Philips Stereo Amplifier TFA9843AJ User Manual

TFA9843AJ  
20 W stereo power amplifier with volume control  
Rev. 01 — 28 April 2006  
Preliminary data sheet  
1. General description  
The TFA9843AJ contains two identical audio power amplifiers. The TFA9843AJ can be  
used as two Single-Ended (SE) channels with a volume control. The maximum gain is  
26 dB.  
The TFA9843AJ comes in a 9-pin DIL-bent-SIL (DBS9P) power package. The TFA9843AJ  
is pin compatible with the TFA9842AJ, TFA9843(B)J, TFA9842(B)J and TFA9841J. The  
difference between the TFA9843AJ and the TFA9843(B)J, TFA9842(B)J, TFA9841J is the  
functionality of pin 7. The TFA9843AJ has a volume control on pin 7 (VC). The  
TFA9843(B)J, TFA9842(B)J and TFA9841J have a mode select on pin 7 (MODE).  
The TFA9843AJ contains a unique protection circuit that is solely based on multiple  
temperature measurements inside the chip. This gives maximum output power for all  
supply voltages and load conditions with no unnecessary audio holes. Almost any supply  
voltage and load impedance combination can be made as long as thermal boundary  
conditions (number of channels used, external heatsink and ambient temperature) allow  
it.  
2. Features  
I 2 channel SE: 1 W to 20 W operation possibility  
I Soft clipping  
I Input clamps  
I Volume control  
I Standby and Mute mode  
I No on or off switching plops  
I Low standby current  
I High supply voltage ripple rejection  
I Outputs short-circuit protected to ground, supply and across the load  
I Thermally protected  
I Pin compatible with the TFA9842AJ, TFA9843(B)J, TFA9842(B)J, TFA9841J  
3. Applications  
I CRT TV and LCD TV  
I Monitors  
I PC speakers  
I Boom box  
I Mini and micro audio receivers  
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TFA9843AJ  
Philips Semiconductors  
20 W stereo power amplifier with volume control  
6. Block diagram  
V
CC  
9
4
8
2
IN1  
OUT1  
OUT2  
60  
k  
1
3
IN2  
CIV  
60  
kΩ  
SHORT-CIRCUIT  
AND  
TEMPERATURE  
PROTECTION  
V
REF  
V
CC  
7
VOLUME  
CONTROL  
VC  
0.5V  
CC  
6
SVR  
TFA9843AJ  
5
001aae428  
GND  
Fig 1. Block diagram  
7. Pinning information  
7.1 Pinning  
1
2
3
4
5
6
7
8
9
IN2  
OUT2  
CIV  
IN1  
GND  
SVR  
VC  
TFA9843AJ  
OUT1  
V
CC  
001aae429  
Fig 2. Pin configuration  
TFA9843AJ_1  
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.  
Preliminary data sheet  
Rev. 01 — 28 April 2006  
3 of 19  
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TFA9843AJ  
Philips Semiconductors  
20 W stereo power amplifier with volume control  
7.2 Pin description  
Table 3.  
Symbol  
IN2  
Pin description  
Pin  
1
Description  
input 2  
OUT2  
CIV  
2
loudspeaker terminal 2  
3
common input voltage decoupling  
input 1  
IN1  
4
GND  
SVR  
VC  
5
ground  
6
half supply voltage decoupling (ripple rejection)  
volume control input (standby, mute and volume control)  
loudspeaker terminal 1  
7
OUT1  
VCC  
8
9
supply voltage  
8. Functional description  
8.1 Input configuration  
The input cut-off frequency is as follows:  
1
f i(3dB)  
=
(1)  
(2)  
----------------------------  
2π(Ri × Ci)  
Single-ended application: Ri = 60 kand Ci = 220 nF:  
1
f i(3dB)  
=
= 12 Hz  
----------------------------------------------------------------  
2π(60 × 103 × 220 × 109  
)
As shown in Equation 2, large capacitor values for the inputs are not necessary; therefore  
switch-on delay during charging of the input capacitors can be minimized. This results in a  
good low frequency response and good switch-on behavior.  
