Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsLinear ICsLinear IC - Audio amplifier 2-channel (stereo) Class AB Multiwatt 11

1/9

TDA7269A

June 2003

■ WIDE SUPPLY VOLTAGE RANGE UP TO

+20V

■ SPLIT SUPPLY

■ HHIGH OUTPUT POWER 14+14W

@THD = 10%, R

= 8Ω, V

= ±16V

■ NO POP AT TURN-ON/OFF

■ MUTE (POP FREE)

■ STAND-BY FEATURE (LOW I

)

■ SHORT CIRCUIT PROTECTION TO GND

■ THERMAL OVERLOAD PROTECTION

DESCRIPTION

The TDA7269A is class AB Dual Audio Power ampli-

fier assembled in the Multiwatt package, specially de-

signed for high quality sound application as Hi-Fi

music centers and stereo TV sets.

Multiwatt11

ORDERING NUMBER: TDA7269A

14W+14W STEREO AMPLIFIER WITH MUTE & ST-BY

Figure 1. Typical Application Circuit

+5V

18K15K

IN (L)

1µF

15K 1µF

MUTE/

ST-BY

GND

IN (R)

1µF

4.7Ω

100nF

OUT (L)

OUT (R)

1000µF

D94AU085

RL (L)

RL (R)

-V

µP

560Ω

18K

IN- (L)

10 IN- (R)

560Ω

18K

Summary of content (9 pages)

PAGE 1
TDA7269A 14W+14W STEREO AMPLIFIER WITH MUTE & ST-BY ■ ■ ■ ■ ■ ■ ■ ■ WIDE SUPPLY VOLTAGE RANGE UP TO +20V SPLIT SUPPLY HHIGH OUTPUT POWER 14+14W @THD = 10%, RL= 8Ω, VS = ±16V NO POP AT TURN-ON/OFF MUTE (POP FREE) STAND-BY FEATURE (LOW Iq) SHORT CIRCUIT PROTECTION TO GND THERMAL OVERLOAD PROTECTION Multiwatt11 ORDERING NUMBER: TDA7269A DESCRIPTION The TDA7269A is class AB Dual Audio Power amplifier assembled in the Multiwatt package, specially de- signed for high quality sound application as Hi-Fi music
PAGE 2
TDA7269A ABSOLUTE MAXIMUM RATINGS Symbol Parameter VS DC Supply Voltage IO Output Power Current (internally limited) Ptot Total Power Dissipation (Tamb = 70°C) Top Operating Temperature Tstg, Tj Storage and Junction Temperature Value Unit ±22 V 3 A 40 W 0 to 70 °C -40 to 150 °C Value Unit 2.
PAGE 3
TDA7269A ELECTRICAL CHARACTERISTCS (Refer to the test circuit VS = ±16V; RL = 8Ω; RS = 50Ω; GV = 30dB, f = 1KHz; Tamb = 25°C, unless otherwise specified) Symbol VS Iq VOS Parameter Supply Voltage Range Min. PO Output Power Total Harmonic Distortion V RL = 4Ω ±5 ±15 V 100 mA 25 mV 60 -25 500 nA THD = 10%; RL = 8Ω; VS = ±12.5V; RL = 4Ω; 12 8 14 10 W W THD = 1%; RL = 8Ω; VS = ±12.5V; RL = 4Ω; 9 6 11 7.5 W W 0.03 % RL = 8Ω; PO = 1W; f = 1KHz; 0.7 RL = 4Ω; PO = 1W; f = 1KHz; 0.
PAGE 4
TDA7269A MUTE STAND-BY FUNCTION The pin 5 (MUTE/STAND-BY) controls the amplifier status by two different thresholds, referred to +VS. – When Vpin5 higher than = +VS -2.5V the amplifier is in Stand-by mode and the final stage generators are off. – When Vpin5 between +VS -2.5V and +VS -6V the final stage current generators are switched on and the amplifier is in mute mode. – When Vpin5 is lower than +VS -6V the amplifier is play mode. Figure 3. +VS (V) 20 t -VS -20 VIN (mV) Vpin5 (V) VS VS-2.
PAGE 5
TDA7269A Figure 4.
PAGE 6
TDA7269A BRIDGE APPLICATION Another application suggestion concerns the Bridge configuration , where the two power amplifiers are connected as shown by the schematic diagrams of figure 5 “Split Power Supply” , and figure 6 “Single Power Supply”. This application shows,however, some operative limits due to dissipation and current capability of the output stage.
PAGE 7
TDA7269A Figure 6. Single Power Supply Application Diagram +VS 5.1V 10K 15K 1µF 1000µF MUTE PLAY 5V 0 MUTE 3 5 7 IN (L) BSX33 + 4 OUT (L) 8 IN- (L) - 1µF 15K 30K 4.7Ω 0.1µF 9 100µF 1µF 0.1µF OUT 1K IN (R) 11 + 2 IN- (R) 30K 10 1 4.7Ω OUT (R) 0.1µF 1K 6 GND 5.6nF D03AU1518 Figure 7. Distortion vs Output Power Figure 9. Distortion vs Output Power THD(%) 10 THD(%) 10 5 5 2 Vs =+/- 10V 1 Rload =4 ohm 0.5 Vs =+/- 14V 1 Rload =8 ohm f=1KHz 0.5 f=1KHz 0.2 2 0.
PAGE 8
TDA7269A mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. A 5 0.197 B 2.65 0.104 C 1.6 D 0.063 1 E 0.49 0.039 0.55 0.019 0.022 F 0.88 0.95 0.035 G 1.45 1.7 1.95 0.057 0.067 0.077 G1 16.75 17 17.25 0.659 0.669 0.679 H1 19.6 0.037 0.862 0.874 0.886 0.87 0.886 0.772 H2 20.2 L 21.9 22.2 L1 21.7 22.1 L2 17.4 L3 17.25 L4 10.3 22.5 0.795 22.5 0.854 18.1 0.685 17.5 17.75 0.679 0.689 0.699 10.7 10.9 0.406 0.421 0.429 0.713 L7 2.65 2.9 0.
PAGE 9
TDA7269A Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice.