PCF50605HN/03B/N1 [NXP]
PCF50605HN/03B/N1;
| 型号： | PCF50605HN/03B/N1 |
| 厂家： | 
NXP |
| 描述： | PCF50605HN/03B/N1 PC |
| 文件： | 总6页 (文件大小：256K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Single-chip Power
Management Unit +
PCF50606/605
Each Philips PMU+ is a com plete, highly integrated
power m anagem ent unit designed for PDAs, sm art-
phones, webpads and other handheld products. The
PMU+ incorporates on-chip battery m anagem ent, a
touchscreen interface and m ore.
Se m i c o n d u c t o r s
The latest additions to a growing family of highly integrated
mixed-signal companion chips, the Philips PCF50606 and
PCF50605 power management unit ‘plus’ (PMU+) ICs dramati-
cally reduce board space and significantly lower overall cost in
handheld devices such as PDAs, smartphones, and webpads.
Each PMU+ also supports real-time, software-controlled power
management, a feature that can reduce overall system power
consumption by up to 70%. The full-featured PCF50606 PMU+
combines an efficient set of programmable power supplies, a
flexible battery management system, a 10-bit analog-to-digital
converter (ADC) and a touchscreen interface.The PCF50605
PMU+ offers the same power management features without an
on-chip touchscreen interface, ADC, or battery management.
Features
Each PMU+ is fully compatible with the Intel XScale architec-
ture and other processors designed for mobile use. It operates
from a three-cell NiCd/NiMH or a one-cell Li-Ion/Li-Polymer
battery pack and is available in a space-saving, 56-pin leadless
HVQFN package measuring only 8 x 8 x 1 mm.
> Complete system power management on a single chip
> Integrates functions to reduce board space by up to 50%
> Fully compatible with Intel® XScaleTM and other processors
> Software-programmable power supplies for design flexibility:
up to three integrated DC/DC converters and five LDO voltage
regulators with parallel, low-current LDOs
Real-time Power Management
> Software-controlled real-time power management can dramatically
reduce power consumption and extend battery life
As battery-powered systems take on more functionality and
incorporate more advanced processors and DSPs, power man-
agement becomes increasingly complex. To address this issue,
each PMU+ supports real-time power management, a feature
that allows various settings to be adjusted dynamically. Full soft-
ware control is provided through an I2C interface, so power
management can be programmed for different options and can
adapt to different operating conditions.
> Battery management system with battery voltage monitor, backup
battery support, charger control with multiple charge modes, and
10-bit ADC
> 10-bit touchscreen interface
> Optional 32-kHz Xtal oscillator output for generating real-time clock
> Up to six programmable GPOs
> Space-saving, 56-pin leadless HVQFN package (8 x 8 x1 mm)
> Complete evaluation kit with PC control software
Real-tim e Power Managem ent
The PMU+ supports real-time power management, a
feature that extends battery life by letting the system
adapt to different operating conditions. By fine-tuning
the supply voltages, designers can create highly opti-
mized, power-efficient systems. PMU+s support up to
eight different software-controllable supply-voltage
domains, such as memory, backlight, or I/O supply, etc.
For designs using next-generation processors, each PMU+ sup-
ports dynamic voltage management enabling the CPU's power
consumption to be scaled to reflect changes in performance
requirements. A PMU+ can also scale voltages in other parts of
the system. For example, the power supplies can be switched
off when a voltage domain is not operational. Or, when data
needs to be retained, the supply voltage to memory can be
temporarily lowered to reduce power consumption.The DC/DC
converters automatically switch to a more power-efficient mode
at low-load currents and offer an ECO mode for added power
savings.The low-dropout (LDO) voltage regulators also support
an ECO mode, reducing their internal power consumption in
low-current conditions such as sleep mode.
Mask-Programmable Options
All the default start-up settings, including the power supply start-
up values, are mask-programmable on the PMU+s. Through
hardwired control, designers can select programmed voltages
and define changes in operation for groups of power supplies.
