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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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ACT8935 Arkusz danych(PDF) 1 Page - Active-Semi, Inc |
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ACT8935 Arkusz danych(HTML) 1 Page - Active-Semi, Inc |
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1 / 2 page  Innovative PowerTM - 1 - www.active-semi.com Copyright © 2009Active-Semi, Inc. ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of Philips Electronics. Product Brief, 24-Sep-09 Advanced Information―All Information Subject to Change ACT8935 SYSTEM BLOCK DIAGRAM Active-Semi Nine Channel ActivePathTM Power Management IC FEATURES • ActivePathTM Li+ Charger with System Power Selection • Seven Integrated Regulators − 2×900mA High Efficiency Step-Down DC/DCs − 700mA High Efficiency Step-Down DC/DC − 4×150mA Low Noise, High PSRR LDOs • Flexible Interrupt Control • I2CTM Serial Interface • Minimal External Components • Compatible with USB or AC-Adapter Charging • 5x5mm, Thin-QFN (TQFN55-40) Package − Only 0.75mm Height, − RoHS Compliant APPLICATIONS • Personal Navigation Devices • Portable Media Players • Smart Phones GENERAL DESCRIPTION The ACT8935 is a complete, cost effective, highly- efficient ActivePMUTM power management solution that is ideal for a wide range of high performance portable handheld applications such as personal navigation devices (PNDs). This device integrates the ActivePathTM complete battery charging and management system with seven power supply channels. The ActivePath architecture automatically selects the best available input supply for the system. If the external input source is not present or the system load current is more than the input source can provide, the ActivePath supplies additional current from the battery to the system. The charger is a complete, thermally-regulated, stand-alone single- cell Li+ charger. REG1, REG2, and REG3 are fixed-frequency, current-mode step-down DC/DC converters. REG1 and REG3 are capable of supplying up to 900mA of output current, while REG2 supports up to 700mA. REG4, REG5, REG6, and REG7 are high performance, low-noise, low-dropout linear regulators that output up to 150mA each. Finally, an I2C serial interface provides programmability for the DC/DC converters and LDOs. Pb Pb-free OUT2 0.6V to 3.9V Up to 700mA OUT5 0.6V to 3.9V Up to 150mA System Control OUT4 0.6V to 3.9V Up to 150mA PBIN SCL ActivePathTM & Single-Cell Li+ Battery Charger Li+ Battery VSYS OUT1 0.6V to 3.9V Up to 900mA PWRHLD SDA OUT7 0.6V to 3.9V Up to 150mA OUT6 0.6V to 3.9V Up to 150mA PWREN nRSTO nIRQ nPBSTAT nLBO TH ACT8935 CHGIN ACIN nSTAT ISET REG6 LDO REG5 LDO REG4 LDO REG2 Step-Down DC/DC REG1 Step-Down DC/DC REG7 LDO OUT3 0.6V to 3.9V Up to 900mA REG3 Step-Down DC/DC LBI CHGLEV EXTON PMU PMU PMU TM Active |
Podobny numer części - ACT8935 |
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Podobny opis - ACT8935 |
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