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TDA7269SA PDF 데이터시트 ( Data , Function )

부품번호 TDA7269SA 기능
기능 10W+10W STEREO AMPLIFIER
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TDA7269SA 데이터시트, 핀배열, 회로
TDA7269SA
10W+10W STEREO AMPLIFIER WITH MUTE & ST-BY
1 FEATURES
WIDE SUPPLY VOLTAGE RANGE UP TO
+20V
SPLIT SUPPLY
10+10W @THD = 10%, RL= 8, VS = ±14V
NO POP AT TURN-ON/OFF
MUTE (POP FREE)
STAND-BY FEATURE (LOW Iq)
SHORT CIRCUIT PROTECTION TO GND
THERMAL OVERLOAD PROTECTION
CLIPWATT 11 PACKAGE
2 DESCRIPTION
The TDA7269SA is class AB power amplifier assem-
bled in the @ Clipwatt 11 package, specially de-
Figure 1. Package
Clipwatt11
Table 1. Order Codes
Part Number
TDA7269SA
Package
Clipwatt11
signed for high quality sound application as Hi-Fi
music centers and stereo TV sets.
The TDA7269SA is pin to pin compatible with
TDA7269, TDA7269A, TDA7269ASA, TDA7265,
TDA7499, TDA7499SA.
Figure 2. Block Diagram
15K 1µF
MUTE/
ST-BY
IN (L)
5
7
1µF
+5V µP
15K 18K
GND 9
1µF
IN (R) 11
D94AU085
+VS
3
1000µF
+
-
-
+
1
1000µF
4 OUT (L)
18K 4.7
8 IN- (L)
100nF
560
10 IN- (R)
560
18K
2 OUT (R)
4.7
6
-VS 100nF
RL (L)
RL (R)
September 2004
Rev. 2
1/11




TDA7269SA pdf, 반도체, 판매, 대치품
TDA7269SA
3 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 lower than = +VS -6V the amplifier is play mode.
Figure 5.
+VS
(V)
20
-VS
-20
VIN
(mV)
Vpin5
(V)
VS
VS-2.5
VS-6
VS-10
Iq
(mA)
0
VOUT
(V)
t
OFF
PLAY
STDBY PLAY
OFF
STDBY
STDBY
MUTE D94AU086 MUTE
MUTE
MUTE
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TDA7269SA 전자부품, 판매, 대치품
TDA7269SA
5 HEAT SINK DIMENSIONING:
In order to avoid the thermal protection intervention, that is placed approximatively at Tj = 150°C, it is im-
portant the dimensioning of the Heat Sinker RTh (°C/W).
The parameters that influence the dimensioning are:
– Maximum dissipated power for the device (Pdmax)
– Max thermal resistance Junction to case (RTh j-c)
– Max. ambient temperature Tamb max
– Quiescent current Iq (mA)
5.1 Example:
VCC = ±14V, Rload = 8ohm, RTh j-c = 3.9 °C/W , Tamb max = 50°C
Pdmax = (N° channels) · Π------22----V---R-c---cl--o2---a---d- + Iq Vcc
Pdmax = 2 · ( 4.96 ) + 0.84 = 10.7 W
(Heat Sinker) RTh c-a = 1----5---0-----–P-----dT----am---m-a---xb-----m----a--x- – RTh j-c = 1----5--1-0--0---–-.-7---5---0-- – 3.9 = 5.4°C/W
In figure 7 is shown the Power derating curve for the device.
Figure 10. Power derating curve
25
20
15
10
5
0
0
(b)
(c)
(a)
a) Infinite Heatsink
b) 5.0 °C/ W
c) 7.0 °C/ W
40 80 120
Tamb (°C)
160
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부품번호상세설명 및 기능제조사
TDA7269SA

10W+10W STEREO AMPLIFIER

ST Microelectronics
ST Microelectronics

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