This saves considerable design time and frees up resources for
creating more advanced functionality.
A PCF50606 PMU+ pro-
vides power management
for an entire system
including the display, the
applications processor,
the memory and the
peripherals.
PMU+ Functional Overview
Communication and Control
reset voltage, and programmable operation modes (on, off, and
ECO mode for additional power savings). All DC/DC convert-
ers offer a feature that automatically switches the converter to
a more power-efficient operating mode at low-load currents.
A PMU+ controls the power ramp-up and power ramp-down
for a PDA, smartphone, webpad, or other handheld device. It
also controls several system operating modes, including active,
save, standby, no power, and sleep. On-chip modules support
the power control and battery management functions.
The first DC/DC converter (DCD), a fully integrated, 500-mA
step-down converter, is typically used to generate the host con-
troller core supply voltage. In configurations that use sub-2V
regulators, it can also be used as a pre-regulator for the LDOs
to improve system power efficiency. The second DC/DC con-
verter (DCUD) is a fully integrated up/down converter. In step-
up mode, with currents up to 500 mA, it is typically used as the
audio amplifier and display supply. In step-down mode, with cur-
rents up to 500 mA, DCUD can be used to generate low supply
voltage. Or, to improve power efficiency, it can be used as a pre-
regulation stage for the linear regulators.
> A serial 400-kHz I2C link delivers control data and status to and
from the host controller.
> An optional 32-kHz oscillator output generates the real-time clock
and provides time reference and alarm functions with wake-up
control.
> An internal, current-controlled oscillator generates the internal sys-
tem clock.
> An interrupt controller generates the interrupt request for the host
controller. All interrupt sources can be masked.
Available on PCF50606/605 ‘B’ versions, the third DC/DC con-
verter (DCDE) is a step-down converter with built-in drivers
for external power FETs. It is typically used to generate high-
current (two or more amps) supply voltage for memory systems,
wireless communications, or accessories.
> An eight-second watchdog timer can be reset via the I2C interface
and can be used to shut down the PMU+.
> A temperature-high sensor provides thermal protection for the
entire IC.
Programmable Power Supplies
Programmable LDO Regulators
Each PMU+ integrates five LDO voltage regulators with pro-
grammable output (0.90 to 3.30 V in steps of 100 mV) and
mask-programmable reset voltages. All LDOs are optimized for
low noise, high power supply rejection and excellent load regula-
tion.The ECO mode, which uses a parallel, low-current LDO,
limits output to five mA and significantly reduces the internal
power consumption.The LDOs require only 470 nF from exter-
nal capacitors, keeping overall board space to a minimum.
Each PMU+ offers two types of programmable power supplies:
DC/DC converters and LDO voltage regulators. All start-up
values are mask-programmable, and all can be configured using
software control.
DC/DC Converters
A PMU+ integrates up to three high-efficiency DC/DC convert-
ers with programmable output voltage, mask-programmable
Program m able DC/DC Converters
NOMINAL CURRENT
500 mA
MIN.VOLTAGE
0.90 V
MAX.VOLTAGE
3.30 V
VOLTAGE STEPS
PFM/PWM
yes
CONFIGURATION
down
DCD
25 mV / 300 mV
DCUD
DCDE
500 mA (up or down)
0.90 V
0.90 V
5.50 V
3.30 V
300 mV / 100 mV
300 mV
yes
yes
up or down
down
determined by external
components
V
= REFGND = *GND = 0 V; T = -40 to +85 °C; unless otherwise specified.
amb
SS
Philips Sem iconductors
Leadership in Power
Managem ent
Battery Management
The PCF50606 PMU+ operates from a three-cell NiCd/NiMH or
a one-cell Li-Ion/Li-Polymer battery pack. Enhanced six-kV ESD
protection is provided on all pins connected to the main battery
pack. Integrated functions, including a battery voltage supervisor,
a charger control, and backup battery support, ensure efficient
battery use and extend battery life.