The TFA9843AJ has clamps on the inputs. In Standby mode the voltage on the input pins  
is clamped for voltages lower than 0.1 V. When the TFA9843AJ is in Mute, Volume  
control or Operating mode (maximum gain) the input clamp voltage is 1 V (RMS).  
8.2 Power amplifier  
The power amplifier is a single-ended amplifier with an all NPN output stage, capable of  
delivering a peak output current of 4 A.  
8.2.1 Output power measurement  
The output power as a function of the supply voltage is measured on the output pins at  
THD = 10 %; see Figure 7. The maximum output power is limited by the supply voltage of  
26 V and the maximum available output current is 4 A repetitive peak current. A minimum  
load of 3 is required for supply voltages > 22 V; see Figure 4. The output power is  
measured with one channel driven.  
TFA9843AJ_1  
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.  
Preliminary data sheet  
Rev. 01 — 28 April 2006  
4 of 19  
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TFA9843AJ  
Philips Semiconductors  
8.2.2 Headroom  
20 W stereo power amplifier with volume control  
Typical CD music requires at least 12 dB (factor 15.85) dynamic headroom, compared to  
the average power output, for transferring the loudest parts without distortion. At  
VCC = 18 V and Po = 6.5 W (SE with RL = 4 ) at THD < 0.5 % (see Figure 5), the  
Average Listening Level (ALL) music power without any distortion yields:  
6.5  
15.85  
Po(ALL, SE)  
=
= 410 mW  
(3)  
------------  
The power dissipation can be derived from Figure 8 (SE) for 0 dB respectively 12 dB  
headroom; see Table 4.  
For the average listening level a power dissipation of 4.2 W can be used for a heatsink  
calculation.  
Table 4.  
Power rating as function of headroom  
Power output (THD < 0.5 %)  
Headroom  
Power dissipation (P);  
both channels driven  
(SE)  
0 dB  
Po = 6.5 W  
Po(ALL) = 410 mW  
8.2 W  
4.2 W  
12 dB  
8.3 Mode selection  
The TFA9843AJ has four functional modes, which can be selected by applying the proper  
DC voltage to pin VC; see Table 5.  
Table 5.  
VI(VC)  
Mode selection  
Status  
Definition  
0 V to 0.8 V  
Standby  
in this mode the current consumption is very low  
and the outputs are floating; the device is in  
Standby mode when VI(VC) < 0.8 V  
1.2 V to 1.5 V  
Mute  
in this mode the amplifier is DC-biased but not  
operational (no audio output); this allows the input  
coupling capacitors to be charged to avoid plop  
noise; the device is in Mute mode when  
1.2 V < VI(VC) < 1.5 V  
1.5 V to 5.0 V  
5.0 V to VCC  
Volume control  
in this mode the volume of the amplifier can be  
controlled; the gain can be adjusted between the  
range of 1.5 V < VI(VC) < 5.0 V  
On (maximum gain) in this mode the amplifier has its maximum gain; the  
Operating mode is activated at VI(VC) > 5.0 V  
8.4 Supply voltage ripple rejection  
The supply voltage ripple rejection (SVRR) is measured with an electrolytic capacitor of  
150 µF connected to pin SVR with a bandwidth of 20 Hz to 22 kHz. The SVRR as a  
function of the frequency is illustrated in Figure 10. A larger capacitor value on pin SVR  
improves the ripple rejection behavior at the lower frequencies.  
TFA9843AJ_1  
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.  
