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STA335W View Datasheet(PDF) - STMicroelectronics

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STA335W Datasheet PDF : 43 Pages
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STA335W
Electrical specifications
3.5
Electrical specifications for the power section
The specifications given in this section are valid for the operating conditions: VCC = 18 V,
f = 1 kHz, fsw = 384 kHz, Tamb = 25° C and RL = 8 Ω, unless otherwise specified.
Table 7.
Symbol
Electrical specifications - power section
Parameter
Conditions
Min Typ Max Unit
Po Output power BTL
THD = 1%
THD = 10%
16
W
20
RdsON
Power Pchannel/Nchannel MOSFET
(total bridge)
ld = 1.5 A
180 250 mΩ
gP Power Pchannel RdsON matching
ld = 1.5 A
gN Power Nchannel RdsON matching
ld = 1.5 A
Idss Power Pchannel/Nchannel leakage
VCC = 20 V
ILDT Low current dead time (static)
IHDT High current dead time (dynamic)
tr
Rise time
tf
Fall time
Resistive load(1)
Iload = 1.5 A(1)
Resistive load(1)
Resistive load(1)
Vcc Supply voltage operating voltage
Supply current from Vcc in power down PWRDN = 0
95
%
95
%
10
μA
8
15
ns
15
30
ns
10
18
ns
10
18
ns
5
26
V
0.1
1
mA
Ivcc
Supply current from Vcc in operation
PCM Input signal = -
60 dBfs,
Switching frequency
= 384 kHz,
No LC filters
52
60
mA
Ivdd
Supply current FFX processing (reference Internal clock =
only)
49.152 MHz
Ilim Overcurrent limit
(2)
55
70
mA
3.0
3.8
A
Isc
Short circuit protection
Hi-Z output
4.0
4.2
A
UVL Under voltage protection
3.5
4.3
V
tmin Output minimum pulse width
DR Dynamic range
No load
20
30
60
ns
100
dB
SNR
Signal to noise ratio, ternary mode
Signal to noise ratio binary mode
A-Weighted
100
dB
90
dB
FFX stereo mode,
<5 kHz
PSSR Power supply rejection ratio
VRIPPLE = 1 V RMS
80
dB
Audio input =
dither only
THD+N Total harmonic distortion + noise
FFX stereo mode,
Po = 1 W
f = 1 kHz
0.2
%
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