Backed by world-renown research,
Philips power management ICs are used
by some of the most widely recognized
names in portable electronics and
cellular handsets. Mobile phones using
Philips PMUs have achieved standby
time of 550 hours, establishing the
industry standard.
Battery Chargers and On-board Voltage Monitor
The PCF50606 PMU+ provides two battery chargers: a main
charger and a backup charger.The main charger offers extensive
safety features including a detector for over-voltage, battery-
voltage and temperature monitors, and a dedicated watchdog/
charge-timer circuit.Through a built-in switch, the battery
charger also supports use of a controller charger plug. For sys-
tems using Li-Ion/Li-Polymer batteries, the main battery charger
uses a constant-current/constant-voltage method.The fast-charge
current can be adjusted externally, maximum battery voltage is
programmable, and charging can take place with or without
interaction from the host controller. To increase the efficiency
of each charge, a programmable, constant-voltage mode is avail-
able.The on-chip battery voltage monitor uses programmable
threshold levels to detect when main battery voltage is too low.
Philips Semiconductors offers best-in-
class DC/DC converter technology
with seamless PFM/PWM mode switch-
ing. And after being first with the
world's smallest DC/DC converter (the
TEA1207UK measuring only 2 x 2 mm),
Philips recently introduced the ground-
breaking TEA1211, a DC/DC converter
offering both up and down conversion,
plus I2C-programmable output voltage.
ECO mode circuity in the LDOs saves energy in low-power states.
10-bit ADC
General-Purpose Outputs (GPOs)
The PCF50606 integrates a 10-bit ADC with analog input multi-
plexer.The ADC supports direct connection of some voltages
without the use of external voltage dividers or loss of resolution.
An accessory detection comparator connected to the ADC can
issue an interrupt when an accessory is connected. The ADC
can be synchronized in one of two ways: by sampling the host
controller operation mode, or, if connected to cellular function-
ality, by sampling the phone transmit frames.
PMU+s offer up to six GPOs, programmable through the serial
interface as continuous low or high. Four are CMOS outputs
supplied from the IOVDD supply.The others are open-drain
NMOST outputs capable of handling the full battery voltage
range and high-sink currents.A pulse-width modulator (PWM)
generates an output voltage with programmable duty cycle and
frequency. An integrated LED modulator can generate eight dif-
ferent blinking patterns with four different repetition periods,
even when the system is in sleep mode.The GPO outputs can
be controlled by the LED or the PWMs.
Touchscreen Interface
The PCF56060 touchscreen interface provides read-out of a
resistive, four-wire touchscreen, generating an interrupt when
the touchscreen is pressed. It biases the touchscreen during X
and Ycoordinate measurements and multiplexes the touchscreen
terminal to the ADC input. To minimize software overhead,
only one I2C command is required to measure the combined X
and Y position or to take P1 and P2 plate resistor measurements.
Evaluation Kit and PC Software
The PCF50606/605 evaluation kit includes an evaluation board
and software to manipulate a PMU+ from a standard PC. For
example, designers can use the software to modify programma-
ble settings, such as the output voltage on a DC/DC converter.
Control software,
included in the
evaluation kit,
makes it simple
for hardware
designers to
modify program-
mable settings in
any PCF5060x
PMU+.
PCF56060
Single-chip Power Management Unit +
Se m i c o n d u c t o r s
606HN/0xA/N1
606HN/0xB/N1
605HN/0xA/N1
605HN/0xB/N1
PCF5060x PMU+ DC/DC converters
Product Variations LDO voltage regulators
GPO s
2
5
6
*
*
*
*
*
3
5
3
*
*
*
2
5
6
3
5
3
Touchscreen interface
10-bit ADC
Battery charger
32.786-kHz clock out
400-kHz I2C serial interface
*
*
*
*
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© Philips Electronics N.V. 2002
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Date of release: May 2002 - Electronic Only
document order no.: 939775009763
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