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TPS2342PFPG4 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS2342PFPG4 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 52 page TPS2342 SLUS572F − OCTOBER, 2003 − REVISED JANUARY 2007 5 www.ti.com DISSIPATION RATING TABLE PACKAGE TA THERMAL RESISTANCE JUNCTION TO CASE ΘJC THERMAL RESISTANCE JUNCTION TO AMBIENT (NOTE 1) ΘJA THERMAL RESISTANCE JUNCTION TO AMBIENT (NOTE 2) ΘJA HTQFP−80 (PFP) −40 _C to 85 _C 1.1 _C/W 19.3 _C/W 29.4 _C/W Note 1: Thermal resistance measured using an 8-layer PC board following the layout recommendations in TI Publication PowerPAD Thermally Enhanced Package Technical Brief SLMA002. Note 2: Thermal resistance measured using an 8-layer PC board using only top PC board copper to spread the heat. SERIAL MODE PINOUT 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 1234 5 6789 10 11 12 13 14 15 16 17 18 19 20 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 BUTTONA SWA ATTLEDA PWRLEDA SODA SIDA RSTA LCA CLKA DIGGND1 DIGVCC CLKB LCB RSTB SIDB SODB PWRLEDB ATTLEDB SWB BUTTONB PWRGND2 V5IN VIOGA 3VSA 3VISA 5V3VGA PMEA PMEOA PMEOB PMEB 3VAUXGA 3VAUXA 3VAUXI 3VAUXGB 3VAUXB 5V3VGB 3VISB 3VSB VIOGB PWRGND1 PFP PACKAGE (TOP VIEW) The heat-conducting pad on the underside of the package is electrically connected to M12VINA. Either connect the heat-conducting pad to −12 VIN or leave this unconnected. Do not connect the heat-conducting pad to any other power plane or to ground. |
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