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BQ24071RHLT Datasheet(PDF) 4 Page - Texas Instruments |
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BQ24071RHLT Datasheet(HTML) 4 Page - Texas Instruments |
4 / 26 page www.ti.com ELECTRICAL CHARACTERISTICS bq24070 bq24071 SLUS694B – MARCH 2006 – REVISED AUGUST 2006 over junction temperature range (0°C ≤ T J ≤ 125°C) and the recommended supply voltage range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT BIAS CURRENTS ICC(SPLY) Active supply current, VCC VVCC > VVCC(min) 1 2 mA VIN < V(BAT) Sleep current (current into BAT ICC(SLP) 2.6 V ≤ V I(BAT)≤ VO(BAT-REG), 2 5 pin) Excludes load on OUT pin VI(AC) ≤ 6V, Total current into IN pin with ICC(IN-STDBY) Input standby current chip disabled, Excludes all loads, 200 CE=LOW, after t(CE-HOLDOFF) delay µA Total current into BAT pin with input present and chip disabled; ICC(BAT-STDBY) BAT standby current Excludes all loads, CE=LOW, 45 65 after t(CE-HOLDOFF) delay, 0°C ≤ T J≤ 85°C IIB(BAT) Charge done current, BAT Charge DONE, input supplying the load 1 5 OUT PIN-VOLTAGE REGULATION bq24070 VI(AC)≥ 4.4 V+VDO 4.4 4.5 Output regulation VO(OUT-REG) V voltage bq24071 VI(AC)≥ 6.0 V+VDO 6.0 6.3 OUT PIN – DPPM REGULATION V(DPPM-SET) DPPM set point(1) VDPPM-SET < VOUT 2.6 3.8 V I(DPPM-SET) DPPM current source Input present 95 100 105 µA SF DPPM scale factor V(DPPM-REG)= V(DPPM-SET) × SF 1.139 1.150 1.162 OUT PIN – FET (Q1, Q2) DROP-OUT VOLTAGE ®DS(on)) VI(AC)≥ VCC(min), Mode = High, V(ACDO) AC to OUT dropout voltage(2) 300 475 II(AC) = 1 A, (IO(OUT)+ IO(BAT)), or no input mV BAT to OUT dropout voltage V(BATDO) VI (BAT)≥ 3 V, Ii(BAT)= 1.0 A, VCC < Vi(BAT) 40 100 (discharging) OUT PIN - BATTERY SUPPLEMENT MODE Enter battery supplement mode VI(OUT) (battery supplements OUT VBSUP1 VI(BAT)> 2 V ≤ V I(BAT) current in the presence of input – 60 mV source V VI(OUT) VBSUP2 Exit battery supplement mode VI(BAT)> 2 V ≥ V I(BAT) – 20 mV OUT PIN - SHORT CIRCUIT Current source between BAT to OUT for BAT to OUT short-circuit IOSH1 short-circuit recovery to 10 mA recovery VI(OUT)≤ VI(BAT) –200 mV RSHAC AC to OUT short-circuit limit VI(OUT) ≤ 1 V 500 Ω BAT PIN CHARGING – PRECHARGE Precharge to fast-charge V(LOWV) Voltage on BAT 2.9 3 3.1 V transition threshold Deglitch time for fast-charge to tFALL = 100 ns, 10 mV overdrive, TDGL(F) 22.5 ms precharge transition(3) VI(BAT) decreasing below threshold 1 V < VI(BAT) < V(LOWV), t < t(PRECHG), IO(PRECHG) Precharge range 10 150 mA IO(PRECHG) = (K(SET) × V(PRECHG))/ RSET V(PRECHG) Precharge set voltage 1 V < VI(BAT) < V(LOWV), t < t(PRECHG) 225 250 275 mV BAT PIN CHARGING - CURRENT REGULATION Vi (BAT) > V(LOWV), Mode = High IO(BAT) Battery charge current range (4) IOUT(BAT) = (K(SET) × V(SET) / RSET), 100 1000 1500 mA VI(OUT) > VO(OUT-REG) + V(DO-MAX) RPBAT BAT to OUT pullup Vi (BAT)< 1 V 1000 Ω (1) V(DPPM-SET) is scaled up by the scale factor for controlling the output voltage V(DPPM-REG). (2) VDO(max), dropout voltage is a function of the FET, RDS(on), and drain current. The dropout voltage increases proportionally to the increase in current. (3) All deglitch periods are a function of the timer setting and is modified in DPPM or thermal regulation modes by the percentages that the program current is reduced. (4) When input current remains below 2 A, the battery charging current may be raised until the thermal regulation limits the charge current. 4 Submit Documentation Feedback |
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