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BQ27541DRZR Datasheet(PDF) 4 Page - Texas Instruments |
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BQ27541DRZR Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 38 page  POWER-ON RESET 2.5 V LDO REGULATOR (1) INTERNAL TEMPERATURE SENSOR CHARACTERISTICS HIGH FREQUENCY OSCILLATOR bq27541 SLUS861 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com TA = –40°C to 85°C, C(REG) = 0.47µF, 2.45 V < V(REGIN) = VBAT < 5.5 V; typical values at TA = 25°C and V(REGIN) = VBAT = 3.6 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIT+ Positive-going battery voltage input at VCC 2.05 2.20 2.31 V VHYS Power-on reset hysteresis 45 115 185 mV TA = –40°C to 85°C, C(REG) = 0.47 µF, 2.45 V < V(REGIN) = VBAT < 5.5 V; typical values at TA = 25°C and V(REGIN) = VBAT = 3.6 V (unless otherwise noted) PARAMETER TEST CONDITION MIN NOM MAX UNIT 2.7 V ≤ V(REGIN) ≤ 5.5 V, TA = –40°C to 85°C 2.42 2.48 2.57 V IOUT ≤ 16mA Regulator output voltage, VO REG25 2.45 V ≤ V(REGIN) < 2.7 V (low TA = –40°C to 85°C 2.4 V battery), IOUT ≤ 3mA 2.7 V, IOUT ≤ 16 mA 280 VDO Regulator dropout voltage TA = –40°C to 85°C mV 2.45 V, IOUT ≤ 3 mA 50 V(REGIN) = 3.6 V, Regulator output change ΔV(REGTEMP) TA = –40°C to 85°C 0.3% with temperature IOUT = 16 mA ΔV(REGLINE) Line regulation 2.7 V ≤ V(REGIN) ≤ 5.5 V, IOUT = 16 mA 11 25 mV 0.2 mA ≤ IOUT ≤ 3 mA, V(REGIN) = 2.45 V 34 40 ΔV(REGLOAD) Load regulation mV 3 mA ≤ IOUT ≤ 16 mA, V(REGIN) = 2.7 V 31 IOS (2) Short circuit current limit V(REG25) = 0 V, TA = –40°C to 85°C 250 mA (1) LDO output current, IOUT, is the sum of internal and external load currents. (2) Specified by design. Not production tested. TA = –40°C to 85°C, C(REG) = 0.47µF, 2.45 V < V(REGIN) = VBAT < 5.5 V; typical values at TA = 25°C and V(REGIN) = VBAT = 3.6 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT G(TEMP) Temperature sensor voltage gain –2 mV/°C TA = –40°C to 85°C, C(REG) = 0.47µF, 2.45 V < V(REGIN) = VBAT < 5.5 V; typical values at TA = 25°C and V(REGIN) = VBAT = 3.6 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% 0.38% 2.0% fEIO Frequency error(1) (2) TA = –20°C to 70°C –3.0% 0.38% 3.0% 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 startup time is defined as the time it takes for the oscillator output frequency to be ±3% of typical oscillator frequency. 4 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): bq27541 |
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