SLUSD36 September   2017

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
  7. 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 Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Power-On-Reset (POR)
      2. 8.3.2  Device Power Up from Battery without Input Source
      3. 8.3.3  Power Up from Input Source
        1. 8.3.3.1 Power Up REGN Regulation
        2. 8.3.3.2 Poor Source Qualification
        3. 8.3.3.3 Input Source Type Detection
          1. 8.3.3.3.1 PSEL Pins Sets Input Current Limit in bq25600C
        4. 8.3.3.4 Input Voltage Limit Threshold Setting (VINDPM Threshold)
        5. 8.3.3.5 Converter Power-Up
      4. 8.3.4  Host Mode and Standalone Power Management
        1. 8.3.4.1 Host Mode and Default Mode in bq25600C
      5. 8.3.5  Power Path Management
      6. 8.3.6  Battery Charging Management
        1. 8.3.6.1 Autonomous Charging Cycle
        2. 8.3.6.2 Battery Charging Profile
        3. 8.3.6.3 Charging Termination
        4. 8.3.6.4 Charging Safety Timer
        5. 8.3.6.5 Narrow VDC Architecture
      7. 8.3.7  Shipping Mode
        1. 8.3.7.1 BATFET Disable Mode (Shipping Mode)
        2. 8.3.7.2 BATFET Enable (Exit Shipping Mode)
      8. 8.3.8  Status Outputs (PG, STAT)
        1. 8.3.8.1 Power Good indicator (PG Pin and PG_STAT Bit)
        2. 8.3.8.2 Charging Status indicator (STAT)
        3. 8.3.8.3 Interrupt to Host (INT)
      9. 8.3.9  Protections
        1. 8.3.9.1 Voltage and Current Monitoring in Converter Operation
          1. 8.3.9.1.1 Voltage and Current Monitoring in Buck Mode
            1. 8.3.9.1.1.1 Input Overvoltage (ACOV)
        2. 8.3.9.2 Thermal Regulation and Thermal Shutdown
          1. 8.3.9.2.1 Thermal Protection in Buck Mode
        3. 8.3.9.3 Battery Protection
          1. 8.3.9.3.1 Battery overvoltage Protection (BATOVP)
      10. 8.3.10 Serial interface
        1. 8.3.10.1 Data Validity
        2. 8.3.10.2 START and STOP Conditions
        3. 8.3.10.3 Byte Format
        4. 8.3.10.4 Acknowledge (ACK) and Not Acknowledge (NACK)
        5. 8.3.10.5 Slave Address and Data Direction Bit
        6. 8.3.10.6 Single Read and Write
        7. 8.3.10.7 Multi-Read and Multi-Write
    4. 8.4 Register Maps
      1. 8.4.1  REG00
      2. 8.4.2  REG01
      3. 8.4.3  REG02
      4. 8.4.4  REG03
      5. 8.4.5  REG04
      6. 8.4.6  REG05
      7. 8.4.7  REG06
      8. 8.4.8  REG07
      9. 8.4.9  REG08
      10. 8.4.10 REG09
      11. 8.4.11 REG0A
      12. 8.4.12 REG0B
  9. 9 Application and Implementation
    1. 9.1 Application information
    2. 9.2 Typical Application Diagram
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Inductor Selection
        2. 9.2.2.2 input Capacitor
        3. 9.2.2.3 Output Capacitor
    3. 9.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Community Resources
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7 Specifications

7.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
Voltage Range (with respect to GND) VAC –2 22 V
VBUS (converter not switching)(2) –2 22 V
BTST, PMID (converter not switching)(2) –0.3 22 V
SW –2 16 V
BTST to SW –0.3 7 V
PSEL –0.3 7 V
BATSNS (converter not switching) –0.3 7 V
REGN, TS, CE, PG, BAT, SYS (converter not switching) –0.3 7 V
SDA, SCL, INT, STAT –0.3 7 V
Output Sink Current STAT, INT 6 mA
Operating junction temperature, TJ –40 150 °C
Storage temperature, Tstg –65 150 °C
(1) Stresses beyond those listed under Absolute maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltage values are with respect to the network ground terminal unless otherwise noted.
(2) VBUS is specified up to 22 V for a maximum of one hour at room temperature

7.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1) ±2000 V
Charged device model (CDM), per JEDEC specification JESD22-C101, all pins(2) ±250
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

7.3 Recommended Operating Conditions

MIN NOM MAX UNIT
VBUS Input voltage 3.9 13.5(1) V
Iin Input current (VBUS) 3.25 A
ISWOP Output current (SW) 3.25 A
VBATOP Battery voltage 4.624 V
IBATOP Fast charging current 3.0 A
IBATOP Discharging current (continuous) 6 A
TA Operating ambient temperature –40 85 °C
(1) The inherent switching noise voltage spikes should not exceed the absolute maximum voltage rating on either the BTST or SW pins. A tight layout minimizes switching noise.

