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STA326 Folha de dados(PDF) 6 Page - STMicroelectronics

Nome de Peças STA326
Descrição Electrónicos  2.1 HIGH EFFICIENCY DIGITAL AUDIO SYSTEM
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA326 Folha de dados(HTML) 6 Page - STMicroelectronics

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4.3 POWER ELECTRICAL CHARACTERISTCS
(VL = 3.3V; Vcc = 30V; Tamb = 25°C unless otherwise specified)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
RdsON
Power Pchannel/Nchannel
MOSFET RdsON
Id=1A
200
270
m
Idss
Power Pchannel/Nchannel
leakage Idss
Vcc=35V
50
µA
gN
Power Pchannel RdsON Matching Id=1A
95
%
gP
Power Nchannel RdsON
Matching
Id=1A
95
%
Dt_s
Low current Dead Time (static)
see test circuit no.1; see fig. 1
10
20
ns
td ON
Turn-on delay time
Resistive load
100
ns
td OFF
Turn-off delay time
Resistive load
100
ns
tr
Rise time
Resistive load
25
ns
tf
Fall time
Resistive load; as fig. 1
25
ns
VCC
Supply voltage operating voltage
10
36
V
IVCC-
PWRDN
Supply Current from Vcc in
PWRDN
PWRDN = 0
3
mA
IVCC-hiz
Supply current from Vcc in Tri-
state
Vcc=30V; Tri-state
22
mA
IVCC
Supply current from Vcc in
operation
(both channel switching)
Input pulse width = 50% Duty;
Switching Frequency = 384Khz;
No LC filters;
80
mA
Iout-sh
Overcurrent protection threshold
(short circuit current limit)
46
A
VUV
Undervoltage protection threshold
7
V
tpw-min
Output minimum pulse width
No Load
70
150
ns
Po
Output Power
(Full-bridge mode)
THD = 10%
RL = 4
Ω; VS = 17V
RL = 8
Ω; VS = 32V
30
60
W
W
Po
Output Power
(Binary half-bridge mode)
THD = 1%
RL = 4
Ω; VS = 17V
RL = 8
Ω; VS = 32V
25
46
W
W
Po
Mono mode output power
THD = 10%
RL = 4
Ω; VS = 32V
60
120
W
W
THD+N
Total Harmonic Distortion + Noise
Po = 1 Wrms
0.07
%
Po = 40 Wrms
0.1
SNR
Signal to Noise Ratio
A-Weighted
DDX® Mode
99
dB
Signal to Noise Ratio,
Binary Half-Bridge Mode
Binary Mode
A-Weighted
92
dB
η
Efficiency
DDX® Mode
89
%
Binary
87
%


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