2003 Feb 12 11
Philips Semiconductors Preliminary specification
70 W high efficiency power amplifier
with diagnostic facility
TDA1562Q; TDA1562ST;
TDA1562SD
V
th2+
threshold voltage 2+ class-B → class-H −−4.2 V
V
th2−
threshold voltage 2− class-H → class-B 3.3 −−V
V
stH2
hysteresis (V
th2+
− V
th1−
)−200 − mV
PIN STAT AS OUTPUT
I
st(mute)
mute acknowledge sink current 2.2 −−mA
V
st(mute)
mute acknowledge output voltage I
st
= 2.2 mA −−0.5 V
I
st(clB)
class-B operation output current 15 −−µA
V
st(clB)
class-B operation output voltage I
st
=15µA 2.0 − 3.0 V
I
st(clH)
class-H operation source current −140 −−µA
V
st(clH)
class-H operation output voltage I
st
= −140 µAV
P
−2.5 −−V
T
c(th)
threshold case temperature sensor − 120 −°C
Diagnostic output DIAG
V
DIAG
output voltage active LOW −−0.6 V
R
L
load resistance for open load detection 100 −−Ω
T
j(th)
threshold junction temperature sensor − 145 −°C
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Fig.6 Supply voltage transfer characteristic.
handbook, full pagewidth
V
PH1
V
th−
V
th+
MGL267
fast mute
on
V
P
