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BQ40Z50-R1 Datasheet, PDF (11/55 Pages) Texas Instruments – Li-Ion Battery Pack Manager | |||
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bq40z50-R1
SLUSCB3 â JULY 2015
7.13 Electrical Characteristics: LEDCNTLA, LEDCNTLB, LEDCNTLC
Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
VIH
High-level input
VIL
Low-level input
VOH
Output voltage high VBAT > 3.0 V, IOH = â22.5 mA
1.45
VBAT â
1.6
V
0.55 V
V
VOL
Output voltage low
IOL = 1.5 mA
ISC
High level output
current protection
0.4 V
â30
â45
â6 0 mA
IOL
Low level output
current
VBAT > 3.0 V, VOH = 0.4 V
15.75
22.5
29.25 mA
ILEDCNTLx
Current matching
between LEDCNTLx
VBAT = VLEDCNTLx + 2.5 V
±1%
CIN
ILKG
fLEDCNTLx
Input capacitance
Input leakage current
Frequency of LED
pattern
20
pF
1 µA
124
Hz
7.14 Electrical Characteristics: Coulomb Counter
Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
Input voltage range
â0.1
0.1 V
Full scale range
Integral nonlinearity(1)
16-bit, best fit over input voltage range
âVREF1/10
±5.2
VREF1/10
±22.3
V
LSB
Offset error
16-bit, Post-calibration
±5
±10 µV
Offset error drift
15-bit + sign, Post-calibration
0.2
0.3 µV/°C
Gain error
15-bit + sign, over input voltage range
±0.2%
±0.8% FSR
Gain error drift
15-bit + sign, over input voltage range
150 PPM/°C
Effective input resistance
2.5
MΩ
(1) 1 LSB = VREF1/(10 à 2N) = 1.215/(10 à 215) = 3.71 µV
7.15 Electrical Characteristics: CC Digital Filter
Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
Conversion time
Single conversion
250
ms
Effective resolution
Single conversion
15
Bits
7.16 Electrical Characteristics: ADC
Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
Input voltage range
Full scale range
Integral nonlinearity(1)
Internal reference (VREF1)
External reference (VREG)
VFS = VREF1 or VREG
16-bit, best fit, â0.1 V to 0.8 x VREF1
16-bit, best fit, â0.2 V to â0.1 V
â0.2
â0.2
âVFS
1
V
0.8 x VREG
VFS
V
±6.6
LSB
±13.1
(1) 1 LSB = VREF1/(2N) = 1.225/(215) = 37.4 µV (when tCONV = 31.25 ms)
Copyright © 2015, Texas Instruments Incorporated
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