Preliminary data sheet  
Rev. 01 — 28 April 2006  
5 of 19  
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TFA9843AJ  
Philips Semiconductors  
20 W stereo power amplifier with volume control  
8.5 Built-in protection circuits  
The TFA9843AJ contains two types of temperature sensors; one measures the local  
temperatures of the power stages and one measures the global chip temperature. At a  
local temperature of the power stage of approximately 185 °C or a global temperature of  
approximately 150 °C this detection circuit switches off the power stages for 2 ms. When  
the outputs are switched off the voltage is measured on the outputs. In the event of a  
short-circuit to ground or to VCC the device will remain in Protection mode. In all other  
cases the power stages switch-on automatically and the detection will take place again;  
however a too high temperature will switch-off the power stages immediately. This can  
result in repetitive switching during too high junction temperature. This protects the  
TFA9843AJ against short-circuits to ground, to the supply voltage, across the load and too  
high chip temperatures.  
The protection will only be activated when necessary, so even during a short-circuit  
condition, a certain amount of (pulsed) current will still flow through the short-circuit (as  
much as the power stage can handle without exceeding the critical temperature level).  
9. Limiting values  
Table 6.  
Limiting values  
In accordance with the Absolute Maximum Rating System (IEC 60134).  
Symbol  
VCC  
Parameter  
Conditions  
Min  
Max  
Unit  
V
supply voltage  
operating  
0.3 +28  
VI  
input voltage  
0.3 VCC + 0.3  
V
IORM  
Tstg  
repetitive peak output current  
storage temperature  
ambient temperature  
total power dissipation  
-
4
A
non-operating  
operating  
55  
+150  
+85  
35  
°C  
°C  
W
V
Tamb  
Ptot  
40  
-
-
VCC(scp)  
short-circuit protection supply  
voltage  
26  
10. Thermal characteristics  
Table 7.  
Symbol  
Rth(j-a)  
Thermal characteristics  
Parameter  
Conditions  
Value  
Unit  
thermal resistance from  
junction to ambient  
in free air  
40  
K/W  
Rth(j-c)  
thermal resistance from  
junction to case  
both channels  
driven  
2.0  
K/W  
TFA9843AJ_1  
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.  
Preliminary data sheet  
Rev. 01 — 28 April 2006  
6 of 19  
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TFA9843AJ  
Philips Semiconductors  
20 W stereo power amplifier with volume control  
11. Static characteristics  
Table 8.  
Static characteristics  
VCC = 18 V; Tamb = 25 °C; RL = 4 ; VI(VC) = VCC; Vi = 0 V; measured in test circuit of Figure 11;  
unless otherwise specified.  
Symbol  
VCC  
Parameter  
Conditions  
operating  
RL = ∞  
Min  
Typ  
18  
60  
-
Max Unit  
supply voltage  
quiescent current  
9
-
28  
V
Iq  
100  
150  
mA  
µA  
ICC(stb)  
standby supply current VCC = 18 V;  
-
VI(VC) < 0.8 V  
VO  
output voltage  
-
9
-
-
V
V
VI(VC)  
input voltage on pin VC On mode (maximum  
gain)  
5.0  
VCC  
Volume control mode  
Mute mode  
1.5  
1.2  
0
-
-
-
-
5.0  
1.5  
0.8  
20  
V
V
Standby mode  
V
II(VC)  
input current on pin VC 0 V < VI(VC) < VCC  
-
µA  
[1] A minimum load of 3 is allowed at supply voltages > 22 V.  
[2] The DC output voltage with respect to ground is approximately 0.5VCC  
.
12. Dynamic characteristics  
Table 9.  
Dynamic characteristics SE  
VCC = 18 V; Tamb = 25 °C; RL = 4 ; f = 1 kHz; VI(VC) = VCC; measured in test circuit of Figure 11;  
unless otherwise specified.  
