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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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STA381BWS Scheda tecnica(PDF) 23 Page - STMicroelectronics |
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STA381BWS Scheda tecnica(HTML) 23 Page - STMicroelectronics |
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23 / 171 page  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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