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BQ27Z561-R1 数据表(PDF) 6 Page - Texas Instruments

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部件名 BQ27Z561-R1
功能描述  Impedance Track battery gas gauge solution for 1-series cell li-ion battery packs
PDF  24 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

BQ27Z561-R1 数据表(HTML) 6 Page - Texas Instruments

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BQ27Z561-R1
SLUSDH5 – MARCH 2019
www.ti.com
Product Folder Links: BQ27Z561-R1
Submit Documentation Feedback
Copyright © 2019, Texas Instruments Incorporated
Coulomb Counter (CC) (continued)
Unless otherwise noted, characteristics noted under conditions of TA = –40 to 85℃
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Gain Error drift
15-bit + sign, Over input voltage
range
4.3
9.8
LSB/°C
Effective input resistance
7
MΩ
(1)
Factory calibration.
7.11 Analog Digital Converter (ADC)
Unless otherwise noted, characteristics noted under conditions of TA = –40 to 85℃
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VADC_TS_GPIO
Input voltage range
VFS = VREF2
–0.2
1.0
V
VFS = VREG18 * 2
–0.2
1.44
V
VBAT_MODE
Battery Input Voltage
–0.2
5.5
V
Integral nonlinearity
16-bit, Best fit, –0.1 V to 0.8 * VREF2
–8.4
+8.4
LSB
Differential nonlinearity
16-bit, No missing codes
1.5
LSB
Offset error
16-bit Post-Calibration(1), VFS =
VREF2
–4.2
1.8
+4.2
LSB
Offset error drift
16-bit Post-Calibration(1), VFS =
VREF2
0.02
0.1
LSB/°C
Gain Error
16-bit, –0.1 to 0.8 * VFS
–492
131
+492
LSB
Gain Error drift
16-bit, –0.1 to 0.8 * VFS
2
4.5
LSB/°C
Effective input resistance
8
MΩ
t(ADC_CONV)
Conversion time
11.7
ms
Effective resolution
14
15
bits
7.12 Internal Oscillator Specifications
Unless otherwise noted, characteristics noted under conditions of TA = –40 to 85℃
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
High Frequency Oscillator (HFO)
fHFO
Operating frequency
16.78
MHz
fHFO
HFO frequency drift
TA = –20°C to 70°C
–2.5%
2.5%
TA = –40°C to 85°C
–3.5
3.5
tHFOSTART
HFO Start-up time
TA = –40°C to 85°C, oscillator
frequency within +/- 3% of nominal
frequency or a power-on reset
4
ms
Low Frequency Oscillator (LFO)
fLFO
Operating frequency
65.536
kHz
fLFO(ERR)
Frequency error
TA = –40°C to 85°C
–2.5%
+2.5%
(1)
Used for CC and LDO
7.13 Voltage Reference1 (REF1)
Unless otherwise noted, characteristics noted under conditions of TA = –40 to 85℃
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VREF1
Internal Reference Voltage(1)
1.195
1.21
1.227
V
VREF1_DRIFT
Internal Reference Voltage
Drift
TA = –40 °C to 85°C
–80
+80
PPM/C



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