Symbol  
Parameter  
Conditions  
Min  
Typ  
8.5  
6.5  
14  
Max Unit  
Po  
output power  
THD = 10 %; RL = 4 Ω  
THD = 0.5 %; RL = 4 Ω  
7
-
-
-
-
W
W
W
VCC = 22 V;  
-
THD = 10 %; RL = 4 Ω  
THD  
total harmonic  
distortion  
Po = 1 W  
-
0.1  
0.5  
%
Gv(max)  
Gv  
Vi  
maximum voltage gain VI(VC) > 5.0 V  
25  
-
26  
80  
27  
-
dB  
dB  
V
voltage gain range  
input voltage  
1.5 V < VI(VC) < 5.0 V  
gain = 0 dB;  
THD < 1 %  
1.0  
-
Zi  
input impedance  
40  
-
60  
-
-
-
-
kΩ  
µV  
dB  
dB  
Vn(o)  
SVRR  
noise output voltage  
150  
60  
supply voltage ripple  
rejection  
fripple = 1 kHz  
-
fripple = 100 Hz to  
20 kHz  
-
60  
Vo(mute)  
αcs  
mute output voltage  
channel separation  
-
-
150  
µV  
dB  
dB  
ZS = 0 Ω  
50  
-
60  
-
-
|Gv(max)  
|
maximum voltage gain  
difference  
1
TFA9843AJ_1  
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.  
Preliminary data sheet  
Rev. 01 — 28 April 2006  
7 of 19  
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TFA9843AJ  
Philips Semiconductors  
20 W stereo power amplifier with volume control  
[1] The noise output voltage is measured at the output in a frequency range from 20 Hz to 22 kHz  
(unweighted), with a source impedance ZS = 0 at the input.  
[2] Supply voltage ripple rejection is measured at the output, with a source impedance ZS = 0 at the input  
and with a frequency range from 20 Hz to 22 kHz (unweighted). The ripple voltage is a sine wave with a  
frequency fripple and an amplitude of 300 mV (RMS), which is applied to the positive supply rail.  
[3] Output voltage in Mute mode (VI(VC) = 1.35 V) and an input voltage of 1 V (RMS) in a bandwidth from 20 Hz  
to 22 kHz, including noise.  
mce485  
001aae340  
60  
50  
G
(dB)  
V
P
o
(W)  
0
40  
20  
0
50  
100  
150  
2 Ω  
3 Ω  
4 Ω  
R
L
= 1 Ω  
8 Ω  
8
12  
16  
20  
24  
28  
0
2.0  
4.0  
6.0  
V
(V)  
V
(V)  
CC  
I(VC)  
VCC = 18 V  
THD = 10 %  
Fig 3. Voltage gain as a function of volume control  
voltage  
Fig 4. Output power (one channel) as a function of  
supply voltage for various loads  
001aaa446  
mce488  
2
10  
10  
THD + N  
(%)  
THD+N  
(%)  
10  
1
1
1  
10  
1  
10  
2  
10  
2  
10  
10  
10  
2
3
4
5
1  
2
10  
10  
10  
10  
1
10  
10  
f (Hz)  
P
(W)  
o
VCC = 18 V; f = 1 kHz; RL = 4 Ω  
VCC = 18 V; Po = 1 W; RL = 4 Ω  
Fig 5. Total harmonic distortion-plus-noise as a  
function of output power  
Fig 6. Total harmonic distortion-plus-noise as a  
function of frequency  
TFA9843AJ_1  
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.  
Preliminary data sheet  
Rev. 01 — 28 April 2006  
8 of 19  
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TFA9843AJ  
Philips Semiconductors  
20 W stereo power amplifier with volume control  
mce491  
mce507  
50  
10  
P
P
o
tot  
(W)  
(W)  
40  
8
30  
20  
6
4
10  
0
2
0
8
12  
16  
20  
24  
V
28  
0
4
8
12  
16  
20  
P
o
(W)  
(V)  
CC  
THD = 10 %; RL = 4 ; f = 1 kHz  
VCC = 18 V; RL = 4 Ω  
Fig 7. Output power as a function of supply voltage  
Fig 8. Total power dissipation as a function of channel  
output power per channel (worst case, both  
channels driven)  
mce497  
mce495  
0
0
α
(dB)  
cs  
SVRR  
(dB)  
20  
20  
40  
60  
80  
40  
60  
80  
100  
2
3
4
5
2
3
4
5
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
f (Hz)  
f (Hz)  
VCC = 18 V; RL = 4 Ω  
VCC = 18 V; ZS = 0 ; Vripple = 300 mV (RMS); a  
bandpass filter of 20 Hz to 22 kHz has been applied;  
inputs short-circuited.  
