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BQ28Z610-R1 数据表(PDF) 8 Page - Texas Instruments |
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BQ28Z610-R1 数据表(HTML) 8 Page - Texas Instruments |
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8 / 32 page  8 BQ28Z610-R1 SLUSE07 – JANUARY 2020 www.ti.com Product Folder Links: BQ28Z610-R1 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated (1) Assured by design 7.15 Internal Temperature Sensor Typical values stated where TA = 25ºC and VCC = 7.2 V, Min/Max values stated where TA = –40ºC to 85ºC and VCC = 2.2 V to 7.6 V (unless otherwise noted) PARAMETER TEST CONDITION MIN TYP MAX UNIT VTEMP Internal temperature sensor voltage drift VTEMPP –1.9 –2.0 –2.1 mV/°C VTEMPP – VTEMPN (1) 0.177 0.178 0.179 7.16 NTC Thermistor Measurement Support Typical values stated where TA = 25ºC and VCC = 7.2 V, Min/Max values stated where TA = –40ºC to 85ºC and VCC = 2.2 V to 7.6 V (unless otherwise noted) PARAMETER TEST CONDITION MIN TYP MAX UNIT RNTC(PU) Internal pull-up resistance TS1 14.4 18 21.6 kΩ RNTC(DRIFT) Resistance drift over temperature TS1 –360 –280 –200 PPM/°C 7.17 High-Frequency Oscillator Typical values stated where TA = 25ºC and VCC = 7.2 V, Min/Max values stated where TA = –40ºC to 85ºC and VCC = 2.2 V to 7.6 V (unless otherwise noted) PARAMETER TEST CONDITION MIN TYP MAX UNIT fHFO Operating frequency 16.78 MHz fHFO(ERR) Frequency error TA = –20°C to 70°C, includes frequency drift –2.5% ±0.25% 2.5% TA = –40°C to 85°C, includes frequency drift –3.5% ±0.25% 3.5% tHFO(SU) Start-up time TA = –20°C to 85°C, Oscillator frequency within +/–3% of nominal, CLKCTL[HFRAMP] = 1 4 ms Oscillator frequency within +/–3% of nominal, CLKCTL[HFRAMP] = 0 100 µs 7.18 Low-Frequency Oscillator Typical values stated where TA = 25ºC and VCC = 7.2 V, Min/Max values stated where TA = –40ºC to 85ºC and VCC = 2.2 V to 7.6 V (unless otherwise noted) PARAMETER TEST CONDITION MIN TYP MAX UNIT fLFO Operating frequency 262.144 kHz fLFO(LP) Operating frequency in low power mode 247 kHz fLFO(ERR) Frequency error TA = –20°C to 70°C, includes frequency drift –1.5% ±0.25% 1.5% TA = –40°C to 85°C, includes frequency drift –2.5% ±0.25% 2.5% fLFO(LPERR) Frequency error in low power mode –5% 5% fLFO(FAIL) Failure detection frequency 30 80 100 kHz 7.19 Voltage Reference 1 Typical values stated where TA = 25ºC and VCC = 7.2 V, Min/Max values stated where TA = –40ºC to 85ºC and VCC = 2.2 V to 7.6 V (unless otherwise noted) PARAMETER TEST CONDITION MIN TYP MAX UNIT VREF1 Internal reference voltage TA = 25°C, after trim 1.215 1.220 1.225 V VREF1(DRIFT) Internal reference voltage drift TA = 0°C to 60°C, after trim ±50 PPM/°C TA = –40°C to 85°C, after trim ±80 |
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