Philips TDA8566 User Manual

TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier with differential inputs and diagnostic outputs
Rev. 06 — 15 October 2007 Product data sheet

1. General description

The TDA8566 is an integrated class-B output amplifier which is available in several packages. TDA8566TH is contained in a 20-lead small outline plastic package. The TDA8566TH1 is a 24-lead small outline plastic package which is pin compatible with the I2C-bus controlled amplifier TDA1566TH for one board layout. TDA8566Q is a 17-pin DIL-bent-SIL package.

2. Features

n Differential inputs n Very high Common Mode Rejection Ratio (CMRR) n High common mode input signal handling n Requires very few external components n High output power n 4 and 2 load driving capability n Low offset voltage at output n Fixed gain n Diagnostic facility (distortion, short-circuit and temperature pre-warning) n Good ripple rejection n Mode select switch (operating, mute and standby) n Load dump protection n Short-circuit proof to ground, to VP and across the load n Low power dissipation in any short-circuit condition n Thermally protected n Reverse polarity safe n Protected against electrostatic discharge n No switch-on/switch-off plops n Low thermal resistance n TDA8566TH1 is pin compatible with TDA1566TH
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3. Quick reference data

Table 1. Quick reference data
VP= 14.4 V; T specified.
Symbol Parameter Conditions Min Typ Max Unit
V
P
I
ORM
I
q
I
stb
Z
i
P
o
SVRR supply voltage ripple
α
cs
CMRR common mode rejection
G
v
V
n(o)
[1] The circuit is DC adjusted at VP= 6 V to 18 V and AC operating at VP= 8.5 V to 18 V. [2] V [3] Common mode rejection ratio measured at the output (over RL) with both inputs tied together;
[4] Noise measured in a bandwidth of 20 Hz to 20 kHz.
supply voltage repetitive peak output
current quiescent current RL= ∞Ω - 115 180 mA standby current - 0.1 10 µA input impedance differential 100 120 150 k output power RL=4Ω; THD = 10 % 21 25 - W
rejection channel separation Po= 25 W; Rs=10k 45 50 - dB
ratio closed loop voltage gain 25 26 27 dB noise output voltage operating; Rs=0
ripple=Vripple(max)
V
3.5 V (RMS); fi= 100 Hz to 10 kHz; Rs=0Ω.
common
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
=25°C; fi= 1 kHz; measured in test circuit of Figure 9; unless otherwise
amb
[1]
6 14.4 18 V
- - 7.5 A
=2Ω; THD = 10 % 33 40 - W
R
L
[2]
operating
R
= 2 V (p-p); Rs=0Ω.
=0
s
50 60 - dB
[3]
60 75 - dB
[4]
- 85 120 µV

4. Ordering information

Table 2. Ordering information
Type number Package
Name Description Version
TDA8566TH HSOP20 plastic, heatsink small outline package; 20 leads; low stand-off height SOT418-3 TDA8566TH1 HSOP24 plastic, heatsink small outline package; 24 leads; low stand-off height SOT566-3 TDA8566Q DBS17P plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm) SOT243-1
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 2 of 21
NXP Semiconductors

5. Block diagram

TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
V
V
P2
P1
IN1+
IN1
n.c.
SGND
IN2+
mute switch
V
A
2.3 k
mute switch
V
A
60
60
k
k
2.3 k
standby
switch
V
V
ref
A
standby
reference
voltage
C
M
2.3 k (9×) C
M
2.3 k (9×)
TDA8566
mute
switch
CLIP
OUT1+
OUT1
MODE
CLIP
1×
DIAG
DIAG
mute
60
60
k
k
reference voltage
mute switch
C
M
HEATTAB
IN2
V
A
2.3 k
2.3 k
mute switch
V
A
2.3
(1)
k
(9×) C
M
2.3 k (9×)
PGND2 PGND1
OUT2+
OUT2
mgu358
(1) Pin HEATTAB is available in TDA8566TH1 only.
Fig 1. Block diagram
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 3 of 21
NXP Semiconductors

