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TPA3250D2DDWR Folha de dados(PDF) 7 Page - Texas Instruments |
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TPA3250D2DDWR Folha de dados(HTML) 7 Page - Texas Instruments |
7 / 41 page TPA3250D2 www.ti.com SLASE99 – DECEMBER 2015 7.5 Electrical Characteristics PVDD_X = 32 V, GVDD_X = 12 V, VDD = 12 V, TA (Ambient temperature) = 25°C, fS = 450 kHz, unless otherwise specified. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INTERNAL VOLTAGE REGULATOR AND CURRENT CONSUMPTION Voltage regulator, only used as reference DVDD VDD = 12 V 3 3.3 3.6 V node Voltage regulator, only used as reference AVDD VDD = 12 V 7.8 V node Operating, 50% duty cycle 40 IVDD VDD supply current mA Idle, reset mode 13 50% duty cycle 25 IGVDD_X Gate-supply current per full-bridge mA Reset mode 3 50% duty cycle with 10µH Output Filter Inductors 12.5 mA IPVDD_X PVDD idle current per full bridge Reset mode, No switching 1 mA ANALOG INPUTS RIN Input resistance 24 k Ω VIN Maximum input voltage swing 7 V IIN Maximum input current 1 mA G Inverting voltage Gain VOUT/VIN 20 dB OSCILLATOR Nominal, Master Mode 2.58 2.7 2.82 fOSC(IO+) AM1, Master Mode FPWM × 6 2.85 3 3.15 MHz AM2, Master Mode 3.45 3.6 3.75 VIH High level input voltage 1.86 V VIL Low level input voltage 1.45 V OUTPUT-STAGE MOSFETs Drain-to-source resistance, low side (LS) 60 100 m Ω TJ = 25°C, Includes metallization resistance, RDS(on) GVDD = 12 V Drain-to-source resistance, high side (HS) 60 100 m Ω I/O PROTECTION Undervoltage protection limit, GVDD_x and Vuvp,VDD,GVDD 9.5 V VDD Vuvp,VDD, GVDD,hyst (1) 0.6 V OTW Overtemperature warning, CLIP_OTW(1) 115 125 135 °C Temperature drop needed below OTW OTWhyst (1) temperature for CLIP_OTW to be inactive 25 °C after OTW event. OTE(1) Overtemperature error 145 155 165 °C OTE-OTW(differential) OTE-OTW differential 30 °C (1) A reset needs to occur for FAULT to be OTEhyst (1) 25 °C released following an OTE event OLPC Overload protection counter fPWM = 450 kHz 2.3 ms Resistor – programmable, nominal peak current in IOC Overcurrent limit protection 14 A 1 Ω load, ROCP = 22 kΩ Resistor – programmable, peak current in 1 Ω load, IOC(LATCHED) Overcurrent limit protection 14 A ROCP = 47kΩ IDCspkr DC Speaker Protection Current Threshold BTL current imbalance threshold 1.5 A Time from switching transition to flip-state induced IOCT Overcurrent response time 150 ns by overcurrent. Connected when RESET is active to provide IPD Output pulldown current of each half 3 mA bootstrap charge. Not used in SE mode. (1) Specified by design. Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: TPA3250D2 |
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