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BQ27Z561-R2 数据表(PDF) 6 Page - Texas Instruments |
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BQ27Z561-R2 数据表(HTML) 6 Page - Texas Instruments |
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6 / 22 page  7.10 Coulomb Counter (CC) Unless otherwise noted, characteristics noted under conditions of TA = –40℃ to 85℃ PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V(CC_IN) Input voltage range –0.1 0.1 V t(CC_CONV) Conversion time Single conversion 1000 ms Effective resolution 1 LSB 3.8 µV Integral nonlinearity 16-bit, best fit over input voltage range –22.3 5.2 +22.3 LSB Differential nonlinearity 16-bit, no missing codes 1.5 LSB Offset error 16- bit post calibration –2.6 1.3 +2.6 LSB Offset error drift 15-bit + sign, post calibration 0.04 0.07 LSB/°C Gain error 15-bit + sign, over input voltage range –492 131 +492 LSB Gain error drift 15-bit + sign, over input voltage range 4.3 9.8 LSB/°C Effective input resistance 7 MΩ 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 (1) Factory calibration 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% BQ27Z561-R2 SLUSE22 – SEPTEMBER 2020 www.ti.com 6 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: BQ27Z561-R2 |
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