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BQ20Z80A Datasheet(PDF) 5 Page - Texas Instruments |
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BQ20Z80A Datasheet(HTML) 5 Page - Texas Instruments |
5 / 22 page www.ti.com POWER-ON RESET 2.10 2.15 2.20 2.25 2.30 2.35 2.40 2.45 2.50 -20 -10 0 10 20 30 40 50 60 70 80 100 105 110 115 120 125 130 135 140 TA - Free-Air Temperature - °C POWER ON RESET BEHAVIOR vs FREE-AIR TEMPERATURE VIT- Vhys INTEGRATING ADC (Coulomb Counter) CHARACTERISTICS PLL SWITCHING CHARACTERISTICS OSCILLATOR bq20z80 bq20z80A SLUS782 – JULY 2007 VDD = 3 V to 3.6 V, TA = –40°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIT– Negative-going voltage input 2.1 2.3 2.5 V VHYS Power-on reset hysteresis 50 150 200 mV VDD = 3 V to 3.6 V, TA = –40°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V(SR) Input voltage range, V(SR2) and V(SR1) V(SR) = V(SR2) – V(SR1) –0.25 0.25 V V(SROS) Input offset 1 μV INL Integral nonlinearity error 0.004% 0.019% VDD = 3 V to 3.6 V, TA = –40°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 the trimmed frequency of the internal system clock which is 128 oscillator frequency, nominally 4.194 MHz. VDD = 3 V to 3.6 V, TA = –40°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ROSC = 100 k Ω –2% 0.25% 2% f(exo) Frequency error from 32.768 kHz ROSC = 100 k Ω, V DD = 3.3 V –1% 0.25% 1% XCK1 = 12-pF XTAL –0.25% 0.25% ROSC = 100 k Ω 250 μs f(sxo) Start-up time (1) XCK1 = 12-pF XTAL 200 ms (1) The start-up time is defined as the time it takes for the oscillator output frequency to be within 1% of the specified frequency. 5 Submit Documentation Feedback |
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