DA6021 datasheet(16/225 Pages) RENESAS

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DA6021

HIGHLY INTEGRATED POWER MANAGEMENT IC FOR

INTEL® ATOM™ Z3000 PROCESSOR

Company Confidential

Data Sheet

Version 3.A - Final

31-Jan-14

16 of 224

www.dialog-semiconductor.com

4. Overview

DA6021 features:



Power sequencer & System control: DA6021 includes an ultra-flexible power sequencer

programmable via OTP during manufacturing process and modifiable via external EEPROM data. It

controls the DA6021 blocks, the power sequences, the programmed ADC sequence, interacts with

the SoC and the peripherals



Supply Sources



6 Buck Regulators



2 Buck-Boost Regulators



1 Boost Regulator



6 LDO Regulators



11 internal power rail switches



9 external power rail switches



2 Power mux switches where the supply source can be selected



Communication Interfaces



I2C (slave device) mastered from the SoC



Handshake/control signals from/towards the SoC and peripherals



SVID (slave device) mastered from the SoC, but capable of interrupt from the PMIC



I2C (master device) or EEPROM Interface, used to read EEPROM during first power up.



Input Source Power Detection: DA6021 will detect connected power sources and provide such

information towards the SoC and/or charger. VBAT, VBUS_SENSE, VDCIN_SENSE and VSYS

nodes will be permanently monitored via comparators for insertion, removal events. Furthermore

they will be measured via the GPADC in order to take decision on the boot process.



System Voltage and Temperature Measurement: it monitors the DA6021 input voltage at VSYS,

the on-die temperature as well as the battery and platform sensor temperatures. It detects over- and

under-voltage conditions. If activated, it can issue critical events.



GPADC: The GPADC is primarily for temperature and voltage measurements. It can run predefined

sequences or a single programmable one. It supports automatic and manual measurement

methods and can also run also in a standby mode at programmable long intervals.



Digital Battery Interface: 1-wire protocol agnostic digital communication between battery and SoC.

It introduces a level shifting between the SoC and the main battery



OTP & EEPROM Interface: DA6021 will read its parameters from integrated OTP during power on

reset. Optionally those OTP parameter settings can be overwritten by an external EEPROM for

back-up solution, debugging or development. Note, The

OTP can’t be overwritten and the EEPROM

can’t be programmed via the DA6021



Platform Back-up Battery Charger: DA6021 includes an autonomous charger for platform backup

batteries such as coin cells or “supercaps”.



Display control:



BCU: Battery controller unit, supervising peripherals based on system voltage



PWM: to accommodate some external functionality, DA6021 can generate up to 3 PWM signals

with programmable duty-cycle and frequency.



GPIOs: 16 general purpose I/O with alternate functions.

DA6021 Datasheet(PDF) 16 Page - Renesas Technology Corp

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