Eight Channel ActivePathPower Management FEATURES Eight Functions
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Product Brief, 12-Mar-09 Advanced InformationAll Information Subject Change
Eight Channel ActivePathPower Management FEATURES
Eight Functions Integrated Into Package:
ActivePath Charger 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 Noise, High PSRR LDOs 360mA Noise, High PSRR LDOs 30mA Backup Battery Charger I2CSerial Interface Minimal External Components
GENERAL DESCRIPTION
patent-pending ACT8810 complete, cost effect tive, highly-efficient ActivePMUpower management solution that ideal wide range high performance portable handheld applications such personal navigation devices (PNDs). This device integrates ActivePathcomplete battery charging management system with power supply channels. ActivePath architecture automatically selects best available input supply system. external input source present system load current more than input source provide, ActivePath supplies additional current from battery system. charger complete, thermallyregulated, stand-alone single-cell linear charger that incorporates internal power MOSFET. REG1, REG2, REG3 three independent, fixed-frequency, current-mode step-down DC/DC converters that output 1.3A, 1.0A, 0.55A, respectively. REG4 REG5 high performance, low-noise, low-dropout linear regulators that output 360mA each. REG6 that outputs 30mA real time clock. Finally, serial interface provides programmability DC/DC converters LDOs. Tiny 40-pin Thin-QFN package that just 0.75mm thin.
Compatible with AC-Adapter Charging 5mm, Thin-QFN (TQFN55-40) Package
Only 0.75mm Height, RoHS Compliant
APPLICATIONS
Personal Navigation Devices Portable Media Players Smart Phones
SYSTEM BLOCK DIAGRAM
CHG_IN CHGLEV DCCC ISET ACIN nSTAT0 nSTAT1 nPBIN nIRQ nRSTO VSEL Battery Programmable VSYS REG1 Step-Down DC/DC REG2 Step-Down DC/DC REG3 Step-Down DC/DC System Control REG4 REG5 OUT1 Adjustable, 0.8V 4.4V 1.3A OUT2 Adjustable, 0.8V 4.4V 1.0A OUT3 Adjustable, 0.8V 4.4V 0.55A OUT4 0.9V 3.3V 360mA OUT5 0.9V 3.3V 360mA OUT6 0.9V 3.3V 30mA
ActivePath& Single-Cell Battery Charger
Pb-free
ACT8810
Active
REG6 RTC_LDO
Innovative PowerActivePMUand ActivePathare trademarks Active-Semi. I2Cis trademark Philips Electronics.
www.active-semi.com Copyright 2009 Active-Semi, Inc.
Product Brief, 12-Mar-09
ACT8810
PRODUCT OPTIONS
Block
ActivePath CHGR REG1 REG2 REG3 REG4 REG5 REG6
Function
System Power Selection Battery Charger Step-Down DC/DC Step-Down DC/DC Step-Down DC/DC
Output Voltage
4.6V 4.20V (4.10V 4.30V available) Adjustable, 0.8V 4.4V
Capability
2.4A Programmable 1.3A 1.0A 0.55A 360mA
0.9V 3.3V
360mA 30mA
Output voltage options detailed this table represent standard voltage options, available samples production orders. Contact Active-Semi more information regarding semi-custom output voltage combinations. Contact factory additional available products custom requirements.
FUNCTIONAL BLOCK DIAGRAM
(Optional) Adaptor
BODY SWITCH
CHG_IN DCCC
BODY SWITCH
ACT8810
VSYS System Supply
ACIN VSYS nSTAT0 VSYS nSTAT1
CHARGE STATUS CHARGE STATUS
Battery
ActivePath Control
CURRENT SENSE VOLTAGE SENSE PRECONDITION THERMAL REGULATION
2.9V 110°C REG1 OUT1 OUT1 VSYS
ISET VSYS CHGLEV OUT1 nRSTO
Charge Control
VSYS
VSYS REG2 nPBIN PUSH BUTTON OUT1 nIRQ
OUT2 OUT2
VSYS
REG3 VSEL REFBP Reference REG4 REG5 REG6 RTC_LDO OUT3 OUT3 OUT4 OUT4 OUT5 OUT5 OUT6 OUT6
System Control
VSYS
Innovative Power
www.active-semi.com Copyright 2009 Active-Semi, Inc.
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