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BQ24018DRCT Datasheet(PDF) 3 Page - Texas Instruments |
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BQ24018DRCT Datasheet(HTML) 3 Page - Texas Instruments |
3 / 24 page ( ) SET PRECHG SET O(PRECHG) K x V ( ) ( ) I = R( ) æ ö ç ÷ m ç ÷ è ø ISET ISET ISET O(OUT) V( ) I = K + 10 A ( ) x R( ) ( ) SET SET SET O(OUT) K x V ( ) ( ) I = R( ) (1) (4) bq24010, bq24012 bq24013, bq24014, bq24018 www.ti.com SLUS530K – SEPTEMBER 2002 – REVISED JANUARY 2014 ELECTRICAL CHARACTERISTICS (continued) over 0°C ≤ TJ ≤ 125°C and recommended supply voltage, (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TA = 25°C –0.5% 0.5% Voltage regulation accuracy –1% 1% V(DO) Dropout voltage (V(IN) – V(OUT)) VO(REG) + V(DO–MAX)) ≤ VCC, IO(OUT) = 1A 650 790 mV CURRENT REGULATION VCC ≥ 4.5 V, VIN ≥ 4.5 V, VI(BAT) > V(LOWV), 100 1000 VIN – VI(BAT) > V(DO–MAX) IO(OUT) (1) Output current range mA See note (2) 25 100 bq24010, bq24012, Voltage on ISET pin, VCC ≥ 4.5 V, 2.45 2.50 2.55 V bq24013, V(SET) Output current set voltage VIN ≥ 4.5 V, VI(BAT) > V(LOWV), bq24014 VIN – VI(BAT) > V(DO–MAX), VO(REG) = 4.2 V bq24018 2.548 2.6 2.652 V 50 mA ≤ IO(OUT) ≤ 1000 mA, V(LOWV) < V(OUT) < V(RCH) 315 335 355 25 mA ≤ IO(OUT) < 50 mA, V(LOWV) < V(OUT) < V(RCH) 315 372 430 K(SET) Output current ISET factor 10 mA ≤ IO(OUT) < 100 mA, V(OUT) < V(LOWV) 350 1000 2.5 mA ≤ IO(OUT) < 10 mA, V(OUT) < V(LOWV) 450 2.5 mA ≤ IO(OUT) < I(PGM), V(OUT) < V(RCH) 355(3) PRE-CHARGE AND SHORT-CIRCUIT CURRENT REGULATION Pre-charge to fast-charge transition V(LOWV) Voltage on BAT pin 2.80 2.95 3.10 V threshold Pre-charge to short-charge transition V(SC) Voltage on BAT pin 1 1.4 1.8 V threshold IO(PRECHG) (4) Pre-charge range V(SC) < VI(BAT) < V(LOWV), t < t(PRECHG) 10 100 mV V(PRECHG) Pre-charge set voltage Voltage on ISET pin, V(SC) < VI(BAT) < V(LOWV) 225 250 280 mV ISC Short circuit current V(SC) > VI(BAT) 660 900 1200 μA (2) Specified by design. Not production tested. (3) The ISET pin may be used as a current monitor during voltage regulation by applying the following equation: This equation is also used for calculating the termination point. Copyright © 2002–2014, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: bq24010, bq24012 bq24013, bq24014, bq24018 |
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