	Max	Unit
Rth j-case	Thermal resistance, junction to case	-	1.5	-	°C/W

2.3Electrical specifications

Unless otherwise stated, the results in Table 4 below are given for the conditions:

VS = ±26 V, RL (load) = 8 Ω, RS (source) = 50 Ω, f = 1 kHz, GV = 30 dB, and Tamb = 25° C. See also the test circuit in Figure 18 on page 14.

Table 4.	Electrical specifications
Symbol	Parameter	Condition	Min	Typ	Max	Unit
VS	Supply voltage range	-	±8	-	±33	V
Iq	Total quiescent current	-	-	50	130	mA
VOS	Output offset voltage	-	-20	-	20	mV
Ib	Non-inverting input bias current	-	-	500	-	nA
		THD = 10%:
		RL = 8 Ω, VS = ±26 V	-	40	-
Po	Output power	RL = 4 Ω, VS = ±18 V		31		W
		THD = 1%:
		RL = 8 Ω, VS = ±26 V	-	30	-
		RL = 4 Ω, VS = ±18 V		24
IPeak	Peak output current	Internally limited	-	5	-	A
THD	Total harmonic distortion	Po = 1 W	-	0.02	-	%

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TDA7292					Electrical specifications
	Table 4.	Electrical specifications	(continued)
	Symbol	Parameter		Condition	Min	Typ	Max	Unit
	CT	Crosstalk		f = 1 kHz	-	70	-	dB
	SR	Slew rate		-	-	11	-	V/ms
	GOL	Open-loop gain		-	-	80	-	dB
	eN	Total input noise		f = 20 Hz to 22 kHz	-	4	-	µV
	Ri	Input resistance		-	-	20	-	kΩ
	SVRR	Supply voltage rejection ratio		-	-	75	-	dB
	Tj	Junction temperature at thermal		-	-	145	-	°C
		shut-down
	Mute mode (see also Table 5 on page 13)
	VTMUTE	Mute/play threshold		-	-7	-6	-5	V
	AMUTE	Mute attenuation		-	-	75	-	dB
	Standby mode (see also Table 5 on page 13)
	VTSTBY	Standby/mute threshold		-	-3.5	-2.5	-1.5	V
	ASTBY	Standby attenuation		-	-	110	-	dB
	Iq_STBY	Quiescent current in standby		-	-	8	-	mA

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