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BQ20851 Fiches technique(PDF) 5 Page - Texas Instruments |
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BQ20851 Fiches technique(HTML) 5 Page - Texas Instruments |
5 / 53 page bq20851-V1P2 SLUS575 − AUGUST 2003 www.ti.com 5 Figure 1 Vhys VIT− TA − Free-Air Temperature − °C POR BEHAVIOR vs FREE-AIR TEMPERATURE 2.50 2.45 2.40 2.35 2.30 2.25 2.20 2.15 2.10 −20 −5 10 25 40 55 70 85 150 145 140 135 130 125 120 115 110 INTEGRATING ADC CHARACTERISTICS VDD = 3.0 V to 3.6 V, TA = −20°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V(SR) Input voltage range, V(SR2) and V(SR1) VSR = V(SR2) – V(SR1) –0.3 1.0 V V(SROS) Input offset 1 µV INL Integral nonlinearity error 0.003% 0.009% PLL SWITCHING CHARACTERISTICS VDD = 3.0 V to 3.6 V, TA = −20°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT t(sp) Start-up time(1) ±0.5% frequency error 2 5 ms (1) The frequency error is measured from 32.768 Hz. Internal Oscillator VDD = 3.0 V to 3.6 V, TA = −20°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT f(exo) Frequency error(1) −2% 2% f(exo) Frequency error(1) VDD = 3.3 V −1% 1% f(sxo) Start-up time(2) 275 µs (1) The frequency error is measured from 32.768 Hz. (2) The start-up time is defined as the time it takes for the oscillator output frequency to be ±1%. |
Numéro de pièce similaire - BQ20851 |
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Description similaire - BQ20851 |
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