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PDF DA9030 Data sheet ( Hoja de datos )
| Número de pieza | DA9030 | |
| Descripción | (DA903x) Advanced Power Management Controllers | |
| Fabricantes | Intel | |
| Logotipo |  |
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mwww.DataSheUDesAt4iU9n.0cgo3mDx iAaldovgaSnceemdicPoonwdeurctor*
oManagement Controllers with the
.cIntel® PXA27x Processor Family
t4UApplication Note — Revision 1.0
eMay 2004
www.DataShe www.DataSheet4U.comReference Number: 280091-001
1 page  
1.0
1.1
1.2
1.2.1
Using Dialog Semiconductor* DA903x Advanced Power Management
Controllers with the Intel® PXA27x Processor Family
Introduction
This document explains how to use the Dialog Semiconductor* DA903x Advanced Power
Management Controllers (DA903x PMIC) with the Intel® PXA27x Processor Family (PXA27x
processor)-based platform to design power supply, battery management, and sleep-mode functions.
The Dialog Semiconductor* DA903x Advanced Power Management Controllers consists of two
devices:
• DA9030 Power Management Integrated Circuit (PMIC)
• DA9031 Power Management Integrated Circuit
The new DA903x PMIC is a highly integrated chip that supports the Wireless Intel SpeedStep®
technology, enabling significant power savings by intelligently managing voltage and frequency
changes similar to the technology used in Intel notebook processors. As a result of its highly
integrated features, the DA903x PMIC reduces overall system cost and size significantly when
compared to an equivalent discrete solution. This document addresses only the power-supply
related features; addressing all of the features and functions of the optimized PMIC is beyond the
scope of this document. The DA9030 PMIC and DA9031 PMIC datasheets describe all the features
of the devices in detail.
Purpose of this Document
This document:
• Briefly introduces the DA9030 PMIC and its variants.
• Contains information about power domains, component selection, schematics of the PXA27x
processor and DA903x PMIC interconnection, and on the other hardware related issues.
• Concentrates on the different power modes of the PXA27x processor and the DA9030 PMIC
power-supply features.
• Briefly describes the charger concept and modes of operation.
• Contains concluding remarks.
DA9030 PMIC Variants
The Dialog Semiconductor DA9030 PMIC was developed in close cooperation with Intel to
achieve the most optimized PMIC for mobile handsets using an Intel communication processor
together with the PXA27x processor. All functions can be evaluated by using the Dialog
Semiconductor evaluation board together with the control software. The DA9031 is the first variant
to address PXA27x processor stand-alone applications. For systems using stacked memory or
larger amounts of external memory (greater than 256 Mb), the second buck converter can be
programmed to provide a 1.8V supply with currents up to 600mA. Customized versions of the
existing PMIC to adapt it to specific customer requirements are also available through Dialog
Semiconductor.
Main Features of DA9030 PMIC
The DA9030 PMIC is an highly integrated power management controller and includes the
following main features:
Application Note
1
5 Page 
3.1
3.2
3.2.1
3.2.2
Using Dialog Semiconductor* DA903x Advanced Power Management
Controllers with the Intel® PXA27x Processor Family
PXA27x Processor Power Modes
The PXA27x processor provides the following power modes: run, turbo, idle, standby, sleep, and
deep sleep.
• Run mode is the normal execution mode. The other power modes must be entered from run
mode. The other power modes return to run mode when being exited.
• Turbo mode is for use in peak processing and is a multiple of run-mode frequency. The core
voltage must allow for the turbo frequency, so a dynamic voltage change can be considered.
• Idle mode is the first level of reduced power consumption defined by the PXA27x processor.
The CPU clock is stopped in idle mode only. There are no consequences for the DA903x.
• Sleep mode significantly reduces the power consumption of the PXA27x processor since most
of the internal processor state is not clocked and, therefore, not preserved. Only the real-time
clock (RTC) and the power manager are clocked while a PXA27x processor is in sleep mode.
The DA903x PMIC pulls the core voltage down to VSS during sleep mode. (see sections 3.2
and 3.3).
• Deep sleep mode is where all power domains except the VCC_BATT can be powered down.
External low-voltage and high voltage power supplies can be disabled.
• Standby mode is similar to sleep except CPU state is preserved. All activity inside the
processor stops. RTC operational, OS timer are optionally operational.
The initial core frequency is low after boot up. The frequency-change sequence changes the
processor clock frequency for run mode and turbo mode (see the Intel® PXA27x Processor Family
Developer’s Manual for details).
DA903x Operating Modes Overview
Power-Down Mode
The power-down mode of the DA903x has the minimum current consumption. The only active
blocks are the internal power-on-reset block, the RTC LDO and its ultra low-power bandgap
reference, and the input-detection circuit for the charger VCHG_DETECT. All other blocks are
disabled to avoid draining the external battery when the equipment is switched off.
When the battery voltage is below the VPORLOWER (VRTC + 0.075V) threshold voltage, the
DA903x is held in a reset state. During this time, the current consumption is at an absolute
minimum with the only active circuits being the RTCLDO bandgap (used by the POR generator)
and the charger detection comparator. While the internal POR is asserted, the DA903x is held in the
power-down state and cannot be turned on until the POR has negated.
Power-On-Start-up Mode
The start-up mode is entered from the power-down mode initiated by the ONKEY_N, PWREN1,
EXTON or VCHG_DETECT signals. This mode sequentially starts up the internal references,
internal oscillator, voltage supervision, buck converter, followed by the LDO regulators—all under
the control of an internal state machine. When a fault is detected (battery under-voltage, battery
over-voltage or watchdog time out of the CProc response), the state machine terminates the start-up
mode and returns to the power-down mode; otherwise, the state machine completes the start-up
sequence, at which point the DA903x switches to the active mode.
Application Note
7
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet DA9030.PDF ] | |
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