6. Pinning information

6.1 Pinning

TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
24 23
V
P2
22
n.c. IN2
21
OUT2 n.c.
20
PGND2 n.c.
19
OUT2+ n.c.
18
OUT1 MODE
17
PGND1 n.c.
16
OUT1+ n.c.
15
n.c. IN1+
14
V
P1
13
CLIP SGND
TDA8566TH1
001aah015
20
MODE DIAG
19
V
P2
18
OUT2 IN2
17
PGND2 n.c.
16
OUT2+ n.c.
15
OUT1 n.c.
14
PGND1 n.c.
13
OUT1+ IN1+
12
V
P1
11
CLIP SGND
TDA8566TH
001aag902
1 2
IN2+ 3 4 5 6 7 8 9
IN1
10
HEATTAB DIAG
Fig 2. Pin configuration TDA8566TH Fig 3. Pin configuration TDA8566TH1
1
IN1+
2
IN1
3
SGND
4
CLIP
5
V
P1
n.c.
V
MODE
DIAG
IN2+ IN2
6 7 8
9 10 11 12 13
P2
14 15 16 17
TDA8566Q
OUT1+
PGND1
OUT1
OUT2+
PGND2
OUT2
1 2
IN2+ 3 4 5 6 7 8 9
10 11
IN1
12
001aah059
Fig 4. Pin configuration TDA8566Q
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 4 of 21
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6.2 Pin description

Table 3. Pin description TDA8566TH and TDA8566TH1
Symbol Pin Description
DIAG 1 1 short-circuit and temperature pre-warning
IN2+ 2 2 channel 2 input positive IN2 3 3 channel 2 input negative n.c. 4 4 not connected n.c. 5 5 not connected n.c. 6 6 not connected n.c. 7 - not connected n.c. - 8 not connected n.c. - 9 not connected IN1+ 8 10 channel 1 input positive IN1 9 11 channel 1 input negative SGND 10 12 signal ground CLIP 11 13 clip detection output V
P1
n.c. - 15 not connected OUT1+ 13 16 channel 1 output positive PGND1 14 17 power ground 1 OUT1 15 18 channel 1 output negative n.c. - - not connected OUT2+ 16 19 channel 2 output positive PGND2 17 20 power ground 2 OUT2 18 21 channel 2 output negative n.c. - 22 not connected V
P2
MODE 20 7 mode select switch input (standby/mute/operating) HEATTAB - 24 connect to ground, used for test purposes only
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
TDA8566TH TDA8566TH1
diagnostic output
12 14 supply voltage 1
19 23 supply voltage 2
Table 4. Pin description TDA8566Q
Symbol Pin Description
IN1+ 1 channel 1 input positive IN1 2 channel 1 input negative SGND 3 signal ground CLIP 4 clip detection output V
P1
OUT1+ 6 channel 1 output positive PGND1 7 power ground 1 OUT1 8 channel 1 output negative n.c. 9 not connected
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 5 of 21
5 supply voltage 1
NXP Semiconductors
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
Table 4. Pin description TDA8566Q
Symbol Pin Description
OUT2+ 10 channel 2 output positive PGND2 11 power ground 2 OUT2 12 channel 2 output negative V
P2
MODE 14 mode select switch input (standby/mute/operating) DIAG 15 short-circuit and temperature pre-warning diagnostic output IN2+ 16 channel 2 input positive IN2 17 channel 2 input negative
13 supply voltage 2