Fig 9. Channel separation as a function of frequency  
(no bandpass filter applied)  
Fig 10. Supply voltage ripple rejection as a function of  
frequency  
TFA9843AJ_1  
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.  
Preliminary data sheet  
Rev. 01 — 28 April 2006  
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TFA9843AJ  
Philips Semiconductors  
20 W stereo power amplifier with volume control  
13. Application information  
13.1 Application diagrams  
13.1.1 Single-ended application  
V
CC  
V
9
CC  
100 nF  
1000 µF  
220 nF  
IN1  
OUT1  
4
8
2
+
1000 µF  
V
V
R
L
4 Ω  
i
i
60 kΩ  
220 nF  
IN2  
CIV  
OUT2  
1
3
+
1000 µF  
R
L
60 kΩ  
4 Ω  
SHORT-CIRCUIT  
AND  
TEMPERATURE  
PROTECTION  
V
REF  
V
CC  
VC  
VOLUME  
7
CONTROL  
MICRO-  
CONTROLLER  
0.5V  
CC  
6
SVR  
TFA9843AJ  
22 µF  
10 µF  
150 µF  
5
001aae430  
GND  
Fig 11. SE application diagram  
Remark: By switching inductive loads, the output voltage can rise beyond the maximum  
supply voltage of 28 V. At high supply voltage it is recommended to use (Schottky) diodes  
between the supply voltage and ground.  
TFA9843AJ_1  
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.  
Preliminary data sheet  
Rev. 01 — 28 April 2006  
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TFA9843AJ  
Philips Semiconductors  
20 W stereo power amplifier with volume control  
13.1.2 Volume control drive options  
V
CC  
R1  
10 kΩ  
T1  
D1  
5.6 V  
5 V  
R2  
1 kΩ  
R3  
1 kΩ  
GND  
R4  
VC  
1 kΩ  
T3  
C1  
R5  
10 µF  
PWM  
3.3 V  
T2  
1 kΩ  
001aae337  
Fig 12. Volume control drive circuit with 3.3 V PWM  
R4  
PWM  
VC  
5 V  
1 kΩ  
C1  
10 µF  
001aae338  
Fig 13. Volume control drive circuit with 5 V PWM  
V
CC  
R1  
10 kΩ  
T1  
R5  
D1  
VC  
10 V  
16 kΩ  
C1  
R6  
10 µF  
16 kΩ  
001aae339  
Fig 14. Volume control drive circuit with potentiometer  
TFA9843AJ_1  
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.  
Preliminary data sheet  
Rev. 01 — 28 April 2006  
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TFA9843AJ  
Philips Semiconductors  
20 W stereo power amplifier with volume control  
13.2 Printed-circuit board  
13.2.1 Layout and grounding  
To obtain a high-level system performance, certain grounding techniques are essential.  
The input reference grounds have to be tied with their respective source grounds and  
must have separate tracks from the power ground tracks; this will prevent the large output  
signal currents from interfering with the small AC input signals. The small-signal ground  
tracks should be physically located as far as possible from the power ground tracks.  
Supply and output tracks should be as wide as possible for delivering maximum output  
power.  
