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STA381BWS Datasheet(PDF) 24 Page - STMicroelectronics |
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STA381BWS Datasheet(HTML) 24 Page - STMicroelectronics |
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24 / 174 page  Electrical specifications STA381BWS 24/174 DocID018937 Rev 7 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 , 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 Digital limited(1) 9 RdsON Power Pchannel/Nchannel MOSFET ld = 1.5 A 120 m 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) 8 15 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 = 1 kHz, 0.2 % XTALK Crosstalk FFX stereo mode, <5 kHz, one channel driven at 1 W and other channel measured 80 dB Peak efficiency, FFX mode Po = 2 x 20 W into 8 90 % 1. The related THD can be defined through appropriate DRC settings (see section: 4.3: STCompressorTM) 2. Refer to Figure 3: Test circuit. Obsolete Product(s) - Obsolete Product(s) |
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