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STA381BWS bảng dữ liệu(PDF) 23 Page - STMicroelectronics

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STA381BWS
Electrical specifications
Doc ID 018937 Rev 6
23/171
3.5
Electrical specifications for the power section
The specifications given in this section are valid for the operating conditions: VCC =18V,
f= 1 kHz, fsw = 384 kHz, Tamb = 25° C and RL = 8 Ω, unless otherwise specified.
Table 7.
Electrical specifications - power section
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Po
Output power BTL
Digital limited(1)
20
W
Output power SE
Digital limited(1)
5
Output power SE RL = 4 Ω
Digital limited(1)
9
RdsON
Power Pchannel/Nchannel MOSFET
ld = 1.5 A
120
m
Ω
gP
Power Pchannel RdsON matching
ld = 1.5 A
95
%
gN
Power Nchannel RdsON matching
ld = 1.5 A
95
%
Idss
Power Pchannel/Nchannel leakage
10
µA
ILDT
Low current dead time (static)
Resistive load(2)
815
ns
tr
Rise time
Resistive load(2)
10
18
ns
tf
Fall time
Resistive load(2)
10
18
ns
Ivcc
Supply current from Vcc in power-down PWRDN = 0
0.1
1
µA
Supply current from Vcc in operation
PCM Input signal = -60 dBfs,
Switching frequency = 384 kHz,
No LC filters
52
60
mA
Ilim
Overcurrent limit
4
5
6.5
A
UVL
Undervoltage protection
3.5
4.3
V
tmin
Output minimum pulse width
No load
20
30
60
ns
DR
Dynamic range
100
dB
SNR
Signal-to-noise ratio, ternary mode
A-weighted
100
dB
Signal-to-noise ratio binary mode
A-weighted
90
dB
THD+N
Total harmonic distortion + noise
FFX stereo mode, Po = 1 W,
f=1kHz,
0.2
%
XTALK
Crosstalk
FFX stereo mode,
<5 kHz, one channel driven at
1 W and other channel
measured
80
dB
η
Peak efficiency, FFX mode
Po = 2 x 20 W
into 8
Ω
90
%
1.
The related THD can be defined through appropriate DRC settings (see section: 4.3: STCompressorTM)
2.
Refer to Figure 3: Test circuit.



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