AUDIO POWER CS NIJMEGEN  
2 0 a 0 n 3 . / 2 F 7 P J  
TVA  
TFA9843J  
100 nF  
1000 µF  
220  
220  
nF  
nF  
150 µF  
CIV  
MODE  
22  
µF  
10  
kΩ  
SGND  
+V  
P
10 kΩ  
CIV  
SB ON  
MUTE  
IN2+  
IN1+  
mce506  
Fig 15. Printed-circuit board layout (single-sided); components view  
13.2.2 Power supply decoupling  
Proper supply bypassing is critical for low-noise performance and high supply voltage  
ripple rejection. The respective capacitor location should be as close as possible to the  
device and connected to the power ground. Proper power supply decoupling also prevents  
unwanted oscillations.  
For suppressing higher frequency transients (spikes) on the supply rail a capacitor with  
low ESR (typical 100 nF) has to be placed as close as possible to the device. For  
suppressing lower frequency noise and ripple signals, a large electrolytic capacitor (e.g.  
1000 µF or greater) must be placed close to the device.  
The bypass capacitor connected to pin SVR reduces the noise and ripple on the mid rail  
voltage. For good THD and noise performance, a low ESR capacitor is recommended.  
TFA9843AJ_1  
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.  
Preliminary data sheet  
Rev. 01 — 28 April 2006  
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Philips Semiconductors  
20 W stereo power amplifier with volume control  
13.3 Thermal behavior and heatsink calculation  
The measured maximum thermal resistance of the IC package, Rth(j-mb), is 2.0 K/W.  
A calculation for the heatsink can be made, with the following parameters:  
Tamb(max) = 60 °C (example)  
VCC = 18 V and RL = 4 (SE)  
Tj(max) = 150 °C (specification)  
Rth(tot) is the total thermal resistance between the junction and the ambient including the  
heatsink. This can be calculated using the maximum temperature increase divided by the  
power dissipation:  
Rth(tot) = (Tj(max) Tamb(max))/P  
At VCC = 18 V and RL = 4 (2 × SE) the measured worst case sine wave dissipation is  
8.4 W; see Figure 8. For Tj(max) = 150 °C the temperature raise, caused by the power  
dissipation, is: 150 60 = 90 °C:  
P × Rth(tot) = 90 °C  
Rth(tot) = 90/8.4 K/W = 10.7 K/W  
Rth(h-a) = Rth(tot) Rth(j-mb) = 10.7 K/W 2.0 K/W = 8.7 K/W  
This calculation is for an application at worst case (stereo) sine wave output signals. In  
practice music signals will be applied, which decreases the maximum power dissipation to  
approximately half of the sine wave power dissipation; see Section 8.2.2. This allows the  
use of a smaller heatsink:  
P × Rth(tot) = 90 °C  
Rth(tot) = 90/4.2 K/W = 21.4 K/W  
Rth(h-a) = Rth(tot) Rth(j-mb) = 21.4 K/W 2.0 K/W = 19.4 K/W  
TFA9843AJ_1  
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.  
Preliminary data sheet  
Rev. 01 — 28 April 2006  
13 of 19  
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TFA9843AJ  
Philips Semiconductors  
20 W stereo power amplifier with volume control  
mce504  
150  
(1)  
(2)  
(3)  
(4)  
(5)  
T
j
(˚C)  
100  
50  
0
8
12  
16  
20  
24  
28  
VCC (V)  
(1) RL = 2 Ω  
(2) RL = 4 Ω  
(3) RL = 6 Ω  
(4) RL = 8 Ω  
(5) RL = 16 Ω  
2 × SE loads; Tamb = 25 °C; external heatsink of 10 K/W; music signals.  
Fig 16. Junction temperature as a function of supply voltage  
14. Test information  
14.1 Quality information  
The General Quality Specification for Integrated Circuits, SNW-FQ-611 is applicable.  
