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TPS23770PWPR Datasheet(PDF) 3 Page - Texas Instruments |
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TPS23770PWPR Datasheet(HTML) 3 Page - Texas Instruments |
3 / 41 page www.ti.com RECOMMENDED OPERATING CONDITIONS (1) (2) DISSIPATION RATINGS TABLE TPS23750 TPS23770 SLVS590B – JULY 2005 – REVISED FEBRUARY 2008 All voltage values are with respect to VSS unless otherwise noted. MIN NOM MAX UNIT VDD Input voltage range(3) COM, SEN, SENP 0 67 V FB, COMP, MODE, BL 0 VBIAS Input voltage range AUX to COM 0 16 V RSP to RSN 0 1 AUX 0 2 Sourcing current VBIAS 0 2 mA COMP 0 2 QG GATE loading 20 nC AUX load capacitance 0.8 25 µF VBIAS load capacitance 0.08 1.5 µF RFREQ 30 300 k Ω TJ Operating junction temperature range -40 125 °C TA Operating ambient temperature range -40 85 °C (1) RSN, COM, and RTN should be tied together. SENP should be tied to VDD except for the buck configuration, where it should be tied to the output positive rail. (2) TMR, FREQ, CLASS, DET, VBIAS, and GATE should not be externally driven. (3) Junction temperature may be a constraining factor for high bias power designs. θ JP θ JC θ JA θ JA θ JA MAXIMUM POWER RATING PACKAGE °C/W(1) °C/W °C/W(2) °C/W(3) °C/W(4) (W)(5) PWP (TSSOP-20) 1.4 26.62 32.6 151.9 73.8 1.2 (1) Thermal resistance junction to pad. (2) See TI document SLMA002 for recommended layout. This is a best case, zero airflow number. (3) JEDEC method with low-k board (2 signal layers) and power pad not soldered (worst case). (4) JEDEC method with high-k board (4 layers, 2 signal and 2 planes) and power pad not soldered. (5) Based on TI recommended layout and 85 °C ambient. Copyright © 2005–2008, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS23750 TPS23770 |
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