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BQ24251YFFR Datasheet(PDF) 5 Page - Texas Instruments |
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BQ24251YFFR Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 49 page  ISET CHG ISET K I R = bq24250 bq24251 bq24253 www.ti.com SLUSBA1C – OCTOBER 2012 – REVISED JUNE 2013 ELECTRICAL CHARACTERISTICS VUVLO < VIN < VOVP and VIN > VBAT+VSLP, TJ = 0ºC-125°C and TJ = 25°C for typical values (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT CURRENTS VDPM < VIN < VOVP AND VIN > 13 VBAT+VSLP PWM switching, CE Enable mA VDPM < VIN < VOVP AND VIN > IIN Supply current from IN VBAT+VSLP PWM switching, CE 5 Disable 0°C< TJ < 85°C, High-Z Mode 170 225 μA Battery discharge current in 0°C< TJ < 85°C, VBAT = 4.2 V, high impedance mode, (BAT, 16 22 VIN = 0V or 5V, High-Z Mode SW, SYS) IBAT μA Battery discharge current in 0°C< TJ < 85°C, VBAT = 4.2 V, SYSOFF mode, (BAT, SW, 1 VIN < UVLO, SYSOFF Mode SYS) POWER-PATH MANAGEMENT MINSYS stage (no DPM or DPPM) –1% 3.52 1% VMINSYS MINSYS stage (DPM or DPPM active) –1.50% 1.50% –200mV VSYSREG System Regulation Voltage V VBAT BATREG stage + ICHG Ron VBATREG VBATREG VBATREG SYSREG stage +2.1% +3.1% +4.1% VBAT – Enter supplement mode VSPLM VBAT = 3.6V V voltage threshold 40mV Exit supplement mode current ISPLM VBAT = 3.6V 20 mA threshold Deglitch Time, OUT Short Measured from (VBAT – VSYS) = 300 tDGL(SC1) Circuit during Discharge or 740 μs mV Supplement Mode Recovery Time, OUT Short tREC(SC1) Circuit during Discharge or 64 ms Supplement Mode BATTERY CHARGER Measured from BAT to SYS, VBAT = 20 30 4.2V (WCSP) Internal battery charger RON(BAT-SYS) m Ω MOSFET on-resistance Measured from BAT to SYS, VBAT = 30 40 4.2V (QFN) Operating in voltage regulation, I2C host mode 3.5 4.44 V Programmable Range SA mode or I2C default mode 4.2 VBATREG TJ = 25°C –0.5% 0.5% Voltage Regulation Accuracy TJ = 0°C to 125°C –0.75 0.75 ICHG Fast Charge Current Range VLOWV ≤ VBAT < VBAT(REG) 500 2000 mA Fast Charge Current Accuracy I2C mode –7% 7% ICHG-LOW Low Charge Current Setting Set via I2C 297 330 363 mA Programmable Fast Charge KISET 232.5 250 267.5 A Ω Current Factor Maximum ISET pin voltage (in VISET 0.42 V regulation) Short circuit resistance RISET-SHORT 45 55 75 Ω threshold Pre-charge to fast charge Rising 2.9 3 3.1 V threshold VLOWV Hysteresis for VLOWV Battery voltage falling 100 mV Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: bq24250 bq24251 bq24253 |
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