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BQ27520YZFT-G1 Datasheet(PDF) 7 Page - Texas Instruments |
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BQ27520YZFT-G1 Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 49 page  bq27520-G1 www.ti.com SLUS955A – JAN 2011 – REVISED AUGUST 2011 3.3 POWER-ON RESET TA = –40°C to 85°C, typical values at TA = 25°C and VREGIN = 3.6 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIT+ Positive-going battery voltage input at VCC 2.09 2.20 2.31 V VHYS Power-on reset hysteresis 45 115 185 mV 3.4 2.5V LDO REGULATOR TA = 25°C, CLDO25 = 1μF, VREGIN = 3.6V (unless otherwise noted) PARAMETER TEST CONDITION MIN NOM MAX UNIT 2.5 V LDO REGULATOR(1) 2.7V ≤ VREGIN ≤ 4.5V, IOUT ≤ 16mA TA = –40°C to 85°C 2.4 2.5 2.54 V VREG25 Regulator output voltage 2.45V ≤ VREGIN < 2.7V (low battery), TA = –40°C to 85°C 2.4 V IOUT ≤ 3mA CE High-level input VIH(CE) 2.65 voltage VREGIN = 2.7 to 4.5V TA = –40°C to 85°C V CE Low-level input VIL(CE) 0.8 voltage 2.7V, IOUT ≤ 16mA TA = –40°C to 85°C 325 VDO Regulator dropout voltage mV 2.45V, IOUT ≤ 3mA TA = –40°C to 85°C 50 Regulator output change ΔVREGTEMP VREGIN = 3.6V, IOUT = 16mA TA = –40°C to 85°C 0.5% with temperature ΔVREGLINE Line regulation 2.7V ≤ VREGIN ≤ 4.5V, IOUT = 16mA 18 40 mV 0.2mA ≤ IOUT ≤ 3mA, VREGIN = 2.45 V 34 40 ΔVREGLOAD Load regulation mV 3mA ≤ IOUT ≤ 16mA, VREGIN = 2.7 V 31 ISHORT (2) Short circuit current limit VREG25 = 0V TA = –40°C to 85°C 250 mA (1) LDO output current, IOUT, is the sum of internal and external load currents. (2) Assured by design. Not production tested. 3.5 INTERNAL TEMPERATURE SENSOR 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 GTEMP Temperature sensor voltage gain –2 mV/ °C 3.6 HIGH-FREQUENCY OSCILLATOR 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 fOSC Operating frequency 2.097 MHz TA = 0°C to 60°C –2% 0.38% 2% fEIO Frequency error(1) (2) TA = –20°C to 70°C –3% 0.38% 3% TA = –40°C to 85°C –4.5% 0.38% 4.5% tSXO Start-up time(3) 2.5 5 ms (1) The frequency error is measured from 2.097 MHz. (2) The frequency drift is included and measured from the trimmed frequency at VCC = 2.5 V, TA = 25°C. (3) The start-up time is defined as the time it takes for the oscillator output frequency to be within ±3% of typical oscillator frequency. Copyright © 2011, Texas Instruments Incorporated ELECTRICAL SPECIFICATIONS 7 Submit Documentation Feedback focus.ti.com: bq27520-G1 |
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