PCF50604 [NXP]
PCF50604;
| 型号： | PCF50604 |
| 厂家： | 
NXP |
| 描述： | PCF50604 PC |
| 文件： | 总4页 (文件大小：965K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
The PCF50604 is a highly integrated, low- power
controller for power supply, battery management, and
SIM card interfacing for cellular terminals.
The programmability of the functions allows the use of
this Power Management Unit (PMU) in many different
mobile applications.
PCF50604 Power
Management Unit
2.5G/3G controller for power supply
and battery management
Power management is one of the most important areas on the road
to 3G, since it will play a crucial role in delivering new applications
with acceptable battery lifetimes. The PCF50604 is based on the
significant experience in the power management field that Philips
Semiconductors has acquired by providing solutions for various
mobile applications, offering the wireless market best-in-their-class
DC/DC converters and battery management ICs.
The PCF50604 is a highly integrated solution for power supply
generation, battery management including charging and a
Subscriber Identity Module (SIM) card interface including supply
generation. The device is controlled by a host controller via a
400kHz I2C serial interface.
Thanks to the unique level of integration and the low number of
small and inexpensive peripheral components, this power
management unit allows the design of cost optimized cellular
systems.
Compatibility
The PCF50604 interfaces directly with Philips Semiconductors’
current and future highly integrated solutions for GSM (2G and
2.5G), CDMA, and 3G, such as the GSM baseband OneC
single-chip family, the CDMA baseband CDMA+25x single-chip
family, or OPUS, the baseband solution for UMTS. Thanks to the
programmability of the regulators, and the possibility of
mask-programmable reset voltages, the PCF50604 interfaces also
with chipsets for other applications such as cordless systems, and
with chipsets from other vendors.
Key Features
•
•
On/off control
13 power supplies with mask-programmable reset
voltages:
- high voltage supply (charge pump with regulator)
- 3 low-noise supplies for RF
- 6 programmable digital/analog supplies
- programmable high current supply
- microphone bias supply
- SIM supply for 1.8V and 3V cards
Programmable battery voltage monitor
Programmable charge control for LiIon and NMH
batteries
Backup battery control incl. charging
32 kHz oscillator and real-time clock with alarm
SIM interface (in transparent mode or with sequencer)
Error reporting via interrupt mechanism and status
registers
Availability
•
•
Samples of the PCF50604 are available in 56-pin lead-less
HVQFN packaging (8x8mm). Mass production is expected in Q3
2001.
A complete evaluation kit is available, consisting of an evaluation
board, control software, and documentation.
•
•
•
•
•
2 programmable pulse-width modulators with
integrated switch
•
•
2 LED controls with programmable pattern
Guarantees lowest system costs:
- very high integration
- few and inexpensive peripheral components
I2C serial interface
HVQFN56 package (8 x 8 mm body)
•
•
PCF50604 Power Management Unit
Key Blocks
Communication and Control
Supply Voltage Generation
The PCF50604 controls the power ramp-up and ramp-down
sequences for the handset. Furthermore, it controls several
system operating modes like ACTIVE, STANDBY, or
NOPOWER to realize minimum power consumption. The
power control and battery management functions are
supported by the following modules:
The PCF50604 provides 13 power supplies with different
characteristics in terms of noise performance, current consump-
tion, and power supply rejection. The supplies have configu-
rable activity modes (OFF, ECO, ON) that can be selected by
the two external pins. The ECO mode is a low power
operation mode, where the output power is limited to 2mA,
and the internal power consumption is reduced significantly.
Serial 400 kHz I2C interface.
•
•
•
•
•
One mask programmable high-voltage supply consisting of
a step-up converter combined with a 25mA low drop-out
(LDO) voltage regulator.
Internal current controlled oscillator.
Optional external 32.768 kHz oscillator.
Interrupt controller that generates interrupt requests for
the host controller. All interrupt sources can be masked.
Real Time Clock with alarm.
•
Three 100mA LDO voltage regulators with mask
programmable output voltages for RF supplies. Regulators
are optimized for low noise, high power supply rejection,
and excellent load regulation.
•
•
Two pins for accessory recognition with programmable
debounce filters.
•
Five 150mA LDO voltage regulators with programmable
output voltages. Regulators require 330nF external
capacitor only. Support the ECO mode (low power
operation mode).
