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BQ40Z50-R2 数据表(PDF) 12 Page - Texas Instruments |
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BQ40Z50-R2 数据表(HTML) 12 Page - Texas Instruments |
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12 / 55 page ![]() 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 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 (1) 1 LSB = VREF1/(10 × 2N) = 1.215/(10 × 215) = 3.71 µV 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 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 BQ40Z50-R2 SLUSCS4C – JUNE 2017 – REVISED APRIL 2021 www.ti.com 12 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: BQ40Z50-R2 |
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