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BQ27531-G1 Datasheet(PDF) 7 Page - Texas Instruments |
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BQ27531-G1 Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 21 page  bq27531-G1 www.ti.com SLUSBE7 – MARCH 2013 ADC (TEMPERATURE AND CELL MEASUREMENT) CHARACTERISTICS TA = –40°C to 85°C, 2.4 V < VCC < 2.6 V; typical values at TA = 25°C and VCC = 2.5 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VADC1 Input voltage range (TS) VSS – 2 V 0.125 VADC2 Input voltage range (BAT) VSS – 5 V 0.125 VIN(ADC) Input voltage range 0.05 1 V GTEMP Internal temperature sensor –2 mV/°C voltage gain tADC_CONV Conversion time 125 ms Resolution 14 15 bits VOS(ADC) Input offset 1 mV ZADC1 (1) Effective input resistance (TS) 8 M Ω bq27531-G1 not measuring cell voltage 8 M Ω ZADC2 (1) Effective input resistance (BAT) bq27531-G1 measuring cell voltage 100 k Ω Ilkg(ADC) (1) Input leakage current 0.3 μA (1) Specified by design. Not tested in production. INTEGRATING ADC (COULOMB COUNTER) CHARACTERISTICS TA = –40°C to 85°C, 2.4 V < VCC < 2.6 V; typical values at TA = 25°C and VCC = 2.5 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VSR Input voltage range, VSR = V(SRP) – V(SRN) –0.125 0.125 V V(SRP) and V(SRN) tSR_CONV Conversion time Single conversion 1 s Resolution 14 15 bits VOS(SR) Input offset 10 μV INL Integral nonlinearity error ±0.007 ±0.034 % FSR ZIN(SR) (1) Effective input resistance 2.5 M Ω Ilkg(SR) (1) Input leakage current 0.3 μA (1) Specified by design. Not tested in production. Copyright © 2013, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links :bq27531-G1 |
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