bcm59035 Broadcom Corp., bcm59035 Datasheet - Page 2

• Manufacturer Part Number: bcm59035
• Description: Bcm59035 - Mobile Power Management Unit
• Manufacturer: Broadcom Corp.

The BCM59035 Power Management Unit (PMU) is a highly integrated
complete power management and battery management solution
optimized for EDGE, WEDGE, and HSDPA chip sets. The BCM59035
contains a fully featured, host-independent wall and USB linear charger
for Li-ion/Li-polymer batteries, USB OTG VBUS regulator and
comparators, two high-efficiency synchronous buck regulators, fifteen
high-performance LDOs, a backup battery charger, a Real-Time Clock,
two programmable current sources (PWMLEDs) to power up LEDs, two
GPIO ports, and a fuel gauge. The BCM59035 can be controlled via a
100-/400-kHz I²C-compatible (BSC) interface. An external host
controller can access BCM59035 BSC registers to read or program the
internal blocks.
The two switching regulators (switchers) provide power to the core and
I/O circuit blocks of the Baseband IC. The regulators’ operating modes
and output voltages are configurable via BSC to adapt to the phone’s
various operating states, enabling optimum efficiency over the entire
load range with up to 93% during normal load. The core switcher
supports open loop dynamic voltage scaling (DVS) through BSC, which
further improves the system’s efficiency. The switching regulators’
operating frequency is 2 MHz, allowing the use of small-size, low-
profile external components.
The BCM59035 consists of a third integrated switching regulator which
boosts the battery voltage to generate the 5V/200 mA VBUS for USB
On-The-Go (OTG), as well as the detection comparators required by the
USB OTG 1.3 standard.
Broadcom
the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries
and/or the EU. Any other trademarks or trade names mentioned are the property of their respective
owners.
BROADCOM CORPORATION
5300 California Avenue
Irvine, California 92617
© 2007 by BROADCOM CORPORATION. All rights reserved.
59035-PB00-R
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, the pulse logo, Connecting everything
12/19/07
®
USB
®
, and the Connecting everything logo are among
Backup Battery
Wall
+
BCM59035 Block Diagram
Backup Battery
I/O Switching
Wall Charger
Fuel Gauge
Boost/USB
32-kHz
PWM LEDs
Regulator
USB OTG
XTAL
OSC
NTC
Charger
Charger
O V E R V I E W
Core Switching
BCM59035
Regulator
Comparators
Digital Controller
Reference
Overtemp
Fifteen LDOs are optimized for their specific functions to power all
analog, RF, host controller, and peripheral circuitries. RF and Analog
LDOs typically achieve excellent power supply rejection and low noise
performance. Power-up sequencing of the LDOs is programmable via
OTP bits.
The battery management section includes a linear battery charger with
Wall/USB charging functions, automatic charger source switchover,
battery presence detection, battery temperature monitoring, and die
temperature regulation loop. In addition, the battery management section
supports a coulomb counter-based fuel gauge and a backup battery
charger. Precise charging accuracy and temperature monitoring loop
ensure maximum battery life and safety. The main battery charger
supports precharge, constant current, and constant voltage charging
modes for maximum reliability. The backup battery charger also
supports Constant Current (CC) and Constant Voltage (CV) charging
modes.
An RTC module provides 32.768-kHz output, time reference, and alarm
functions with wake-up control. Two programmable current sources
generate output patterns with programmable duty cycle and frequency.
Two general-purpose I/O (GPIO) ports can be programmed or read by
the host controller through the BSC interface and can be used to interface
with external circuits.
Note: The Broadcom Serial Control (BSC) bus is Philips
compatible.
Power on
Bandgap
Reset
AUXLDO1
AUXLDO2
RFLDO2
MSLDO1
MSLDO2
HCLDO1
HCLDO2
LVLDO1
LVLDO2
RFLDO1
SIMLDO
ALDO1
ALDO2
LCLDO
IOLDO
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com
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