File name TDA7265.pdf®
TDA7265
25 +25W STEREO AMPLIFIER WITH MUTE & ST-BY
WIDE SUPPLY VOLTAGE RANGE (UP TO ±25V ABS MAX.) SPLIT SUPPLY HIGH OUTPUT POWER 25 + 25W @ THD =10%, RL = 8, VS = +20V NO POP AT TURN-ON/OFF MUTE (POP FREE) STAND-BY FEATURE (LOW Iq) SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION DESCRIPTION The TDA7265 is class AB dual Audio power amplifier assembled in the Multiwatt package, specially designed for high quality sound application as Hi-Fi music centers and stereo TV sets. Figure 1: Typical Application Circuit in Split Supply
Multiwatt11 ORDERING NUMBER: TDA7265
+VS 1000µF MUTE/ ST-BY IN (L) 1µF 3
15K
1µF
5 7 + -
4
OUT (L) 18K 4.7 100nF 560
8 15K +5V µP 18K GND 9 10
IN- (L)
RL (L)
IN- (R)
560 18K
1µF
IN (R)
11
+ 1 6 -VS 1000µF
2
OUT (R) 4.7 100nF
RL (R)
D94AU085
April 2002
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TDA7265
ABSOLUTE MAXIMUM RATINGS
Symbol VS IO Ptot Top Tstg, Tj DC Supply Voltage Output Peak Current (internally limited) Power Dissipation Tcase = 70°C Operating Temperature Storage and Junction Temperature Parameter Value ±25 4.5 30 -20 to 85 -40 to +150 Unit V A W °C °C
PIN CONNECTION (Top view)
11 10 9 8 7 6 5 4 3 2 1
IN+(1) IN-(1) GND IN-(2) IN+(2) -VS MUTE OUTPUT(2) +VS OUTPUT(1) -VS
TAB CONNECTED TO PIN 6
D95AU316
THERMAL DATA
Symbol Rth j-case Description Thermal Resistance Junction-case Max Value 2 Unit °C/W
Fig 2: Typical Application Circuit in Single Supply
D1 5.1V R1 10K PLAY 5V 0 MUTE C1 1µF R3 15K MUTE Q1 BSX33 R2 15K C2 100µF C3 1µF IN (L) 5 7 + -
+VS C5 1000µF 3 4 OUT (L) R4 30K R5 1K + 2 IN- (R) R6 30K R7 1K C9 470µF C6 0.1µF
8 9 C4 1µF IN (R) 11
IN- (L)
R8 4.7 C7 0.1µF C10 470µF
OUT (L)
10 1 6 GND
OUT (R)
R9 4.7 C8 0.1µF
OUT (R)
D96AU444A
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TDA7265
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, VS = + 20V; RL = 8; RS = 50; GV = 30dB; f = 1KHz; Tamb = 25°C, unless otherwise specified.)
Symbol VS Iq VOS Ib PO PO Parameter Supply Range Total Quiescent Current Input Offset Voltage Non Inverting Input Bias Current Music Output Power (*) Output Power THD = 10%; RL = 8 ; VS = + 22.5V THD = 10% RL = 8 ; VS + 16V; RL = 4 THD = 1% RL = 8 ; VS + 16V; RL = 4 THD Total Harmonic Distortion RL = 8 ; PO = 1W; f = 1KHz RL = 8 ; PO = 0.1 to 15W; f = 100Hz to 15KHz RL = 4 ; PO = 1W; f = 1KHz RL = 4 ; VS + 16V; PO = 0.1 to 12W; f = 100Hz to 15KHz CT SR GOL eN Ri SVR Tj Cross Talk Slew Rate Open Loop Voltage Gain Total Input Noise Input Resistance Supply Voltage Rejection (each channel) Thermal Shut-down Junction Temperature -7 60 -3.5 fr = 100Hz Vr = 0.5V A Curve f = 20Hz to 22KHz 15 f = 1KHz f = 10KHz 70 60 10 80 3 4 20 60 145 8 0.02 1 20 500 32 Test Condition Min. +5 80 Typ. Max. +25 130 +20 Unit V mA mV nA W
20
25 25 20 20 0.01 0.7
W W W W % %
% %
dB dB V/µs dB µV µV K dB °C
MUTE FUNCTION [ref: +VS] Mute / Play Threshold VTMUTE AM VTST-BY AST-BY Iq ST-BY Mute Attenuation Stand-by / Mute Threshold Stand-by Attenuation Quiescent Current @ Stand-by STAND-BY FUNCTION [ref: +VS]
-6 70 -2.5 110 3
-5
V dB
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