Philips TDA1562ST - Manual (Page 2)

2003 Feb 12 2
Philips Semiconductors Preliminary specification
70 W high efficiency power amplifier
with diagnostic facility TDA1562Q; TDA1562ST;
TDA1562SD
FEATURES
•
Very high output power, operating from a single low
supply voltage
•
Low power dissipation, when used for music signals
•
Switches to low output power at too high case
temperatures
•
Few external components
•
Fixed gain
•
Differential inputs with high common mode rejection
•
Mode select pin (on, mute and standby)
•
Status I/O pin (class-H, class-B and fast mute)
•
All switching levels with hysteresis
•
Diagnostic pin with information about:
– Dynamic Distortion Detector (DDD)
– Any short-circuit at outputs
– Open load detector
– Temperature protection.
•
No switch-on or switch-off plops
•
Fast mute on supply voltage drops
•
Quick start option (e.g. car-telephony/navigation)
•
Low (delta) offset voltage at the outputs
•
Load dump protection
•
Short-circuit safe to ground, supply voltage and across
the load
•
Low power dissipation in any short-circuit condition
•
Protected against electrostatic discharge
•
Thermally protected
•
Flexible leads.
GENERAL DESCRIPTION
The TDA1562 is a monolithic integrated 70 W/4
Ω
Bridge-Tied Load (BTL) class-H high efficiency power
amplifier in a 17 lead DIL-bent-SIL plastic power package.
The device can be used for car audio systems (e.g.
car radios and boosters) as well as mains fed applications
(e.g. midi/mini audio combinations and TV sound).
QUICK REFERENCE DATA
V
P
= 14.4 V; R
L
= 4
Ω
; R
s
= 0
Ω
; f = 1 kHz; T
amb
= 25
°
C; unless otherwise specified.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
P
supply voltage operating; note 1 8 14.4 18 V
non-operating
− −
30 V
load dump
− −
45 V
I
q
quiescent current on and mute; R
L
= open
circuit
−
110 150 mA
I
stb
standby current standby
−
3 50
µ
A

V
OO

output offset voltage on and mute
− −
100 mV
∆
V
OO

delta output offset voltage on
↔
mute
− −
30 mV
G
v
voltage gain 25 26 27 dB

Z
i(dif)

differential input impedance 90 150
−
k
Ω
P
o
output power THD = 0.5% 45 55
−
W
THD = 10% 60 70
−
W
THD total harmonic distortion P
o
= 1 W
−
0.03
−
%
P
o
= 20 W
−
0.06
−
%
DDD active
−
2.1
−
%