ZHCS292H september   2009  – february 2021 BQ24040 , BQ24041 , BQ24045

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Device Comparison
  7. 6 Pin Configuration and Functions
  8. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Operational Characteristics (Protection Circuits Waveforms)
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power-Down or Undervoltage Lockout (UVLO)
      2. 8.3.2 Power-up
      3. 8.3.3 Sleep Mode
      4. 8.3.4 New Charge Cycle
      5. 8.3.5 Overvoltage-Protection (OVP) – Continuously Monitored
      6. 8.3.6 Power Good Indication ( PG)
      7. 8.3.7 CHG Terminal Indication
    4. 8.4 Device Functional Modes
      1. 8.4.1  CHG and PG LED Pull-up Source
      2. 8.4.2  Auto Start-up (BQ24041)
      3. 8.4.3  IN-DPM (VIN-DPM or IN-DPM)
      4. 8.4.4  OUT
      5. 8.4.5  ISET
      6. 8.4.6  PRE_TERM – Pre-Charge and Termination Programmable Threshold, BQ24040/5
      7. 8.4.7  ISET2
      8. 8.4.8  TS (BQ24040/5)
      9. 8.4.9  Termination and Timer Disable Mode (TTDM) - TS Terminal High
      10. 8.4.10 Timers, BQ24040 and BQ24045 only
      11. 8.4.11 Termination
      12. 8.4.12 Battery Detect Routine
      13. 8.4.13 Refresh Threshold
      14. 8.4.14 Starting a Charge on a Full Battery
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Typical Application: BQ24040 and BQ24045
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Calculations
            1. 9.2.1.2.1.1 Program the Fast Charge Current, ISET:
            2. 9.2.1.2.1.2 Program the Termination Current Threshold, ITERM:
            3. 9.2.1.2.1.3 TS Function (BQ24040)
            4. 9.2.1.2.1.4 CHG and PG
          2. 9.2.1.2.2 Selecting In and Out Terminal Capacitors
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Typical Application Circuit: BQ24041, with ASI and ASO
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
  11. 10Power Supply Recommendations
  12. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
      1. 11.3.1 Leakage Current Effects on Battery Capacity
  13. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 第三方产品免责声明
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 接收文档更新通知
    4. 12.4 支持资源
    5. 12.5 Trademarks
    6. 12.6 静电放电警告
    7. 12.7 术语表
  14. 13Mechanical, Packaging, and Orderable Information

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订购信息

7.5 Electrical Characteristics

Over junction temperature range 0°C ≤ TJ ≤ 125°C and recommended supply voltage (unless otherwise noted)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
INPUT
UVLOUndervoltage lock-out ExitVIN: 0V → 4V Update based on sim/char3.153.33.45V
VHYS_UVLOHysteresis on VUVLO_RISE fallingVIN: 4V→0V,
VUVLO_FALL = VUVLO_RISE –VHYS-UVLO		175227280mV
VIN-DTInput power good detection threshold is VOUT + VIN-DT(Input power good if VIN > VOUT + VIN-DT); VOUT = 3.6V, VIN: 3.5V → 4V3080145mV
VHYS-INDTHysteresis on VIN-DT fallingVOUT = 3.6V, VIN: 4V → 3.5V31mV
VOVPInput over-voltage protection thresholdVIN: 5V → 12V (BQ24040, BQ24045)6.56.656.8V
VIN: 5V → 12V (BQ24041)6.97.17.3
VHYS-OVPHysteresis on OVPVIN: 11V → 5V95mV
VIN-DPMUSB/Adaptor low input voltage protection. Restricts lout at VIN-DPMFeature active in USB mode; Limit Input Source Current to 50mA; VOUT= 3.5V; RISET = 825Ω4.344.44.46V
Feature active in Adaptor mode; Limit Input Source Current to 50mA; VOUT = 3.5V; RISET = 8254.244.34.46
IIN-USB-CLUSB input I-Limit 100mAISET2 = Float; RISET = 825Ω8592100mA
USB input I-Limit 500mA, BQ24040, BQ24045ISET2 = High; RISET = 825Ω430462500
