STA333BW View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
STA333BW
STMicroelectronics
'STA333BW' PDF : 67 Pages View PDF
STA333BW
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
RdsON
gP
gN
Idss
tr
tf
IVCC
IVDD
ILIM
ISCP
VUVP
tmin
DR
Output power BTL
THD = 1%
-
THD = 10%
-
Output power SE
Power P-channel or N-channel MOSFET
Power P-channel RdsON matching
Power N-channel RdsON matching
Power P-channel / N-channel leakage
Rise time
Fall time
THD = 1%, RL= 4 Ω -
THD = 10%, RL= 4 Ω -
ld = 0.75 A
-
ld = 0.75 A
-
ld = 0.75 A
-
VCC = 20 V
-
Resistive load,
-
see Figure 3 below -
Supply current from VCC in power down PWRDN = 0
-
Supply current from VCC in operation
PWRDN = 1
-
Supply current FFX processing
Internal clock =
49.152 MHz
-
Overcurrent limit
(1)
2.2
Short -circuit protection
Undervoltage protection
RL = 0 Ω
2.7
-
-
Output minimum pulse width
No load
20
Dynamic range
-
-
16
-
W
20
-
7
-
W
9
-
-
250 mΩ
100 -
%
100 -
%
-
1
µA
-
10
ns
-
10
ns
0.3
-
µA
15
-
mA
55
-
mA
3.0
-
A
3.6
-
A
-
4.3
V
40
60
ns
100 -
dB
SNR
Signal to noise ratio, ternary mode
Signal to noise ratio binary mode
A-Weighted
-
-
100 -
dB
-
90
-
dB
THD+N Total harmonic distortion + noise
FFX stereo mode,
Po = 1 W
-
0.2
-
%
f = 1 kHz
XTALK
Crosstalk
FFX stereo mode,
<5 kHz
One channel driven -
80
-
dB
at 1 W, other channel
measured
Peak efficiency, FFX mode
η
Peak efficiency, binary modes
Po = 2 x 20 W
into 8 Ω
-
90
-
%
Po = 2 x 9 W into 4 Ω
+ 1 x 20 W into 8 Ω
-
87
-
1. Limit the current if overcurrent warning detect adjustment bypass is enabled (register bit CONFC.OCRB on
page 28). When disabled refer to the ISCP.
Doc ID 13773 Rev 3
13/67
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