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TPS65721RSNT Fiches technique(PDF) 3 Page - Texas Instruments |
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TPS65721RSNT Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 50 page TPS65720 TPS65721 www.ti.com SLVS979 – OCTOBER 2009 RECOMMENDED OPERATING CONDITIONS (continued) MIN NOM MAX UNIT CINAC Input capacitor at AC(1) 0.1 1 μF CBAT Capacitor at BAT(1) 0.1 4.7 μF CSYS Capacitor at SYS(1) 4.7 10 μF CINDCDC1 Input capacitor at VINDCDC1 (1); if connected to SYS, only one 4.7μF cap required for 4.7 μF SYS and CINDCDC1 COUTDCDC1 Output capacitor at VDCDC1 (1) 4.7 10 22 μF CINLDO1 Input capacitor at VINLDO1(1) 2.2 μF COUTLDO1 Output capacitor at LDO1(1) 2.2 μF RISET Minimum RISET value for proper operation; lower values may trigger the short circuit 700 Ω protection on ISET TA Operating ambient temperature –40 85 °C TJ Operating junction temperature –40 125 °C ELECTRICAL CHARACTERISTICS VSYS = 3.6V, VDCDC1 = 2.05V, PFM mode, L = 3.3μH, COUTDCDC1 = 4.7μF, VINLDO1=2.05V, VLDO1=1.85V, TA = –40°C to 85°C typical values apply in a temperature range of 10°C to 35°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT DCDC1 enabled, IOUT = 0mA. PFM mode enabled; device not 36 45 μA Operating quiescent current when only DCDC1 switching IQ converter is enabled DCDC1 enabled, IOUT = 0mA. PWM mode 2.8 mA Current into BAT pin (PFM mode) 33 50 μA Operating quiescent current when LDO1 and IQ DCDC1 are enabled Current into VINLDO1 13 18 μA Shutdown current after voltage was applied to BAT For VINLDO1=0V (LDO1 supplied by DCDC1); powered by 4 13 μA but device never enabled before (shipping mode) VBAT=3.6V For VINLDO1=0V (LDO1 supplied by DCDC1); powered by ISD Shutdown current after first power-up 12 17 μA VBAT=3.6V For VINLDO1 ≠0V (LDO1 supplied by SYS); powered by Shutdown current after first power-up 12 18 μA VBAT=3.6V Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS65720 TPS65721 |
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