Datasheet

LOWFREQUENCYOSCILLATOR
INTEGRATINGADC(COULOMBCOUNTER)CHARACTERISTICS
ADC(TEMPERATUREANDCELLMEASUREMENT)CHARACTERISTICS
DATAFLASHMEMORYCHARACTERISTICS
bq27510-G1
www.ti.com .....................................................................................................................................................................................................SLUS927–APRIL2009
T
A
=–40°Cto85°C,C
REG
=0.47µF,2.45V<V
REGIN
=V
BAT
<5.5V;typicalvaluesatT
A
=25°CandV
REGIN
=V
BAT
=3.6V
(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
f
OSC
Operatingfrequency32.768KHz
T
A
=0°Cto60°C–1.5%0.25%1.5%
f
EIO
Frequencyerror
(1)(2)
T
A
=–20°Cto70°C–2.5%0.25%2.5%
T
A
=–40°Cto85°C-4.0%0.25%4.0%
t
SXO
Start-uptime
(3)
500µs
(1)ThefrequencydriftisincludedandmeasuredfromthetrimmedfrequencyatV
CC
=2.5V,T
A
=25°C.
(2)Thefrequencyerrorismeasuredfrom32.768KHz.
(3)Thestartuptimeisdefinedasthetimeittakesfortheoscillatoroutputfrequencytobe±3%oftypicaloscillatorfrequency.
T
A
=–40°Cto85°C,C
REG
=0.47µF,2.45V<V
REGIN
=V
BAT
<5.5V;typicalvaluesatT
A
=25°CandV
REGIN
=V
BAT
=3.6V
(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
V
SR_IN
Inputvoltagerange,V
(SRN)
andV
(SRP)
V
SR
=V
(SRN)
–V
(SRP)
–0.1250.125V
t
SR_CONV
ConversiontimeSingleconversion1s
Resolution1415bits
V
SR_OS
Inputoffset140µV
I
NL
Integralnonlinearityerror±0.007±0.034FSR
Z
SR_IN
Effectiveinputresistance
(1)
2.5MΩ
I
SR_LKG
Inputleakagecurrent
(1)
0.3µA
(1)Assuredbydesign.Notproductiontested.
T
A
=–40°Cto85°C,C
REG
=0.47µF,2.45V<V
REGIN
=V
BAT
<5.5V;typicalvaluesatT
A
=25°CandV
REGIN
=V
BAT
=3.6V
(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
V
ADC_IN
Inputvoltagerange–0.21V
t
ADC_CONV
Conversiontime125ms
Resolution1415bits
V
ADC_OS
Inputoffset1mV
Z
ADC1
Effectiveinputresistance(TS)
(1)
8MΩ
Z
ADC2
Effectiveinputresistance(BAT)
(1)
bq27510notmeasuringcellvoltage8MΩ
bq27510measuringcellvoltage100kΩ
I
ADC_LKG
Inputleakagecurrent
(1)
0.3µA
(1)Assuredbydesign.Notproductiontested.
T
A
=–40°Cto85°C,C
REG
=0.47µF,2.45V<V
REGIN
=V
BAT
<5.5V;typicalvaluesatT
A
=25°CandV
REGIN
=V
BAT
=3.6V
(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
t
DR
Dataretention
(1)
10Years
Flashprogrammingwrite-cycles
(1)
20,000Cycles
t
WORDPROG)
Wordprogrammingtime
(1)
2ms
I
CCPROG)
Flash-writesupplycurrent
(1)
510mA
(1)Assuredbydesign.Notproductiontested.
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