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BQ20Z75 Datasheet(PDF) 8 Page - Texas Instruments |
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BQ20Z75 Datasheet(HTML) 8 Page - Texas Instruments |
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8 / 23 page  Not Recommended for New Designs bq20z75 SLUS723C – JULY 2007 – REVISED JULY 2008 www.ti.com Electrical Characteristics (continued) over operating free-air temperature range (unless otherwise noted), TA = –40°C to 85°C, VREG25 = 2.41 V to 2.59 V, VBAT = 14V, CREG25 = 1µF, CREG33 = 2.2µF; typical values at TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VREG25–0. VOH Output voltage high(1) SAFE, IL = –0.5 mA V 5 VOL Low-level output voltage PRES, PFIN, ALERT, IL = 7 mA; 0.4 V CI Input capacitance 5 pF I(SAFE) SAFE source currents SAFE active, SAFE = VREG25 –0.6 V –3 mA Ilkg(SAFE) SAFE leakage current SAFE inactive –0.2 0.2 µA Ilkg Input leakage current 1 µA ADC(2) VREG25+ Input voltage range TS1,TS2, using external Vref –0.2 V 0.2 Conversion time 31.5 ms Resolution (no missing codes) 16 bits Effective resolution 14 15 bits Integral nonlinearity ±0.03 %FSR(3) Offset error(4) 140 250 µV Offset error drift(4) TA = 25°C to 85°C 2.5 18 mV/°C Full-scale error(5) ±0.1% ±0.7% Full-scale error drift 50 PPM/°C Effective input resistance(6) 8 M Ω COULOMB COUNTER Input voltage range –0.20 0.20 V Conversion time Single conversion 250 ms Effective resolution Single conversion 15 bits –0.1 V to 0.20 V ±0.007 ±0.034 Integral nonlinearity %FSR –0.20 V to –0.1 V ±0.007 Offset error (7) TA = 25°C to 85°C 10 µV Offset error drift 0.4 2.45 µV/°C Full-scale error(8) (9) ±0.35% Full-scale error drift 150 PPM/°C Effective input resistance(10) TA = 25°C to 85°C 2.5 M Ω INTERNAL TEMPERATURE SENSOR V(TEMP) Temperature sensor voltage(11) –2.0 mV/°C VOLTAGE REFERENCE Output voltage 1.215 1.225 1.230 V Output voltage drift 65 PPM/°C HIGH FREQUENCY OSCILLATOR f(OSC) Operating frequency 4.194 MHz (1) RC[0:7] bus (2) Unless otherwise specified, the specification limits are valid at all measurement speed modes (3) Full-scale reference (4) Post-calibration performance and no I/O changes during conversion with SRN as the ground reference (5) Uncalibrated performance. This gain error can be eliminated with external calibration. (6) The A/D input is a switched-capacitor input. Since the input is switched, the effective input resistance is a measure of the average resistance. (7) Post-calibration performance (8) Reference voltage for the coulomb counter is typically Vref/3.969 at VREG25 = 2.5 V, TA = 25°C. (9) Uncalibrated performance. This gain error can be eliminated with external calibration. (10) The CC input is a switched capacitor input. Since the input is switched, the effective input resistance is a measure of the average resistance. (11) –53.7 LSB/°C 8 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): bq20z75 |
Similar Part No. - BQ20Z75_14 |
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Similar Description - BQ20Z75_14 |
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