USB input I-Limit 380mA, BQ24041ISET2 = High; RISET = 825Ω350386420
ISET SHORT CIRCUIT TEST
RISET_SHORTHighest Resistor value considered a fault (short). Monitored for Iout>90mARISET: 540Ω → 250Ω, Iout latches off. Cycle power to Reset.280500Ω
IOUT_CLMaximum OUT current limit Regulation (Clamp)VIN = 5V, VOUT = 3.6V, VISET2 = Low, RISET: 540Ω → 250Ω, IOUT latches off after tDGL-SHORT1.051.4A
BATTERY SHORT PROTECTION
VOUT(SC)OUT terminal short-circuit detection threshold/ precharge thresholdVOUT: 3V → 0.5V, no deglitch0.750.80.85V
VOUT(SC-HYS)OUT terminal Short hysteresisRecovery ≥ VOUT(SC) + VOUT(SC-HYS);
Rising, no Deglitch		77mV
IOUT(SC)Source current to OUT terminal during short-circuit detectionVOUT < 0.8 V101520mA
QUIESCENT CURRENT
IOUT(PDWN)Battery current into OUT terminalVIN = 0V1μA
IOUT(DONE)OUT terminal current, charging terminatedVIN = 6V, VOUT > VOUT(REG)6
IIN(STDBY)Standby current into IN terminalTS = LO, VIN ≤ 6V125μA
ICCActive supply current, IN terminalTS = open, VIN = 6V, TTDM – no load on OUT terminal, VOUT > VOUT(REG), IC enabled0.81mA
BATTERY CHARGER FAST-CHARGE
VOUT(REG)Battery regulation voltageVIN = 5.5V, IOUT = 25mA,
(VTS-45°C ≤ VTS ≤ VTS-0°C, BQ24040)		4.164.24.23V
VIN = 5.5V, IOUT = 25mA,
(VTS-45°C ≤ VTS ≤ VTS-0°C, BQ24045)		4.304.354.40
VO_HT(REG)Battery hot regulation voltageVIN = 5.5V, IOUT = 25mA,
(VTS-45°C≤ VTS ≤ VTS-0°C, BQ24040)		4.024.064.1V
VIN = 5.5V, IOUT = 25mA,
(VTS-45°C ≤ VTS ≤ VTS-0°C, BQ24045)		4.164.24.23
IOUT(RANGE)Programmed Output “fast charge” current rangeVOUT(REG) > VOUT > VLOWV; VIN = 5V, ISET2 = LO, RISET = 540 to 10.8kΩ101000mA
VDO(IN-OUT)Drop-Out, VIN – VOUTAdjust VIN down until IOUT = 0.5A, VOUT = 4.15V, RISET = 540 , ISET2 = Lo (adaptor mode); TJ ≤ 100°C325500mV
IOUTOutput “fast charge” formulaVOUT(REG) > VOUT > VLOWV; VIN = 5V, ISET2 = LoKISET/RISETA
KISETFast charge current factorRISET = KISET /IOUT; 50 < IOUT < 1000 mA510540570AΩ
RISET = KISET /IOUT; 25 < IOUT < 50 mA480527600
RISET = KISET /IOUT; 10 < IOUT < 25 mA350520680
KISETFast charge current factor (BQ24045)RISET = KISET /IOUT; 50 < IOUT < 1000 mA510560585AΩ
RISET = KISET /IOUT; 25 < IOUT < 50 mA480557596
RISET = KISET /IOUT; 10 < IOUT < 25 mA350555680
PRECHARGE – SET BY PRETERM terminal: BQ24040 / BQ24045; Internally Set: BQ24041
VLOWVPre-charge to fast-charge transition threshold2.42.52.6V
IPRE-TERMSee the Termination Section
%PRECHGPre-charge current, default settingVOUT < VLOWV; RISET = 1080Ω; BQ24040: RPRE-TERM= High Z; BQ24041: Internally Fixed182022%IOUT-CC
Pre-charge current formulaRPRE-TERM = KPRE-CHG (Ω/%) × %PRE-CHG (%)RPRE-TERM/KPRE-CHG%
KPRE-CHG% Pre-charge FactorVOUT < VLOWV, VIN = 5V, RPRE-TERM = 2k to 10kΩ; RISET = 1080Ω , RPRE-TERM = KPRE-CHG × %IFAST-CHG, where %IFAST-CHG is 20 to 100%90100110Ω/%
VOUT < VLOWV, VIN = 5V, RPRE-TERM = 1k to 2kΩ; RISET = 1080Ω, RPRE-TERM = KPRE-CHG × %IFAST-CHG, where %IFAST-CHG is 10% to 20%84100117Ω/%
TERMINATION – SET BY PRE-TERM terminal: BQ24040 / BQ24045
%TERMTermination Threshold Current, default settingVOUT > VRCH; RISET = 1k; BQ24040 / BQ24045:
RPRE-TERM= High Z		91011%IOUT-CC
Termination Current Threshold Formula, BQ24040 / BQ24045RPRE-TERM = KTERM (Ω/%) × %TERM (%)RPRE-TERM/ KTERM
KTERM% Term FactorVOUT > VRCH, VIN = 5V, RPRE-TERM = 2k to 10kΩ ; RISET = 750Ω KTERM × %IFAST-CHG, where %IFAST-CHG is 10 to 50%182200216Ω/%
VOUT > VRCH, VIN = 5V, RPRE-TERM = 1k to 2kΩ ; RISET = 750Ω KTERM × %Iset, where %Iset is 5 to 10%174199224
IPRE-TERMCurrent for programming the term. and pre-chg with resistor. ITerm-Start is the initial PRE-TERM curent.RPRE-TERM = 2k, VOUT = 4.15V717581μA