7. Functional description

The TDA8566 contains 2 identical amplifiers and can be used for BTL applications. The gain of each amplifier is fixed at 26 dB. Special features of this device are:
Mode select switch
Clip detection
Short-circuit diagnostic
Temperature pre-warning
Open-collector diagnostic outputs
Differential inputs
…continued
7.1 Mode select switch (pin MODE)
Standby: low supply current
Mute: input signal suppressed
Operating: normal on condition
Since this pin has a very low input current (< 40 µA), a low-cost supply switch can be applied. To avoid switch-on plops, it is advisable to keep the amplifier in the mute mode for a period of 150 ms (charging the input capacitors at pins IN1+, IN1, IN2+ and IN2). This can be realized by using a microcontroller or by using an external timing circuit as illustrated in Figure 8.
7.2 Clip detection (pin CLIP)
When clipping occurs at one or more output stages, the dynamic distortion detector becomes active and pin CLIP goes LOW. This information can be used to drive a sound processor or a DC volume control to attenuate the input signal and so limit the level of distortion. The output level of pin CLIP is independent of the number of channels that are being clipped. The clip detection circuit is disabled in a short-circuit condition, so if a fault condition occurs at the outputs, pin CLIP will remain at a HIGH level. The clip detection waveforms are illustrated in Figure 5.
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 6 of 21
NXP Semiconductors
V
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
V
O
(V)
0
CLIP
(V)
0
t (s)
mgu357
Fig 5. Clip detection waveforms
7.3 Short-circuit diagnostic (pin DIAG)
When a short-circuit occurs at one or more outputs to ground or to the supply voltage, the output stages are switched off until the short-circuit is removed and the device is switched on again (with a delay of approximately 20 ms after the removal of the short-circuit). During this short-circuit condition, pin DIAG is continuously LOW.
When a short-circuit occurs across the load of one or both channels, the output stages are switched off for approximately 20 ms. After that time the load condition is checked during approximately 50 µs to see whether the short-circuit is still present. Due to this duty cycle of 50 µs/20 ms the average current consumption during the short-circuit condition is very low (approximately 40 mA). During this condition, pin DIAG is LOW for 20 ms and HIGH for 50 µs; see Figure 6. The power dissipation in any short-circuit condition is very low.
current
in
output
stage
t (s)
t (s)
mgu360
V
DIAG
(V)
short-circuit over the load
20 ms
50 µs
Fig 6. Short-circuit diagnostic timing diagram
7.4 Temperature pre-warning (pin DIAG)
When the virtual junction temperature (Tvj) reaches 145 °C, pin DIAG will become continuously LOW.

7.5 Open-collector diagnostic outputs

Pins DIAG and CLIP are open-collector outputs, therefore more devices can be tied together. Pins DIAG and CLIP can also be tied together. An external pull-up resistor is required.
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 7 of 21
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7.6 Differential inputs

The input stage is a high-impedance fully differential balanced input stage that is also capable of operating in a single-ended mode with one of the inputs capacitivelycoupled to an audio ground. It should be noted that if a source resistance is added (input voltage dividers) the CMRR degrades to lower values.

8. Limiting values

Table 5. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
V
P
I
OSM
I
ORM
T
stg
T
vj
T
amb
V
psc
V
rp
P
tot
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
supply voltage operating - 18 V
non-operating - 30 V load dump protection;
during 50 ms; t
2.5 ms
r
non-repetitive peak output current
repetitive peak output current
storage temperature 55 +150 °C virtual junction temperature - 150 °C ambient temperature 40 +85 °C short-circuit safe voltage - 18 V reverse polarity voltage - 6.0 V total power dissipation - 60 W
-45V
-10A
- 7.5 A

9. Thermal characteristics

Table 6. Thermal characteristics
Thermal characteristics in accordance with IEC 60747-1.
Symbol Parameter Conditions Typ Unit
R
th(j-c)
R
th(j-a)
Fig 7. Equivalent thermal resistance network
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 8 of 21
thermal resistance from junction to case see Figure 7 1.3 K/W thermal resistance from junction to ambient in free air 40 K/W
virtual junction
output 1
2.2 K/W 2.2 K/W
case
output 2
0.2 K/W
001aaa155
NXP Semiconductors

10. Static characteristics

Table 7. Static characteristics
VP= 14.4 V; T
Symbol Parameter Conditions Min Typ Max Unit
Supply
V
P
I
q
Operating condition
V
MODE
I
MODE
V
O
V
OO
Mute condition
V
MODE
V
O
V
OO
V
OO
Standby condition
V
MODE
I
stb
Diagnostic
V
DIAG
amb
supply voltage quiescent current RL= ∞Ω - 115 180 mA
mode select switch level
mode select switch current
output voltage output offset voltage - - 100 mV
mode select switch level
output voltage output offset voltage - - 60 mV output offset voltage
difference
mode select switch level
standby current - 0.1 10 µA
diagnostic output voltage
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
=25°C; measured in test circuit of Figure 9; unless otherwise specified.
[1]
6 14.4 18 V
8.5 - V
V
= 14.4 V - 15 40 µA
MODE
[2]
- 7.0 - V
3.3 - 6.4 V
[2]
- 7.0 - V
with respect to
--60mV
operating condition
0- 2V
during any fault
- - 0.6 V
condition
P
V
[1] The circuit is DC adjusted at VP= 6 V to 18 V and AC operating at VP= 8.5 V to 18 V. [2] At VP= 18 V to 30 V the DC output voltage is 0.5VP.
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 9 of 21
NXP Semiconductors

