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| BQ27505-J4 Datasheet, PDF (6/38 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge | |||
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bq27505-J4
SLVSA40 â DECEMBER 2009
www.ti.com
3.8 ADC (TEMPERATURE AND CELL MEASUREMENT) CHARACTERISTICS
TA = â40°C to 85°C, 2.4 V < VCC < 2.6 V; typical values at TA = 25°C and VCC = 2.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX
VIN(ADC)
tADC_CONV
Input voltage range
Conversion time
Resolution
â0.2
1
125
14
15
VOS(ADC)
ZADC1
ZADC2
Ilkg(ADC)
Input offset
Effective input resistance (TS)(1)
Effective input resistance (BAT)(1)
Input leakage current(1)
bq27505-J4 not measuring cell
voltage
bq27505-J4 measuring cell voltage
1
8
8
100
0.3
(1) Specified by design. Not tested in production.
UNIT
V
ms
bits
mV
Mâ¦
Mâ¦
kâ¦
μA
3.9 DATA FLASH MEMORY CHARACTERISTICS
TA = â40°C to 85°C, 2.4 V < VCC < 2.6 V; typical values at TA = 25°C and VCC = 2.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX
tDR
Data retention(1)
Flash-programming write cycles(1)
10
20,000
tWORDPROG
ICCPROG
Word programming time(1)
Flash-write supply current(1)
2
5
10
(1) Specified by design. Not production tested
UNIT
Years
Cycles
ms
mA
6
ELECTRICAL SPECIFICATIONS
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