Philips TDA8928J Manual De Usuario
2004 May 05
10
Philips Semiconductors
Preliminary specification
Power stage 2 x 10 or 1 x 20 W class-D
audio amplifier
audio amplifier
TDA8928J
14 SWITCHING CHARACTERISTICS
V
V
P
=
±
12.5 V; T
amb
= 25
°
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
PWM outputs (pins OUT1 and OUT2); see Fig.3
t
r
rise time
−
30
−
ns
t
f
fall time
−
30
−
ns
t
blank
blanking time
−
70
−
ns
t
PD
propagation delay
from pin SW1 (SW2) to
pin OUT1 (OUT2)
pin OUT1 (OUT2)
−
200
−
ns
t
W(min)
minimum pulse width
−
220
270
ns
R
ds(on)
on-resistance of the output
transistors
transistors
−
0.2
0.4
Ω
handbook, full pagewidth
MGW145
PWM
output
(V)
VDD
VSS
0 V
tblank
tf
tr
1/fosc
100 ns
VSTAB
VSS
VSW
(V)
tPD
VSTAB
VSS
VREL
(V)
Fig.3 Timing diagram PWM output, switch and release signals.