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PDF TDA8566Q Data sheet ( Hoja de datos )
| Número de pieza | TDA8566Q | |
| Descripción | 2 x 25 W BTL stereo car radio power amplifier with differential inputs and diagnostic outputs | |
| Fabricantes | NXP Semiconductors | |
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INTEGRATED CIRCUITS
DATA SHEET
TDA8566Q
2 × 25 W BTL stereo car radio
power amplifier with differential
inputs and diagnostic outputs
Product specification
Supersedes data of 1996 Apr 11
File under Integrated Circuits, IC01
1998 Sep 23
1 page  
Philips Semiconductors
2 × 25 W BTL stereo car radio power amplifier
with differential inputs and diagnostic outputs
Product specification
TDA8566Q
Short-circuit diagnostic (pin 15)
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 15 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 approximately 50 µs the load
condition is again checked to see if the short-circuit is still
present. Due to this duty cycle of 50 µs/20 ms the average
current consumption during this short-circuit condition is
very low (approximately 40 mA). During this short-circuit
condition, pin 15 is low for 20 ms and high for 50 µs (see
Fig.4). The power dissipation in any short-circuit condition
is very low.
Temperature pre-warning (pin 15)
When the junction temperature (Tvj) reaches 145 °C,
pin 15 will become continuously low.
Open-collector outputs
Pins 4 and 15 are open-collector outputs, therefore more
devices can be tied together. Pins 4 and 15 can also be
tied together. An external pull-up resistor is required.
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 capacitively
coupled to an audio ground. It should be noted that if a
source resistance is added (input voltage dividers) the
CMRR degrades to lower values.
handbook, halfpagVe out
0
V4
VP
0
MGD103
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Fig.3 Clip detection waveforms.
handbook, full pagewidthcurrent
in
output
stage
V15
VP
short-circuit over the load
20 ms
1998 Sep 23
50 µs
Fig.4 Short-circuit diagnostic timing diagram.
5
MGA707
t
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5 Page 
Philips Semiconductors
2 × 25 W BTL stereo car radio power amplifier
with differential inputs and diagnostic outputs
Product specification
TDA8566Q
SOLDERING
Introduction
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our “Data Handbook IC26; Integrated Circuit Packages”
(order code 9398 652 90011).
Soldering by dipping or by wave
The maximum permissible temperature of the solder is
260 °C; solder at this temperature must not be in contact
with the joint for more than 5 seconds. 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.
Repairing soldered joints
Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, 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 and 400 °C, contact may be up to 5 seconds.
DEFINITIONS
Data sheet status
Objective specification
Preliminary specification
Product specification
This data sheet contains target or goal specifications for product development.
This data sheet contains preliminary data; supplementary data may be published later.
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1998 Sep 23
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet TDA8566Q.PDF ] | |
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