11. Dynamic characteristics

Table 8. Dynamic characteristics
VP= 14.4 V; T otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
P
o
THD total harmonic
B power bandwidth THD = 0.5 %; P
f
ro(l)
f
ro(h)
G
v
SVRR supply voltage
Z
i
| input impedance
|∆Z
i
V
n(o)
α
cs
| channel unbalance - - 1 dB
|∆G
v
=25°C; RL=2Ω; fi= 1 kHz; measured in test circuit of Figure 9; unless
amb
output power THD = 0.5 % 25 30 - W
distortion
low frequency roll off
high frequency roll off
closed loop voltage gain
ripple rejection
input impedance differential 100 120 150 k
mismatch noise output
voltage
channel separation Po= 25 W; Rs=10k 45 50 - dB
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
THD = 10 % 33 40 - W THD = 30 % 45 55 - W
= 13.5 V; THD = 0.5 % - 25 - W
V
P
= 13.5 V; THD = 10 % - 35 - W
V
P
THD = 0.5 %; R THD = 10 %; R THD = 30 %; R
= 13.5 V;
V
P
THD = 0.5 %; R
= 13.5 V;THD = 10 %;
V
P
R
=4
L
= 1 W - 0.1 - %
P
o
= 0.6 V
V
CLIP
= 1 W; RL=4 - 0.05 - %
P
o
with respect to 25 W
1dB
1 dB 20 - - kHz
operating mute standby
single-ended 50 60 75 k
operating; Rs=0 operating; R mute; independent of R
=4 16 19 - W
L
=4 21 25 - W
L
=4 28 35 - W
L
-14-W
=4
L
-22-W
[1]
-8-%
= 1dB
o
-20to 20000
[2]
-25-Hz
25 26 27 dB
[3]
50 60 - dB
[3]
50--dB
[3]
80--dB
-2-%
[4]
- 85 120 µV
=10k
s
[4]
- 100 - µV
[4]
s
-60-µV
-Hz
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 10 of 21
NXP Semiconductors
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
Table 8. Dynamic characteristics
VP= 14.4 V; T
=25°C; RL=2Ω; fi= 1 kHz; measured in test circuit of Figure 9; unless
amb
otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
V
o(mute)
output signal voltage in mute
CMRR common mode
rejection ratio
[1] Dynamic distortion detector active; pin CLIP is LOW. [2] Frequency response externally fixed. [3] V
ripple=Vripple(max)
[4] Noise measured in a bandwidth of 20 Hz to 20 kHz. [5] Common mode rejection ratio measured at the output (over RL) with both inputs tied together;
V
[6] Common mode rejection ratio measured at the output (over RL) with both inputs tied together;
V
3.5 V (RMS); fi= 100 Hz to 10 kHz; Rs=0Ω.
common
3.5 V (RMS); fi= 1 kHz; Rs=45kΩ. The mismatch of the input coupling capacitors is excluded.
common

12. Application information

12.1 Diagnostic output

Special care must be taken in the PCB layout to separate pin CLIP from pins IN1+, IN1, IN2+ and IN2 to minimize the crosstalk between the CLIP output and the inputs.
…continued
Vin=V
=0
R
s
=45k
R
s
= 2 V (p-p); Rs=0Ω.
= 1 V (RMS) - - 2 mV
in(max)
[5]
60 75 - dB
[6]
40--dB

12.2 Mode select switch

To avoid switch-on plops, it is advisable to keep the amplifier in the mute mode during 150 ms (charging of the input capacitors at pins IN1+, IN1, IN2+ and IN2). The circuit in Figure 8 slowly ramps-up the voltage at the mode select switch pin when switching on and results in fast muting when switching off.
Fig 8. Mode select switch circuit
+V
P
S
10 k
+
47 µF
100
100 k
mode select switch
mgd102
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 11 of 21
NXP Semiconductors

