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TPA3221 Datasheet(PDF) 8 Page - Texas Instruments |
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TPA3221 Datasheet(HTML) 8 Page - Texas Instruments |
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8 / 39 page  8 TPA3221 SLASEE9 – JUNE 2017 www.ti.com Product Folder Links: TPA3221 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Electrical Characteristics (continued) PVDD_X = 30 V, VDD = 5 V, GVDD = 5 V, TC (Case temperature) = 75 °C, fS = 400 kHz, unless otherwise specified. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Vovp,PVDD Overvoltage protection limit, PVDD_x 34 V Vovp,PVDD,hyst (2) 0.45 V OTW Overtemperature warning, CLIP_OTW(2) 115 125 135 °C OTWhyst (2) Temperature drop needed below OTW temperature for CLIP_OTW to be inactive after OTW event. 25 °C OTE(2) Overtemperature error 145 155 165 °C OTEhyst (2) A reset needs to occur for FAULT to be released following an OTE event 20 °C OTE-OTW(differential) (2) OTE-OTW differential 30 °C OLPC Overload protection counter fPWM = 400 kHz (1024 PWM cycles) 2.56 ms IOC, BTL Overcurrent limit protection, speaker output current Nominal peak current in 1 Ω load 10 A IOC, PBTL 20 A IOC, BTL (LATCHED) Nominal peak current in 1 Ω load 10 A IOC, PBTL (LATCHED) 20 A IDCspkr, BTL DC Speaker Protection Current Threshold BTL current imbalance threshold 1.5 A IDCspkr, PBTL PBTL current imbalance threshold 3 A IOCT Overcurrent response time Time from switching transition to flip-state induced by overcurrent. 150 ns IPD Output pulldown current of each half Connected when RESET is active to provide bootstrap charge. Not used in SE mode. 3 mA |
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