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TDA7473 데이터시트(PDF) 3 Page - STMicroelectronics |
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TDA7473 데이터시트(HTML) 3 Page - STMicroelectronics |
3 / 5 page Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VSUP DC Supply Voltage 18 V VS Channel Power Supply 6 V TOP Operating Temperature Range -25 to 80 °C TJ Maximum Junction Temperature 150 °C THERMAL DATA Symbol Parameter Value Unit Rth j-amb Thermal Resistance Junction to Ambient Max. 50 (*) °C/W Rth j-pins Thermal Resistance Junction to Pins Typ. 17 °C/W (*) with 6cm 2 of copper heatsink on board. ELECTRICAL CHARACTERISTICS (@ VSUP = 6V, Tamb =25 °C, unless otherwise specified.) Symbol Parameter Test Condition Min. Typ. Max. Unit VSUP Supply Voltage 6 15 V Maximum Power Dissipation (1) 1.5 W Quiescent current (2) from VS V(pin 4, 11, 18, 25) =5V 20 35 mA Quiescent current (2) from 5V V(pin 1) = 5V, R2 = ∞ 1.8 2.5 mA Quiescent current (2) from VSUP VSUP = 15V 1.3 2.5 mA VSUP =6V 1 2 mA Stand-by current from 5V (pin 1) V(pin 1) = 5V, R2 = ∞ 1.2 2 mA Stand-by current from VSUP VSUP = 15V 0.4 0.8 mA VSUP = 6V 0.3 0.6 mA CHANNELS BTL Peak output current for channels 0.6 A VSAT VSAT HIGH SIDE I = 0.6A; VS = 5V 1.3 1.6 A VSAT LOW SIDE I = 0.6A; VS = 5V 0.7 0.9 A Output voltage swing peak-to- peak VS = 5V, Iout = 0.6A 5.5 6 Vpp Voltage gain for channels 25.5 26.5 27.5 dB Channels output offset voltage -180 -50 100 mV VST-BY Channel St-By Threshold Active --> St-By 0.65 Vreg 0.75 Vreg 0.85 Vreg V St-By --> Active 0.50 Vreg V REGULATORS V5V Vpin 1 Iout = 0.2A 4.85 5.05 5.25 V Min drop 5V --> REG Iout = 0.2A 1.2 1.3 V IDRIV Output current from DRIV for pass-transistor driving 50 100 mA Output current from DRIV in stand-by 20 50 80 mA DROP VSUP --> DRIV IDRIV = 20mA 0.2 0.25 V Threshold voltage for overcurr. protection (VSUP - OC) VSUP = 6V 190 230 270 mV VSUP = 12V 120 160 200 mV VSUP = 15V 80 100 120 mV VREG Regulator Voltage R1, R2 = 1K Ω 2.45 2.53 2.65 V Min REG voltage (settable) 1.8 2 V Max REG voltage (settable) 3.6 3.8 V Output current from REG in Stand-by R1, R2 = 1K Ω 20 mA (1) @ Tamb =70 °C, on board 6cm2 copper heatsink (2) INx = COMM; no loads on the regulators outputs (3) Device is active when St-By = Low TDA7473 3/5 Obsolete Product(s) - Obsolete Product(s) |
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