13. Test information

TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
V
+
MODE
_
220 nF
Rs/2
V
in1
220 nF
Rs/2
IN1+
IN1
k
k
SGND
220 nF
Rs/2
IN2+
MODE
60
60
V
ref
V
P1
TDA8566
CLIP
DETECTOR
DIAGNOSTIC
INTERFACE
V
P2
100
OUT1+
OUT1
2200 µF
R
L1
(16V)
VPV
10 k
P
10 k
nF
CLIP
DIAG
+
_
V
=
P
14.4 V
OUT2+
60
k
R
V
in2
Rs/2
220 nF
IN2
60
k
OUT2
L2
PGND1 PGND2
mgu359
Fig 9. Stereo BTL test diagram
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 12 of 21
NXP Semiconductors

14. Package outline

TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
HSOP20: plastic, heatsink small outline package; 20 leads; low stand-off height
D
c
y
D
1
1
pin 1 index
10
D
2
E
1
x
A
2
A
4
E
E
2
H
E
SOT418-3
A
X
v M
A
Q
A
(A3)
L
p
θ
detail X
20
Z
DIMENSIONS (mm are the original dimensions)
A
UNIT
mm
Notes
1. Limits per individual lead.
2. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
A
max.
3.5
3.5 0.35
3.2
OUTLINE VERSION
SOT418-3
2
e
(1)
bpc
A
A
4
3
+0.08
0.53
0.04
0.40
IEC JEDEC JEITA
0.32
0.23
D
16.0
15.8
11
w M
b
p
0 5 10 mm
scale
(2)
D
13.0
12.6
1
REFERENCES
D
1.1
0.9
(2)
E
E
2
6.2
11.1
5.8
10.9
e
E
2
1
2.9
2.5
1.27
H
14.5
13.9
E
L
1.1
0.8
p
Q
v
1.7
0.25w0.25
1.5
EUROPEAN
PROJECTION
x
0.03
yZ
2.5
0.07
2.0
ISSUE DATE
02-02-12 03-07-23
θ
8° 0°
Fig 10. Package outline SOT418-3 (HSOP20)
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 13 of 21
NXP Semiconductors
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
HSOP24: plastic, heatsink small outline package; 24 leads; low stand-off height
D
c
y
D
1
1
pin 1 index
12
D
2
E
1
x
A
2
A
4
E
E
2
H
E
SOT566-3
A
X
v M
A
Q
A
(A3)
L
p
θ
detail X
24
Z
DIMENSIONS (mm are the original dimensions)
A
UNIT
mm
Notes
1. Limits per individual lead.
2. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
A
max.
3.5
3.5 0.35
3.2
OUTLINE VERSION
SOT566-3
2
e
(1)
bpc
A
A
4
3
+0.08
0.53
0.04
0.40
IEC JEDEC JEITA
0.32
0.23
D
16.0
15.8
13
w M
b
p
0 5 10 mm
scale
(2)
D
13.0
12.6
1
REFERENCES
D
1.1
0.9
(2)
E
E
2
6.2
11.1
5.8
10.9
e
E
2
1
2.9
2.5
H
E
14.5
1
13.9
L
1.1
0.8
p
Q
v
1.7
0.25w0.25
1.5
EUROPEAN
PROJECTION
x
0.03
yZ
2.7
0.07
2.2
ISSUE DATE
03-02-18 03-07-23
θ
8° 0°
Fig 11. Package outline SOT566-3 (HSOP24)
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 14 of 21
NXP Semiconductors
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
DBS17P: plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm)
non-concave
D
d
j
x
E
h
view B: mounting base side
B
L
3
SOT243-1
D
h
A
2
E
A
117
e
Z
DIMENSIONS (mm are the original dimensions)
UNIT A e
mm
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
OUTLINE VERSION
SOT243-1
A2bpcD
17.0
4.6
4.4
0.75
0.60
15.5
1
e
(1)
deD
0.48
24.0
23.6
20.0
19.6
0.38
IEC JEDEC JEITA
w M
b
p
(1)
E
h
12.2
10 2.54
11.8
REFERENCES
0 5 10 mm
scale
1
1.27
e
5.08
L
E
2
h
6
3.4
3.1
Q
m
LL3m
12.4
2.4
11.0
1.6
c
e
2
Qj
2.1
4.3
1.8
EUROPEAN
PROJECTION
v M
v
0.8
x
0.4w0.03
ISSUE DATE
99-12-17 03-03-12
(1)
Z
2.00
1.45
Fig 12. Package outline SOT243-1 (DBS17P)
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 15 of 21
NXP Semiconductors

