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BQ40Z50-R1 数据表(PDF) 11 Page - Texas Instruments |
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BQ40Z50-R1 数据表(HTML) 11 Page - Texas Instruments |
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11 / 56 page ![]() bq40z50-R1 www.ti.com SLUSCB3 – 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 = –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 VBAT – VOH Output voltage high VBAT > 3.0 V, IOH = –22.5 mA V 1.6 VOL Output voltage low IOL = 1.5 mA 0.4 V High level output ISC –30 –45 –6 0 mA current protection Low level output IOL VBAT > 3.0 V, VOH = 0.4 V 15.75 22.5 29.25 mA current Current matching ILEDCNTLx VBAT = VLEDCNTLx + 2.5 V ±1% between LEDCNTLx CIN Input capacitance 20 pF ILKG Input leakage current 1 µA Frequency of LED fLEDCNTLx 124 Hz pattern 7.14 Electrical Characteristics: 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 M Ω (1) 1 LSB = VREF1/(10 × 2 N) = 1.215/(10 × 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 = –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 7.16 Electrical Characteristics: 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 Internal reference (VREF1) –0.2 1 Input voltage range V External reference (VREG) –0.2 0.8 x VREG Full scale range VFS = VREF1 or VREG –VFS VFS V 16-bit, best fit, –0.1 V to 0.8 x VREF1 ±6.6 Integral nonlinearity(1) LSB 16-bit, best fit, –0.2 V to –0.1 V ±13.1 (1) 1 LSB = VREF1/(2 N) = 1.225/(215) = 37.4 µV (when t CONV = 31.25 ms) Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: bq40z50-R1 |
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