Texas Instruments BQ27530EVM System-Side Impedance-Track Fuel (Gas) Gauge Direct Battery Connection Evaluation Module BQ BQ27530EVM 데이터 시트
제품 코드
BQ27530EVM
SLUSAL5 – DECEMBER 2012
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
UNIT
V
ADC1
Input voltage range (TS)
V
SS
–
2
V
0.125
V
ADC2
Input voltage range (BAT)
V
SS
–
5
V
0.125
V
IN(ADC)
Input voltage range
0.05
1
V
G
TEMP
Internal temperature sensor
–2
mV/°C
voltage gain
t
ADC_CONV
Conversion time
125
ms
Resolution
14
15
bits
V
OS(ADC)
Input offset
1
mV
Z
ADC1
(1)
Effective input resistance (TS)
8
M
Ω
bq27530-G1 not measuring cell
8
M
Ω
voltage
Z
ADC2
(1)
Effective input resistance (BAT)
bq27530-G1 measuring cell voltage
100
k
Ω
I
lkg(ADC)
(1)
Input leakage current
0.3
μ
A
(1)
Specified by design. Not tested in production.
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
UNIT
V
SR
Input voltage range,
V
SR
= V
(SRP)
– V
(SRN)
–0.125
0.125
V
V
(SRP)
and V
(SRN)
t
SR_CONV
Conversion time
Single conversion
1
s
Resolution
14
15
bits
V
OS(SR)
Input offset
10
μ
V
INL
Integral nonlinearity error
±0.007
±0.034
% FSR
Z
IN(SR)
(1)
Effective input resistance
2.5
M
Ω
I
lkg(SR)
(1)
Input leakage current
0.3
μ
A
(1)
Specified by design. Not tested in production.
Copyright © 2012, Texas Instruments Incorporated
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