15. Soldering

This text provides a very brief insight into a complex technology.A more in-depth account of soldering ICs can be found in Application Note
soldering description”

15.1 Introduction to soldering

Soldering is one of the most common methods through which packages are attached to Printed Circuit Boards (PCBs), to form electrical circuits. The soldered joint provides both the mechanical and the electrical connection. There is no single soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and Surface Mount Devices (SMDs) are mixed on one printed wiring board; however, it is not suitable for fine pitch SMDs. Reflow soldering is ideal for the small pitches and high densities that come with increased miniaturization.
15.2 Wave and reflow soldering
Wave soldering is a joining technology in which the joints are made by solder coming from a standing wave of liquid solder. The wave soldering process is suitable for the following:
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
AN10365 “Surface mount reflow
.
Through-hole components
Leaded or leadless SMDs, which are glued to the surface of the printed circuit board
Not all SMDs can be wave soldered. Packages with solder balls, and some leadless packages which have solder lands underneath the body, cannot be wave soldered. Also, leaded SMDs with leads having a pitch smaller than ~0.6 mm cannot be wave soldered, due to an increased probability of bridging.
The reflow soldering process involves applying solder paste to a board, followed by component placement and exposure to a temperature profile. Leaded packages, packages with solder balls, and leadless packages are all reflow solderable.
Key characteristics in both wave and reflow soldering are:
Board specifications, including the board finish, solder masks and vias
Package footprints, including solder thieves and orientation
The moisture sensitivity level of the packages
Package placement
Inspection and repair
Lead-free soldering versus PbSn soldering

15.3 Wave soldering

Key characteristics in wave soldering are:
Process issues, such as application of adhesive and flux, clinching of leads, board
transport, the solder wave parameters, and the time during which components are exposed to the wave
Solder bath specifications, including temperature and impurities
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 16 of 21
NXP Semiconductors
15.4 Reflow soldering
Key characteristics in reflow soldering are:
Lead-freeversus SnPb soldering; note that a lead-free reflow process usually leads to
Solder paste printing issues including smearing, release, and adjusting the process
Reflow temperature profile; this profile includes preheat, reflow (in which the board is
Table 9. SnPb eutectic process (from J-STD-020C)
Package thickness (mm) Package reflow temperature (°C)
< 2.5 235 220 2.5 220 220
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
higher minimum peak temperatures (see Figure 13) than a PbSn process, thus reducing the process window
window for a mix of large and small components on one board
heated to the peak temperature) and cooling down. It is imperative that the peak temperature is high enough for the solder to make reliable solder joints (a solder paste characteristic). In addition, the peak temperature must be low enough that the packages and/or boards are not damaged. The peak temperature of the package depends on package thickness and volume and is classified in accordance with
Table 9 and 10
Volume (mm3) < 350 350
Table 10. Lead-free process (from J-STD-020C)
Package thickness (mm) Package reflow temperature (°C)
Volume (mm3) < 350 350 to 2000 > 2000
< 1.6 260 260 260
1.6 to 2.5 260 250 245 > 2.5 250 245 245
Moisture sensitivity precautions, as indicated on the packing, must be respected at all times.
Studies have shown that small packages reach higher temperatures during reflow soldering, see Figure 13.
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 17 of 21
NXP Semiconductors
Fig 13. Temperature profiles for large and small components
maximum peak temperature
temperature
MSL: Moisture Sensitivity Level
= MSL limit, damage level
minimum peak temperature
= minimum soldering temperature
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
peak
temperature
time
001aac844
For further information on temperature profiles, refer to Application Note
“Surface mount reflow soldering description”
.
AN10365
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 18 of 21
NXP Semiconductors
2 × 40 W/2 stereo BTL car radio power amplifier
TDA8566