%TERMTermination current formulaRTERM/ KTERM %
ITerm-StartElevated PRE-TERM current for, tTerm-Start, during start of charge to prevent recharge of full battery,808592μA
RECHARGE OR REFRESH – BQ24040 / BQ24045
VRCHRecharge detection threshold – Normal TempVIN = 5V, VTS = 0.5V, VOUT: 4.25V → VRCHVO(REG)
–0.120		VO(REG)–0.095VO(REG)–0.070V
Recharge detection threshold – Hot TempVIN = 5V, VTS = 0.2V, VOUT: 4.15V → VRCHVO_HT(REG)
–0.130		VO_HT(REG)
–0.105		VO_HT(REG)
–0.080		V
BATTERY DETECT ROUTINE – BQ24040 / BQ24045 (NOTE: In Hot mode VO(REG) becomes VO_HT(REG))
VREG-BDVOUT Reduced regulation during battery detectVIN = 5V, VTS = 0.5V, Battery AbsentVO(REG)-0.450VO(REG)-0.400VO(REG)-350V
IBD-SINKSink current during VREG-BD610mA
VBD-HIHigh battery detection thresholdVIN = 5V, VTS = 0.5V, Battery AbsentVO(REG) -0.150VO(REG)-0.100VO(REG)-0.050V
VBD-LOLow battery detection thresholdVIN = 5V, VTS = 0.5V, Battery AbsentVREG-BD
+0.50		VREG-BD +0.1VREG-BD
+0.15		V
BATTERY-PACK NTC MONITOR; TS Terminal: BQ24040 / BQ24045: 10k NTC
INTC-10kNTC bias currentVTS = 0.3V485052μA
INTC-DIS-10k10k NTC bias current when Charging is disabled.VTS = 0V273034μA
INTC-FLDBK-10kINTC is reduced prior to entering TTDM to keep cold thermistor from entering TTDMVTS: Set to 1.525V456.5μA
VTTDM(TS)Termination and timer disable mode Threshold – EnterVTS: 0.5V → 1.7V; Timer Held in Reset155016001650mV
VHYS-TTDM(TS)Hysteresis exiting TTDMVTS: 1.7V → 0.5V; Timer Enabled100mV
VCLAMP(TS)TS maximum voltage clampVTS = Open (Float)180019502000mV
VTS_I-FLDBKTS voltage where INTC is reduce to keep thermistor from entering TTDMINTC adjustment (90 to 10%; 45 to 6.6uS) takes place near this spec threshold.
VTS: 1.425V → 1.525V		1475mV
CTSOptional Capacitance – ESD0.22μF
VTS-0°CLow temperature CHG PendingLow Temp Charging to Pending;
VTS: 1V → 1.5V		120512301255mV
VHYS-0°CHysteresis at 0°CCharge pending to low temp charging;
VTS: 1.5V → 1V		86mV
VTS-10°CLow temperature, half chargeNormal charging to low temp charging;
VTS: 0.5V → 1V		765790815mV
VHYS-10°CHysteresis at 10°CLow temp charging to normal CHG;
VTS: 1V → 0.5V		35mV
VTS-45°CHigh temperature at 4.1VNormal charging to high temp CHG;
VTS: 0.5V → 0.2V		263278293mV
VHYS-45°CHysteresis at 45°CHigh temp charging to normal CHG;
VTS: 0.2V → 0.5V		10.7mV
VTS-60°CHigh temperature DisableHigh temp charge to pending;
VTS: 0.2V → 0.1V		170178186mV
VHYS-60°CHysteresis at 60°CCharge pending to high temp CHG;
VTS: 0.1V → 0.2V		11.5mV
VTS-EN-10kCharge Enable Threshold, (10k NTC)VTS: 0V → 0.175V808896mV
VTS-DIS_HYS-10kHYS below VTS-EN-10k to Disable, (10k NTC)VTS: 0.125V → 0V12mV
THERMAL REGULATION
TJ(REG)Temperature regulation limit125°C
TJ(OFF)Thermal shutdown temperature155°C
TJ(OFF-HYS)Thermal shutdown hysteresis20°C
BAT_EN , BQ24041
IBAT_ENCurrent Sourced out of terminalVBAT_EN < 1.4 V2.359μA
VILLogic LOW enables charger00.4V
VIHLogic HIGH disables charger1.16V
VCLAMPFloating Clamp VoltageFloating BAT_EN terminal1.41.61.8V
LOGIC LIVELS ON ISET2
VILLogic LOW input voltageSink 8 μA0.4V
VIHLogic HIGH input voltageSource 8 μA1.4V
IILSink current required for LOVISET2 = 0.4V29μA
IIHSource current required for HIVISET2 = 1.4V1.19.5μA
VFLTISET2 Float Voltage5759001225mV
AUTO START, ASI AND ASO TERMINALS, BQ24041
VASILHas 200k Internal Pull-down0.4V
VASIH1.3V
VASOLAuto Start Output Sinks 1mA0.4V
VASOHAuto Start Input Sources 1mAVOUT - 0.4V
LOGIC LEVELS ON CHG AND PG
VOLOutput LOW voltageISINK = 5 mA0.4V
ILEAKLeakage current into ICV CHG = 5V, V PG = 5V1µA