TDA8580 Philips Semiconductors, TDA8580 Datasheet - Page 6

• Manufacturer Part Number: TDA8580
• Description: Multi-purpose power amplifier
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FUNCTIONAL DESCRIPTION
The TDA8580 is a multi-purpose power amplifier with four
amplifiers which can be connected in the following
configurations with high output power and low distortion (at
minimum quiescent current);
The amplifier can be switched on (play or ‘mute’) and off
(‘standby’) by the MUTE and STANDBY pins (for
interfacing directly with a microcontroller). One-pin
operation is also possible by applying a voltage greater
than 8 V to the ‘standby’/’mute’/’on’ selection pin (pin 5) to
switch the amplifier in ‘on’ mode.
Special attention is given to the dynamic behaviour as
follows:
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
Note
1. The maximum supply voltage under short circuit conditions is 28 V with an additional resistor in the supply line of
1998 Feb 25
V
V
I
I
V
V
P
T
T
T
OSM
ORM
SYMBOL
j
stg
amb
Dual bridge-tied load (BTL) amplifiers
Quad single-ended amplifiers
Dual single-ended amplifiers and one bridge-tied load
amplifier.
Noise suppression during engine start.
No plops when switching from ‘standby’ to ‘on’.
Slow offset change between ‘mute’ and ‘on’ (controlled
by MUTE and STANDBY pins).
Low noise levels, which are independent of the supply
voltage.
P
DIAG
rev
sc
tot
Multi-purpose power amplifier
tbf .
supply voltage
voltage on diagnostic pin
non-repetitive peak output current
repetitive peak output current
reverse polarity voltage
AC and DC short-circuit voltage of output
pins across loads and to ground or supply
pins
total power dissipation
junction temperature
storage temperature
operating ambient temperature
PARAMETER
operating
load dump protected;
see Fig.3
no external series
resistor in supply line;
note 1
6
Protections are included to avoid the IC being damaged at:
Diagnostics are available for the following conditions
(see Figs 4 to 7).
Over temperature: T > 150 C.
Short-circuit of the output pin(s) to ground or supply rail.
When short-circuited, the power dissipation is limited.
A missing-current limiter which limits the maximum short
circuit output current to PGND or V
The dissipation and speaker current will be minimized
because the short-circuited amplifier is switched off. The
chip temperature is limited by the temperature
protection.
ESD protection (Human Body Model 3000 V, Machine
Model 300 V).
Energy handling. A DC voltage of 6 V can be connected
to the output of any amplifier while the supply pins are
short-circuited to ground. No high DC current will flow
from the supply pins of the amplifier.
Amplifier in ‘mute’
Chip temperature greater than 145 C
Distortion over 2% due to clipping
Short-circuit protection active.
CONDITIONS
8
55
40
MIN.
Preliminary specification
28
45
18
6
4.5
6
24
75
150
+150
+150
P
MAX.
pins to 1 A.
TDA8580
V
V
V
A
A
V
V
W
C
C
C
UNIT