DA6021 datasheet(140/225 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

140 of 224

www.dialog-semiconductor.com

gain = 0.8

ADC_IN1÷3 Voltage

Range

/ channels A1, A2, A3 /

ADC=[VIN / 2.5] x

1023

gain = 1.0

2.5

Internal Temp. Sensor

Voltage

/ channel A4 /

ADC=[1

– 1.2 x VTJ]

x 1023

gain = 3.0

0.833

VBBAT Voltage Range

/ channel A5 /

ADC=[1 - 0.2 x

VBBAT] x 1023

gain = 0.5

Inter Channel Isolation

80dB for channel A3

(ADC_IN6)

Regulator OV/UV

monitoring Channel A8

÷ A10

Gain =0.5

5.5

Table 99: ADC Electrical Charakteristics

Analog Overview

15.2

The AD conversion is of successive approximation type using sample and hold. It has a resolution of 10 bits and

a conversion cycle of 21 clock cycles including an auto-zero phase (23 cycles consumed back-to-back). The

GPADC is supplied from the same supply, VDDCORE, as the digital block. If unused, the GPADC can be

disabled to reduce its power consumption by a factor around 100.

The GPADC has an analog input multiplexer with in total 16 input channels.

Description

Signal

name

Measur

ement

range

Cond.

Comment

ADC

value

Gain

Battery Voltage,

VBAT

(Pin:

IBATSENSE)

VREG

0.0V..

5.0V

YES

0.5*

Vin/VLP*1

023

0.5

Battery ID

(Pin: BATID)

ADCIN1

0.0V ..

VLP

VREFB needs to be

switched on 1ms prior to

ADC measurement.

VREFB needs to stay on

when battery removal has

to be detected by the

VBATID Comparator.

Vin/VREF

B*1023

DA6021 Die

Temperature

(no pin)

vbe_ADC/

adc_temp

0.0V ..

VLP/3

YES

Vin/VLP

*1023

Battery Pack

Temp 0

(Pin:

BPTHERM0)

ADCIN2

0.0V ..

VLP

VREFT needs to be

switched on 1ms prior to

ADC measurement.

Vin/VREF

*1023

Battery Pack

Temp 1

(Pin:

BPTHERM1)

ADCIN3

0.0V ..

VLP

Vin/VREF

T*1023

System Temp 0

(Pin:

SYSTHERM0)

ADCIN4

0.0V ..

VLP

Vin/VREF

T*1023

System Temp 1

(Pin:

ADCIN5

0.0V ..

VLP

Vin/VREF

T*1023

DA6021 Datasheet(PDF) 140 Page - Renesas Technology Corp

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