BQ27532-G1 Datasheet, PDF (6/35 Pages) Texas Instruments – Battery Management Unit Impedance Track Fuel Gauge

bq27532-G1
SLUSBU6B – SEPTEMBER 2014 – REVISED JANUARY 2016
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6.10 ADC (Temperature and Cell Measurement) Characteristics
T_A = –40°C to 85°C, 2.4 V < V_CC < 2.6 V; typical values at T_A = 25°C and V_CC = 2.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
V_ADC1
V_ADC2
V_IN(ADC)
G_TEMP
Input voltage range (TS)
Input voltage range (BAT)
Input voltage range
Internal temperature sensor voltage
gain
V_SS – 0.125
2
V_SS – 0.125
5
0.05
1
–2
t_{ADC_CONV} Conversion time
Resolution
125
14
15
V_OS(ADC)
Z_ADC1 ⁽¹⁾
Input offset
Effective input resistance (TS)
Z_ADC2 ⁽¹⁾ Effective input resistance (BAT)
I_lkg(ADC) ⁽¹⁾ Input leakage current
Device not measuring cell voltage
Device measuring cell voltage
1
8
8
100
0.3
(1) Specified by design. Not tested in production.
UNIT
V
V
V
mV/°C
ms
bits
mV
MΩ
MΩ
kΩ
μA
6.11 Integrating ADC (Coulomb Counter) Characteristics
T_A = –40°C to 85°C, 2.4 V < V_CC < 2.6 V; typical values at T_A = 25°C and V_CC = 2.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
V_SR
t_{SR_CONV}
Input voltage range,
V_(SRP) and V_(SRN)
Conversion time
Resolution
V_SR = V_(SRP) – V_(SRN)
Single conversion
–0.125
14
0.125
1
15
V_OS(SR)
INL
Z_IN(SR) ⁽¹⁾
I_lkg(SR) ⁽¹⁾
Input offset
Integral nonlinearity error
Effective input resistance
Input leakage current
10
±0.007% ±0.034%
2.5
0.3
(1) Specified by design. Not tested in production.
UNIT
V
s
bits
μV
FSR
MΩ
μA
6.12 Data Flash Memory Characteristics
T_A = –40°C to 85°C, 2.4 V < V_CC < 2.6 V; typical values at T_A = 25°C and V_CC = 2.5 V (unless otherwise noted)
PARAMETER
MIN
TYP
MAX
t_DR ⁽¹⁾
Data retention
Flash-programming write cycles⁽¹⁾
10
20,000
t_WORDPROG ⁽¹⁾
I_CCPROG ⁽¹⁾
t_DFERASE ⁽¹⁾
t_IFERASE ⁽¹⁾
t_PGERASE ⁽¹⁾
Word programming time
Flash-write supply current
Data flash master erase time
Instruction flash master erase time
Flash page erase time
2
5
10
200
200
20
(1) Specified by design. Not production tested
UNIT
Years
Cycles
ms
mA
ms
ms
ms
6
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