TDA7261 ,25W MONO AMPLIFIER WITH MUTE/ST-BYTDA726125W MONO AMPLIFIER WITH MUTE/ST-BYWIDE SUPPLY VOLTAGE RANGE (UP TO50V ABS MAX.)SPLIT SUPPLYH ..
TDA7262 ,20+20W STEREO AMPLIFIER WITH STAND-BYTDA726220+20W STEREO AMPLIFIER WITH STAND-BYWIDE SUPPLY VOLTAGE RANGEHIGH OUTPUT POWER28+28W TYP. M ..
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TDA7263SA ,12 + 12W STEREO AMPLIFIER WITH MUTINGTDA7263SA12 + 12W STEREO AMPLIFIER WITH MUTING■ WIDE SUPPLY VOLTAGE RANGE■ HIGH OUTPUT POWER12+12W ..
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THBT20011DRL ,TRIPOLAR OVERVOLTAGE PROTECTION FOR TELECOM LINEFEATURESn BIDIRECTIONAL CROWBAR PROTECTIONBETWEEN TIP AND GND, RING AND GNDAND BETWEEN TIP AND RING ..
THBT200S ,TRANSIENT VOLTAGE SUPPRESSOR FOR SLIC PROTECTIONFEATURESn DUAL BIDIRECTIONAL CROWBAR PROTECTION.n PEAK PULSE CURRENT :-I = 75 A, 10/1000 μs.PPn HOL ..
TDA7261
25W MONO AMPLIFIER WITH MUTE/ST-BY
TDA726125W MONO AMPLIFIER WITH MUTE/ST-BY
WIDE SUPPLY VOLTAGE RANGE (UP TO
50V ABS MAX.)
SPLIT SUPPLY
HIGH OUTPUT POWER:
25W @ THD =10%, RL = 8Ω, VS = +20V
NO POP AT TURN-ON/OFF
MUTE (POP FREE)
STAND-BY FEATURE (LOW IQ)
FEW EXTERNAL COMPONENTS
SHORT CIRCUIT PROTECTION
THERMAL OVERLOAD PROTECTION
DESCRIPTIONThe TDA7261 is class AB Audio power amplifier
assembled in the Multiwatt package, specially de- signed for high quality sound application in mono
TV chassis.
Figure 1: Typical Application Circuit
ABSOLUTE MAXIMUM RATINGS
PIN CONNECTION (Top view)
THERMAL DATA
TDA7261
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, VS + 20V; RL = 8Ω; Rs =50Ω;f = 1KHz; Tamb = 25°C, unless otherwise specified.)
Note :
(*) FULL POWER up to. VS = ±22.5V with RL = 8Ω and VS = ±16V with RL = 4Ω
MUSIC POWER is the maximal power which the amplifier is capable of producing across the rated load resistance (regardless of non linearity)1 sec after the application of a sinusoidal input signal of frequency 1KHz.
TDA7261
APPLICATIONS SUGGESTION(Demo Board Schematic)
The recommended values of the external compo-
nents are those shown on the demo board sche-
matic. Different values can be used: the following
table can help the designer.
MUTE, STAND-BY TRUTH TABLE
TDA7261
Figure 2: Demo Board Schematic
Figure 3: P.C. Board And Component Layout of the Demo Board Schematic (1:1 Scale)
TDA7261
Figure 7: Supply Voltage Rejection vs. FequencyFigure 6: Distortion vs. Output Power
Figure 4: Quiescent Current vs. Supply Voltage Figure 5: Output Power vs Supply Voltage
Figure 8: Attenuation & Total Quiescent Currentvs. Vpin4 Voltage
Figure 9: Power Dissipation vs. Output Power
TDA7261