16. Revision history

Table 11. Revision history
Document ID Release date Data sheet status Change notice Supersedes
TDA8566_6 20071015 Product data sheet - TDA8566Q_5
TDA8566TH_2
Modifications:
TDA8566Q_5 20010221 Product specification - ­TDA8566TH_2 20030708 Product specification - -
The format of this data sheet has been redesigned to comply with the new identity
guidelines of NXP Semiconductors.
Legal texts have been adapted to the new company name where appropriate.
Section 9 “Thermal characteristics”: changed value of R
to 1.3 K/W
th(j-c)
Figure 7: values updated
Included TDA8566TH1 and TDA8566Q in the data sheet
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 19 of 21
NXP Semiconductors

17. Legal information

17.1 Data sheet status

TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
Document status
Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification.
[1] Please consult the most recently issued document before initiating or completing a design. [2] The term ‘short data sheet’ is explained in section “Definitions”. [3] 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
[1][2]
Product status
17.2 Definitions
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. NXP 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.
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 NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail.

17.3 Disclaimers

General — Information in this document is believed to be accurate and
reliable. However, NXP 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.
Right to make changes — NXP 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.
Suitability for use — NXP 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
[3]
http://www.nxp.com.
Definition
malfunction of a NXP Semiconductors product can reasonably be expectedto result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk.
Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification.
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 — NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at
http://www.nxp.com/profile/terms, including those pertaining to warranty,
intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP 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, conveyanceor implication of any license under any copyrights, patents or other industrial or intellectual property rights.

17.4 Trademarks

Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners.

18. Contact information

For additional information, please visit: http://www.nxp.com For sales office addresses, send an email to: salesaddresses@nxp.com
TDA8566_6 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 06 — 15 October 2007 20 of 21
NXP Semiconductors

19. Contents

1 General description. . . . . . . . . . . . . . . . . . . . . . 1
2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2
4 Ordering information. . . . . . . . . . . . . . . . . . . . . 2
5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6 Pinning information. . . . . . . . . . . . . . . . . . . . . . 4
6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5
7 Functional description . . . . . . . . . . . . . . . . . . . 6
7.1 Mode select switch (pin MODE) . . . . . . . . . . . . 6
7.2 Clip detection (pin CLIP). . . . . . . . . . . . . . . . . . 6
7.3 Short-circuit diagnostic (pin DIAG). . . . . . . . . . 7
7.4 Temperature pre-warning (pin DIAG) . . . . . . . . 7
7.5 Open-collector diagnostic outputs . . . . . . . . . . 7
7.6 Differential inputs . . . . . . . . . . . . . . . . . . . . . . . 8
8 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 8
9 Thermal characteristics. . . . . . . . . . . . . . . . . . . 8
10 Static characteristics. . . . . . . . . . . . . . . . . . . . . 9
11 Dynamic characteristics . . . . . . . . . . . . . . . . . 10
12 Application information. . . . . . . . . . . . . . . . . . 11
12.1 Diagnostic output . . . . . . . . . . . . . . . . . . . . . . 11
12.2 Mode select switch . . . . . . . . . . . . . . . . . . . . . 11
13 Test information. . . . . . . . . . . . . . . . . . . . . . . . 12
14 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 13
15 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
15.1 Introduction to soldering . . . . . . . . . . . . . . . . . 16
15.2 Wave and reflow soldering . . . . . . . . . . . . . . . 16
15.3 Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 16
15.4 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 17
16 Revision history. . . . . . . . . . . . . . . . . . . . . . . . 19
17 Legal information. . . . . . . . . . . . . . . . . . . . . . . 20
17.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 20
17.2 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
17.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
17.4 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 20
18 Contact information. . . . . . . . . . . . . . . . . . . . . 20
19 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
TDA8566
2 × 40 W/2 stereo BTL car radio power amplifier
Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’.
© NXP B.V. 2007. All rights reserved.
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 15 October 2007 Document identifier: TDA8566_6
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