BQ40Z60_16 Datasheet, PDF (10/47 Pages) Texas Instruments – Programmable Battery Management Unit

bq40z60
SLUSAW3C – DECEMBER 2014 – REVISED JULY 2015
ADC⁽¹⁾ (continued)
Over-operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
Offset error drift
Gain error
Gain error drift
Effective input resistance
16-bit, Post-calibration, V_FS = V_REF1
16-bit, –0.1 V to 0.8 × V_FS
16-bit, –0.1 V to 0.8 × V_FS
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MIN
TYP
0.6
±0.2%
8
MAX
3
±0.8%
150
UNIT
µV/°C
FSR
PPM/°C
MΩ
8.16 ADC Digital Filter
Typical values stated where T_A = 25°C and VCC = 10.8 V, Min/Max values stated where T_A = –40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
ADCTL[SPEED1, SPEED0] = 0, 0
31.25
Conversion time
ADCTL[SPEED1, SPEED0] = 0, 1
ADCTL[SPEED1, SPEED0] = 1, 0
15.63
ms
7.81
ADCTL[SPEED1, SPEED0] = 1, 1
1.95
Resolution
No missing codes, ADCTL[SPEED1, SPEED0] = 0, 0
16
Bits
With sign, ADCTL[SPEED1, SPEED0] = 0, 0
14
15
With sign, ADCTL[SPEED1, SPEED0] = 0, 1
13
14
Effective resolution
Bits
With sign, ADCTL[SPEED1, SPEED0] = 1, 0
11
12
With sign, ADCTL[SPEED1, SPEED0] = 1, 1
9
10
8.17 ADC Multiplexer
Typical values stated where T_A = 25°C and VCC = 10.8 V, Min/Max values stated where T_A = –40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
VC1–VSS, VC2–VC1, VC3–VC2, VC4–VC3
0.1980
0.2000
0.2020
K
Scaling factor
VC4–VSS, ACP–VSS
V_REF2
HSRN–VSS
0.049
0.490
0.049
0.050
0.500
0.050
0.051
—
0.510
0.051
VC4–VSS, ACP–VSS
–0.2
20
V_IN
Input voltage range
TSx
–0.2
TSx
–0.2
I_LKG
Input leakage current
VC1, VC2, VC3, VC4, cell balancing off, cell
detach detection off, ADC multiplexer off
0.8 × V_REF1
V
0.8 × V_REG
1 µA
8.18 Cell Balancing Support
Typical values stated where T_A = 25°C and VCC = 10.8 V, Min/Max values stated where T_A = –40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
R_CB
Internal cell balance
resistance
R_DS(ON) for internal FET switch at 2 V < V_DS < 4 V
200 Ω
8.19 Cell Detach Detection
Typical values stated where T_A = 25°C and VCC = 10.8 V, Min/Max values stated where T_A = –40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
I_CD
Internal cell detach
check current
VCx > VSS + 0.8 V
30
50
70 µA
10
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