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BQ27421-G1 Datasheet(PDF) 6 Page - Texas Instruments |
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BQ27421-G1 Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 28 page  bq27421-G1 SLUSB85E – MAY 2013 – REVISED JANUARY 2016 www.ti.com 7.8 ADC (Temperature and Cell Measurement) Characteristics TA = –40°C to 85°C; typical values at TA = 30°C and VREGIN = 3.6 V (unless otherwise noted) (Force Note1) (1) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT BAT pin voltage measurement VIN(BAT) Voltage divider enabled. 2.45 4.5 V range. Conversion time 125 ms tADC_CONV Effective resolution 15 bits (1) Specified by design. Not tested in production. 7.9 Integrating ADC (Coulomb Counter) Characteristics TA = –40°C to 85°C; typical values at TA = 30°C and VREGIN = 3.6 V (unless otherwise noted)(Force Note1) (1) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VSR Input voltage range from BAT to BAT ± 25 mV SRX pins tSR_CONV Conversion time Single conversion 1 s Effective Resolution Single conversion 16 bits (1) Assured by design. Not tested in production. 7.10 Integrated Sense Resistor Characteristics, –40°C to 85°C TA = –40°C to 85°C; typical values at TA = 30°C and VREGIN = 3.6 V (unless otherwise noted) (Force Note1) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Resistance of Integrated Sense SRXRES (1) TA = 30°C 7 m Ω Resistor from SRX to BAT Long term RMS, average device 2000 mA utilization Recommended Sense Resistor input Peak RMS current, 10% device ISRX (2) 2500 mA current utilization(3) Peak pulsed current, 250 ms 3500 mA maximum, 1% device utilization,(3) (1) Firmware compensation applied for temperature coefficient of resistor. (2) Specified by design. Not tested in production. (3) Device utilization is the long-term usage profile at a specific condition compared to the average condition. 7.11 Integrated Sense Resistor Characteristics, –40°C to 70°C TA = –40°C to 70°C; typical values at TA = 30°C and VREGIN = 3.6 V (unless otherwise noted) (Force Note1) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Resistance of Integrated Sense SRXRES (1) TA = 30°C 7 m Ω Resistor from SRX to BAT Long term RMS, average device 2000 mA utilization Recommended Sense Resistor input Peak RMS current, 10% device ISRX (2) 3500 mA current utilization(3) Peak pulsed current, 250 ms 4500 mA maximum, 1% device utilization,(3) (1) Firmware compensation applied for temperature coefficient of resistor. (2) Specified by design. Not tested in production. (3) Device utilization is the long-term usage profile at a specific condition compared to the average condition. 7.12 I 2C-Compatible Interface Communication Timing Characteristics TA = –40°C to 85°C; typical values at TA = 30°C and VREGIN = 3.6 V (unless otherwise noted) (Force Note1) (1) MIN NOM MAX UNIT STANDARD Mode (100 kHz) (1) Specified by design. Not production tested. 6 Submit Documentation Feedback Copyright © 2013–2016, Texas Instruments Incorporated Product Folder Links: bq27421-G1 |
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Similar Description - BQ27421-G1_16 |
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