ACT8810 ACTIVE-SEMI | Alldatasheet

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Technical content

Innovative PowerTM - 1 - www.active-semi.com Copyright © 2009 Active-Semi, Inc. ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of Philips Electronics. Product Brief, 12-Mar-09 Advanced Information―All Information Subject to Change Eight Channel ActivePathTM Power Management IC SYSTEM BLOCK DIAGRAM OUT4 0.9V to 3.3V Up to 360mA OUT3 Adjustable, or 0.8V to 4.4V Up to 0.55A System Control OUT1 Adjustable, or 0.8V to 4.4V Up to 1.3A OUT5 0.9V to 3.3V Up to 360mA nIRQ ON1 ON3 nPBIN ActivePathTM Single-Cell Li+ Battery Charger Battery Programmable Up to 1A VSYS CHG_IN CHGLEV DCCC OUT2 Adjustable, or 0.8V to 4.4V Up to 1.0A nSTAT0 ACIN nRSTO SCL SDA VSEL ISET OUT6 0.9V to 3.3V Up to 30mA REG6 RTC_LDO ACT8810 TM PMUPMUActive REG1 Step-Down DC/DC REG2 Step-Down DC/DC REG3 Step-Down DC/DC REG4 LDO REG5 LDO ON2 nSTAT1 TH BTR Pb Pb-free

FEATURES

 Eight Functions Integrated Into One Package:  ActivePathTM Li+ Charger and System Power Selection  1.3A High Efficiency Step-Down DC/DC  1.0A High Efficiency Step-Down DC/DC  0.55A High Efficiency Step-Down DC/DC  360mA Low Noise, High PSRR LDOs  360mA Low Noise, High PSRR LDOs  30mA RTC LDO / Backup Battery Charger  I2CTM Serial Interface  Minimal External Components  Compatible with USB or AC-Adapter Charging  5mm × 5mm, Thin-QFN (TQFN55-40) Package  Only 0.75mm Height, RoHS Compliant

APPLICATIONS

 Personal Navigation Devices  Portable Media Players  Smart Phones GENERAL DESCRIPTION The patent-pending ACT8810 is a complete, cost effect tive, 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 six 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 linear Li+ charger that incorporates an internal power MOSFET. REG1, REG2, and REG3 are three independent, fixed-frequency, current -mode step -down DC/DC converters that output 1.3A, 1.0A, and 0.55A, respectively. REG4 and REG5 are high performance, low-noise, low-dropout linear regulators that output up to 360mA each. REG6 is a RTC LDO that outputs up to 30mA for a real time clock. Finally, an I2C serial interface provides programmability for the DC/DC converters and LDOs. Tiny 5mm × 5mm 40 -pin Thin-QFN package that is just 0.75mm thin.

Product Brief, 12-Mar-09 Innovative PowerTM - 2 - www.active-semi.com Copyright © 2009 Active-Semi, Inc. PRODUCT OPTIONS FUNCTIONAL BLOCK DIAGRAM : Output voltage options detailed in this table represent standard voltage options, and are available for samples or producti on orders. Contact Active-Semi for more information regarding semi-custom output voltage combinations. : Contact factory for additional available products or custom requirements. Block Function Output Voltage Capability ActivePath System Power Selection 4.6V Up to 2.4A CHGR Battery Charger 4.20V (4.10V to 4.30V available) Programmable up to 1A REG1 Step-Down DC/DC Adjustable, or 0.8V to 4.4V 1.3A REG2 Step-Down DC/DC 1.0A REG3 Step-Down DC/DC 0.55A REG4 LDO 360mA REG5 LDO 360mA REG6 RTC LDO 30mA 0.9V to 3.3V ON2 nPBIN nIRQ ON3 VSYS Reference ACT8810 ON1 REFBP Charge Control CHG_IN BAT CHGLEV CURRENT SENSE VOLTAGE SENSE VSYS nSTAT0 CHARGE STATUS Up to 12V AC Adaptor USB Li+ Battery BODY SWITCH SDA SCL System Control nRSTO OUT1 ActivePath Control VSEL ISET System SupplyVSYS BODY SWITCH 2.9V PRE- CONDITION 110°C THERMAL REGULATION REG4 LDO REG5 LDO OUT5 OUT4 To VSYS REG2 VP2 GP2 SW2 OUT2 OUT2 To VSYS REG1 VP1 GP1 SW1 OUT1 OUT1 To VSYS (Optional) VSYS DCCC ACIN REG6 RTC_LDO OUT6 BTR TH nSTAT1 CHARGE STATUS VSYS REG3 VP3 GP3 SW3 OUT3 OUT3 To VSYS PUSH BUTTON INL OUT5 OUT4 OUT6 OUT1 GA EP