tda1555q, Ham- CB Radio, Karty katalogowe
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INTEGRATED CIRCUITS
DATA SHEET
TDA1555Q
4 x 11 W single-ended or 2 x 22 W
power amplifier with distortion
detector
Product specification
File under Integrated Circuits, IC01
May 1992
Philips Semiconductors
Product specification
4 x 11 W single-ended or 2 x 22 W power
amplifier with distortion detector
TDA1555Q
GENERAL DESCRIPTION
The TDA1555Q is an integrated class-B output amplifier in a 17-lead single-in-line (SIL) plastic power package.
The circuit contains 4 x 11 W single-ended or 2 x 22 W bridge amplifiers. The device is primarily developed for car radio
applications.
Features
·
Requires very few external components
·
Thermally protected
·
Flexibility in use
-
Quad single-ended or stereo BTL
·
Reverse polarity safe
·
Capability to handle high energy on outputs (V
P
= 0 V)
·
High output power
·
Protected against electrostatic discharge
·
Low offset voltage at outputs (important for BTL)
·
Fixed gain
·
No switch-on/switch-off plop
·
Low thermal resistance
·
Good ripple rejection
·
Identical inputs (inverting and non-inverting)
·
Mute/stand-by switch
·
Flexible leads
·
Load dump protection
·
Distortion detector.
·
AC and DC short-circuit-safe to ground and V
P
QUICK REFERENCE DATA
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply voltage range
operating
V
P
6.0
14.4
18.0
V
Repetitive peak output current
I
ORM
-
-
4
A
Total quiescent current
I
tot
-
80
160
mA
Stand-by current
I
sb
-
0.1
100
m
A
Stereo BTL application
Output power
R
L
= 4
W
; THD = 10% P
o
20
22
-
W
Supply voltage ripple rejection
RR
48
-
-
dB
Noise output voltage
(RMS value)
R
S
= 0
W
V
no(rms)
-
70
-
m
V
Input impedance
|Z
I
|
25
30
38
k
W
DC output offset voltage
D
V
O
|
-
-
100
mV
Quad single-ended application
Output power
THD = 10%
R
L
= 4
W
P
o
-
6
-
W
R
L
= 2
W
P
o
-
11
-
W
Supply voltage ripple rejection
RR
48
-
-
dB
Noise output voltage
(RMS value)
R
S
= 0
W
V
no(rms)
-
50
-
m
V
Input impedance
|Z
I
|
50
60
75
k
W
PACKAGE OUTLINE
17-lead SIL-bent-to-DIL; plastic power (SOT243R); SOT243-1; 1996 July 23.
May 1992
2
|
Philips Semiconductors
Product specification
4 x 11 W single-ended or 2 x 22 W power
amplifier with distortion detector
TDA1555Q
Fig.1 Block diagram.
May 1992
3
Philips Semiconductors
Product specification
4 x 11 W single-ended or 2 x 22 W power
amplifier with distortion detector
TDA1555Q
PINNING
1
NINV1
non-inverting input 1
9
n.c.
not connected
2
INV1
inverting input 1
10 OUT3
output 3
3
GND
ground (signal)
11 GND2
power ground 2 (substrate)
4
RR
supply voltage ripple rejection
12 OUT4
output 4
5
P1
positive supply voltage 1
13 V
P2
positive supply voltage 2
6
OUT1
output 1
14 M/SS
mute/stand-by switch
7
GND1
power ground 1 (substrate)
15 DD
distortion detector
8
OUT2
output 2
16 INV2
inverting input 2
17 NINV2
non-inverting input 2
FUNCTIONAL DESCRIPTION
The TDA1555Q contains four identical amplifiers with differential input stages (two inverting and two non-inverting) and
can be used for single-ended or bridge applications. The gain of each amplifier is fixed at 20 dB (26 dB in BTL). Special
features of this device are:
Mute/stand-by switch
·
low stand-by current (< 100
m
A)
·
low mute/stand-by switching current (low cost supply switch)
·
mute facility
Distortion detector
·
At onset of clipping of one or more channels the distortion detector (pin 15) becomes active. This information can be
used to drive a sound processor or DC volume control to decrease the input signal and so limit distortion.
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
PARAMETER
CONDITIONS
SYMBOL
MIN.
MAX.
UNIT
Supply voltage
operating
V
P
-
18
V
non-operating
V
P
-
30
V
load dump protected
during 50 ms;
t
r
³
2.5 ms
V
P
-
45
V
Non-repetitive peak output current
I
OSM
-
6
A
Repetitive peak output current
I
ORM
-
4
A
Storage temperature range
T
stg
-
55
+
150
°
C
Junction temperature
T
j
-
150
°
C
AC and DC short-circuit-safe voltage
V
PSC
-
18
V
Energy handling capability at outputs
V
P
= 0 V
-
200
mJ
Reverse polarity
V
PR
-
6
V
Total power dissipation
see Fig.2
P
tot
-
60
W
May 1992
4
Philips Semiconductors
Product specification
4 x 11 W single-ended or 2 x 22 W power
amplifier with distortion detector
TDA1555Q
Fig.2 Power derating curve.
DC CHARACTERISTICS
V
P
= 14.4 V; T
amb
= 25
°
C; measurements taken using Fig.4; unless otherwise specified
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply
Supply voltage range
note 1
V
P
6.0
14.4
18.0
V
Total quiescent current
I
tot
-
80
160
mA
DC output voltage
note 2
V
O
-
6.9
-
V
DC output offset voltage
D
V
O
|
-
-
100
mV
Mute/stand-by switch
Switch-on voltage level
V
ON
8.5
-
-
V
Mute condition
V
mute
3.3
-
6.4
V
Output signal in mute
V
I
= 1 V (max.);
position
f = 1 kHz
V
O
-
-
2
mV
DC output offset voltage
(between pins 6 to 8
and 10 to 12)
|
D
V
O
|
-
-
100
mV
Stand-by condition
V
sb
0
-
2
V
DC current in stand-by condition
I
sb
-
-
100
m
A
Switch-on current
I
sw
-
12
40
m
A
May 1992
5
|
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