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15. Package outline  
DBS9P: plastic DIL-bent-SIL power package; 9 leads (lead length 12/11 mm); exposed die pad  
SOT523-1  
q
1
non-concave  
x
E
h
D
h
D
D
view B: mounting base side  
1
P
A
2
k
q
2
B
E
q
L
3
L
2
L
1
L
1
9
e
w
M
Q
c
v
M
Z
1
b
p
e
m
e
2
0
5
10 mm  
scale  
DIMENSIONS (mm are the original dimensions)  
(2)  
(1)  
(2)  
(1)  
(1)  
UNIT A  
b
c
D
D
D
E
E
e
e
e
k
L
L
L
L
m
P
Q
q
q
q
2
v
w
x
Z
2
p
1
h
h
1
2
1
2
3
1
2.7 0.80 0.58 13.2 6.2  
2.3 0.65 0.48 12.8 5.8  
14.7  
14.3  
3
2
12.4 11.4 6.7 4.5  
11.0 10.0 5.5 3.7  
3.4  
3.1  
1.65  
1.10  
1.15 17.5  
0.85 16.3  
3.8  
3.6  
mm  
2.8  
4.85  
0.8  
0.3 0.02  
3.5  
3.5  
2.54 1.27 5.08  
Notes  
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.  
2. Plastic surface within circle area D may protrude 0.04 mm maximum.  
1
REFERENCES  
OUTLINE  
EUROPEAN  
PROJECTION  
ISSUE DATE  
VERSION  
IEC  
JEDEC  
JEITA  
00-07-03  
03-03-12  
SOT523-1  
Fig 17. Package outline SOT523-1 (DBS9P)  
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Preliminary data sheet  
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20 W stereo power amplifier with volume control  
16. Soldering  
16.1 Introduction to soldering through-hole mount packages  
This text gives a brief insight to wave, dip and manual soldering. A more in-depth account  
of soldering ICs can be found in our Data Handbook IC26; Integrated Circuit Packages  
(document order number 9398 652 90011).  
Wave soldering is the preferred method for mounting of through-hole mount IC packages  
on a printed-circuit board.  
16.2 Soldering by dipping or by solder wave  
Driven by legislation and environmental forces the worldwide use of lead-free solder  
pastes is increasing. Typical dwell time of the leads in the wave ranges from  
3 seconds to 4 seconds at 250 °C or 265 °C, depending on solder material applied, SnPb  
or Pb-free respectively.  
The total contact time of successive solder waves must not exceed 5 seconds.  
The device may be mounted up to the seating plane, but the temperature of the plastic  
body must not exceed the specified maximum storage temperature (Tstg(max)). If the  
printed-circuit board has been pre-heated, forced cooling may be necessary immediately  
after soldering to keep the temperature within the permissible limit.  
16.3 Manual soldering  
Apply the soldering iron (24 V or less) to the lead(s) of the package, either below the  
seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is  
less than 300 °C it may remain in contact for up to 10 seconds. If the bit temperature is  
between 300 °C and 400 °C, contact may be up to 5 seconds.  
16.4 Package related soldering information  
Table 10. Suitability of through-hole mount IC packages for dipping and wave soldering  
methods  
Package  
Soldering method  
Dipping  
Wave  
CPGA, HCPGA  
-
suitable  
DBS, DIP, HDIP, RDBS, SDIP, SIL  
PMFP[2]  
suitable  
-
suitable[1]  
not suitable  
[1] For SDIP packages, the longitudinal axis must be parallel to the transport direction of the printed-circuit  
board.  
[2] For PMFP packages hot bar soldering or manual soldering is suitable.  
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Preliminary data sheet  
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20 W stereo power amplifier with volume control  
17. Revision history  
Table 11. Revision history  
Document ID  
Release date  
20060428  
Data sheet status  
Change notice  
Supersedes  
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Preliminary data sheet  
-
-
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Preliminary data sheet  
Rev. 01 — 28 April 2006  
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Philips Semiconductors  
20 W stereo power amplifier with volume control  
18. Legal information  
18.1 Data sheet status  
Document status[1][2]  
Product status[3]  
Development  
Definition  
Objective [short] data sheet  
This document contains data from the objective specification for product development.  
This document contains data from the preliminary specification.  
