Product Brief, 28-Aug-07
Advanced Information - All Information Subject to Change
ACT5810
Nine Channel PMU for Mobile Phones
FEATURES
•
Multiple Patents Pending
•
Li+ Battery Charger with Integrated MOSFET
−
ON/OFF Control
•
Charger Current Monitor Output
•
Six Low Noise LDOs
−
3.00V at 250mA
−
1.80V at 150mA
−
3.00V at 80mA
−
3.00V at 80mA
−
3.00V at 80mA
−
3.00V at 150mA
−
Programmable LDO Output Voltages
•
Two N-channel Open Drain Switches
•
I
2
C
TM
Compatible Serial Interface
−
Configurable Operating Modes
•
AC OK (nACOK) and RESET (nRST) Outputs
•
5×5mm, QFN (QFN55-32) Package
−
RoHS Compliant
GENERAL DESCRIPTION
The patent-pending ACT5810 is a complete, inte-
grated power management solution that is ideal for
CDMA and GSM mobile phones. This device inte-
grates a linear Li+ battery charger with an internal
power MOSFET, six low dropout linear regulators
(LDOs), a reset output, and two N-Channel open
drain switches. An I
2
C Serial Interface is utilized to
provide programmable LDO and battery charger
functionality.
The ACT5810 features six low-noise LDOs and are
divided into two sets of three: one set optimized for
minimum quiescent supply current, and the other
optimized for high PSRR, achieving more than
60dB PSRR at frequencies up to 10kHz. All LDO
output voltages may be programmed as well as en-
abled and disabled via the I
2
C interface.
The charger is a complete, thermally-regulated,
stand-alone single-cell linear mode charger for Li+
batteries. It incorporates an internal power MOS-
FET for constant-current/constant-voltage control.
The battery regulation voltage has 0.5% accuracy,
and features programmable charger currents in the
90mA to 1A range as well as a variety of other func-
tions including a complete charge-management
state machine and charge safety timers.
APPLICATIONS
•
GSM or CDMA Mobile Phones
SYSTEM BLOCK DIAGRAM
Innovative Products.
Active Solutions.
ActivePMU
is a trademark of Active-Semi.
I
2
C
TM
is a trademark of Philips Electronics.
TM
-1-
www.active-semi.com
Copyright © 2007 Active-Semi, Inc.
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