•
Subscriber Identity Module (SIM) card interface that
supports two different modes:
-
Transparent interface including an arbiter and signal
level translators.
•
•
One 100mA LDO voltage regulator with programmable
output voltage. In its ECO mode, it can be used to
permanently supply parts in the system in all system states.
One 250mA LDO voltage regulator with programmable
output voltage. This high current regulator is optimized
for applications like hands-free audio.
-
SIM card interface with integrated sequencer, arbiter
and signal level translators. The sequencer controls
card activation and de-activation, warm reset, and
controlled clock stop for power down modes.
•
Temperature high sensor for thermal protection for the
whole chip.
PCF50604 Power Management Unit Block Diagram
I2C
1.8
/
3 V SIM
3 RF
INTERFACE
INTERFACE
LIN REGS
INTERRUPT
GENERATOR
32 kHz OSC
RTC
6 DIG
LIN REGS
Communication & Control
Battery Management
Power Supply
ACTIVITY
CONTROL
2 LED
CONTROLS
HIGH VOLTAGE
SUPPLY
Audio and Specials
BAT. VOLT.
SUPERVISOR
HIGH CURRENT
SUPPLY
2 PWMs
BACKUP
BAT. SUPPORT
CHARGE
CONTROL
MICROPHONE
BIAS SUPPLY
MSD683
•
•
Microphone bias voltage generator with low noise, and
high power supply rejection.
Dedicated SIM supply that supports 3 V and 1.8 V cards.
Power saving ECO mode for the power down mode of the
SIM card.
Battery management
The PCF50604 operates from a 3 cell NiCd/NiMH or a 1 cell
LiIon battery pack. In case the main battery is removed, the
core functions of the PMU are kept active when either a
backup battery or a charger are connected to the IC. The
following battery management functions are implemented:
•
Battery voltage monitor to detect a too low main battery
voltage with programmable threshold levels.
•
Main battery charger to control the charging process of
NMH or LiIon batteries based on the pulse charging
method. The battery voltage and battery temperature are
continuously monitored.
Power Management Unit Control Software Window
-
Slow-charge mode in case of empty main battery, with
timer.
Looking towards the future
-
Automatic fast charge mode with programmable
maximal charge current, voltage limit, and timer.
Trickle charge and top-off charge mode.
Automatic stop of charging process in case of too low
or high temperature, too low or too high voltage at
charger input, fast temperature increase, expiration of
timer, or when battery voltage limit is reached.
Philips Semiconductors' cellular strategy is delivering complete
mobile multimedia technology based on a proven total system
approach. By including the application domain as a key selling
factor for 3G terminals, Philips Semiconductors was involved
at an early stage in supporting advanced multimedia
applications with optimized IC solutions inside the product
offering. This opens up new possibilities for Internet and
personal multimedia services available from GSM via
GPRS/EDGE to the 3G world.
-
-
•
Programmable backup battery charger for Goldcap or
LiIon batteries.
General features
Forthcoming PMU products will support the extension of the
PCF50604 PMU with power management sub-systems for
multimedia or PDA applications. Integrated, programmable
DC/DC converters will ease the design of complex mobile
systems that are highly efficient in reducing the power
consumption.
•
•
Two flexible pulse-width modulators with integrated
switches.
Two LED drivers with integrated switches. Capable of
generating 8 different blinking patterns with 4 different
repetition periods.
•
Enhanced ESD protection on all pins that connect to the
SIM card, the battery, or the charger.
Optimized system cost
The PCF50604 is designed to realize a very low system cost:
•
Few, small, and inexpensive external components
(example: standard regulators require 330nF, RF supplies
and microphone bias supply require 4.7µF).
Low PCB cost thanks to small, easy-to-layout HVQFN
package, high integration, and low component count.
Small batteries thanks to low power consumption of
PCF50604. In sleep mode, the current consumption of the
PMU can be reduced to 100uA, while maintaining the
supply for the baseband core, the memories and the SIM
card.
•
•
PCF50604 Power Management Unit
Philips Electronics N.V. 2001
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.The information presented in this
document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by
the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent - or other industrial or intellectual property rights.
Date of release: July 2001 - printed in the Netherlands
Document Order Number 9397 750 08359
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