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BQ40Z50-R2 数据表(PDF) 11 Page - Texas Instruments

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部件名 BQ40Z50-R2
功能描述  1-Series, 2-Series, 3-Series, and 4-Series Li-Ion Battery Pack Manager
PDF  51 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

BQ40Z50-R2 数据表(HTML) 11 Page - Texas Instruments

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SLUSCS4 – JUNE 2017
Product Folder Links: bq40z50-R2
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Copyright © 2017, Texas Instruments Incorporated
7.13 LEDCNTLA, LEDCNTLB, LEDCNTLC
Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°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
1.45
V
VIL
Low-level input
0.55
V
VOH
Output voltage high
VBAT > 3.0 V, IOH = –22.5 mA
VBAT –
1.6
V
VOL
Output voltage low
IOL = 1.5 mA
0.4
V
ISC
High level output
current protection
–30
–45
–6 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
Input capacitance
20
pF
ILKG
Input leakage current
1
µA
fLEDCNTLx
Frequency of LED
pattern
124
Hz
(1)
1 LSB = VREF1/(10 × 2
N) = 1.215/(10 × 215) = 3.71 µV
7.14 Coulomb Counter
Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°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
–0.1
0.1
V
Full scale range
–VREF1/10
VREF1/10
V
Integral nonlinearity(1)
16-bit, best fit over input voltage range
±5.2
±22.3
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
7.15 CC Digital Filter
Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°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
(1)
1 LSB = VREF1/(2
N) = 1.225/(215) = 37.4 µV (when t
CONV = 31.25 ms)
7.16 ADC
Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°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
Internal reference (VREF1)
–0.2
1
V
External reference (VREG)
–0.2
0.8 × VREG
Full scale range
VFS = VREF1 or VREG
–VFS
VFS
V
Integral nonlinearity(1)
16-bit, best fit, –0.1 V to 0.8 × VREF1
±6.6
LSB
16-bit, best fit, –0.2 V to –0.1 V
±13.1



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