This document contains the product specification.  
Preliminary [short] data sheet Qualification  
Product [short] data sheet Production  
[1]  
[2]  
[3]  
Please consult the most recently issued document before initiating or completing a design.  
The term ‘short data sheet’ is explained in section “Definitions”.  
The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status  
information is available on the Internet at URL http://www.semiconductors.philips.com.  
malfunction of a Philips Semiconductors product can reasonably be expected  
18.2 Definitions  
to result in personal injury, death or severe property or environmental  
damage. Philips Semiconductors accepts no liability for inclusion and/or use  
of Philips Semiconductors products in such equipment or applications and  
therefore such inclusion and/or use is for the customer’s own risk.  
Draft — The document is a draft version only. The content is still under  
internal review and subject to formal approval, which may result in  
modifications or additions. Philips Semiconductors does not give any  
representations or warranties as to the accuracy or completeness of  
information included herein and shall have no liability for the consequences of  
use of such information.  
Applications — Applications that are described herein for any of these  
products are for illustrative purposes only. Philips Semiconductors makes no  
representation or warranty that such applications will be suitable for the  
specified use without further testing or modification.  
Short data sheet — A short data sheet is an extract from a full data sheet  
with the same product type number(s) and title. A short data sheet is intended  
for quick reference only and should not be relied upon to contain detailed and  
full information. For detailed and full information see the relevant full data  
sheet, which is available on request via the local Philips Semiconductors  
sales office. In case of any inconsistency or conflict with the short data sheet,  
the full data sheet shall prevail.  
Limiting values — Stress above one or more limiting values (as defined in  
the Absolute Maximum Ratings System of IEC 60134) may cause permanent  
damage to the device. Limiting values are stress ratings only and operation of  
the device at these or any other conditions above those given in the  
Characteristics sections of this document is not implied. Exposure to limiting  
values for extended periods may affect device reliability.  
Terms and conditions of sale — Philips Semiconductors products are sold  
subject to the general terms and conditions of commercial sale, as published  
pertaining to warranty, intellectual property rights infringement and limitation  
of liability, unless explicitly otherwise agreed to in writing by Philips  
18.3 Disclaimers  
General — Information in this document is believed to be accurate and  
reliable. However, Philips Semiconductors does not give any representations  
or warranties, expressed or implied, as to the accuracy or completeness of  
such information and shall have no liability for the consequences of use of  
such information.  
Semiconductors. In case of any inconsistency or conflict between information  
in this document and such terms and conditions, the latter will prevail.  
No offer to sell or license — Nothing in this document may be interpreted  
or construed as an offer to sell products that is open for acceptance or the  
grant, conveyance or implication of any license under any copyrights, patents  
or other industrial or intellectual property rights.  
Right to make changes — Philips Semiconductors reserves the right to  
make changes to information published in this document, including without  
limitation specifications and product descriptions, at any time and without  
notice. This document supersedes and replaces all information supplied prior  
to the publication hereof.  
18.4 Trademarks  
Notice: All referenced brands, product names, service names and trademarks  
are the property of their respective owners.  
Suitability for use — Philips Semiconductors products are not designed,  
authorized or warranted to be suitable for use in medical, military, aircraft,  
space or life support equipment, nor in applications where failure or  
19. Contact information  
For additional information, please visit: http://www.semiconductors.philips.com  
For sales office addresses, send an email to: [email protected]  
TFA9843AJ_1  
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.  
Preliminary data sheet  
Rev. 01 — 28 April 2006  
18 of 19  
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TFA9843AJ  
Philips Semiconductors  
20 W stereo power amplifier with volume control  
20. Contents  
packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
Please be aware that important notices concerning this document and the product(s)  
described herein, have been included in section ‘Legal information’.  
© Koninklijke Philips Electronics N.V. 2006.  
All rights reserved.  
Date of release: 28 April 2006  
Document identifier: TFA9843AJ_1  
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