7.4 Thermal information

THERMAL METRIC bq25600C UNIT
YFF (DSBGA)
30 Balls
RθJA Junction-to-ambient thermal resistance 58.8 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 0.2 °C/W
RθJB Junction-to-board thermal resistance 8.3 °C/W
ΨJT Junction-to-top characterization parameter 1.4 °C/W
ΨJB Junction-to-board characterization parameter 8.3 °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance N/A °C/W

7.5 Electrical Characteristics

VVAC_UVLOZ < VVAC < VVAC_OV and VVAC > VBAT + VSLEEP, TJ = –40°C to 125°C and TJ = 25°C for typical values (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
QUIESCENT CURRENTS
IBAT Battery discharge current (BAT, SW, SYS) in buck mode VBAT = 4.5 V, VBUS < VAC-UVLOZ, leakage between BAT and VBUS, TJ< 85°C 5 µA
IBAT Battery discharge current (BAT) in buck mode VBAT = 4.5 V, HIZ Mode and OVPFET_DIS = 1 or No VBUS, I2C disabled, BATFET Disabled. TJ < 85°C 17 33 µA
IBAT Battery discharge current (BAT, SW, SYS) VBAT = 4.5 V, HIZ Mode and OVPFET_DIS = 1 or No VBUS, I2C Disabled, BATFET Enabled. TJ < 85°C 58 85 µA
IVAC_HIZ Input supply current (VAC) in buck mode VVAC = 5 V, HIZ Mode and OVPFET_DIS = 1, No battery 24 37 µA
IVAC_HIZ Input supply current (VAC) in buck mode VVAC = 12 V, HIZ Mode and OVPFET_DIS = 1, No battery 41 61 µA
IVACVBUS_HIZ Input supply current (VAC and VBUS short) in buck mode VVAC = 5 V, HIZ Mode and OVPFET_DIS = 1, No battery 37 50 µA
IVACVBUS_HIZ Input supply current (VAC and VBUS short) in buck mode VVAC = 12 V, HIZ Mode and OVPFET_DIS = 1, No battery 68 90 µA
IVBUS Input supply current (VBUS) in buck mode VVBUS = 12 V, VVBUS > VVBAT, converter not switching 1.5 3 mA
IVBUS Input supply current (VBUS) in buck mode VVBUS > VUVLO, VVBUS > VVBAT, converter switching, VBAT = 3.8V, ISYS = 0A 3 mA
VBUS, VAC AND BAT PIN POWER-UP
VBUS_OP VBUS operating range VVBUS rising 3.9 13.5 V
VVAC_UVLOZ VAC for active I2C, no battery

Sense VAC pin voltage

 VVAC rising 3.3 3.7 V
VVAC_UVLOZ_HYS I2C active hysteresis VAC falling from above VVAC_UVLOZ 300 mV
VVAC_PRESENT VAC to turn on REGN VVAC rising 3.65 3.9 V
VVAC_PRESENT_HYS VAC to turn on REGN hysteresis VVAC falling 500 mV
VSLEEP Sleep mode falling threshold (VVAC–VVBAT ), VBUSMIN_FALL ≤ VBAT ≤ VREG, VAC falling 15 60 131 mV
VSLEEPZ Sleep mode rising threshold (VVAC–VVBAT ), VBUSMIN_FALL ≤ VBAT ≤ VREG, VAC rising 115 220 340 mV
VVAC_OV_RISE VAC 6.5-V Overvoltage rising threshold VAC rising; OVP (REG06[7:6]) = '01' 6.1 6.42 6.75 V
VVAC_OV_RISE VAC 10.5-V Overvoltage rising threshold VAC rising, OVP (REG06[7:6]) = '10' 10.35 11 11.5 V
VVAC_OV_RISE VAC 14-V Overvoltage rising threshold VAC rising, OVP (REG06[7:6]) = '11' 13.5 14.2 15 V
VVAC_OV_HYS VAC 6.5-V Overvoltage hysteresis VAC falling, OVP (REG06[7:6]) = '01' 130 mV
VVAC_OV_HYS VAC 10.5-V Overvoltage hysteresis VAC falling, OVP (REG06[7:6]) = '10' 250 mV
VVAC_OV_HYS VAC 14-V Overvoltage hysteresis VAC falling, OVP (REG06[7:6]) = '11' 300 mV
VBAT_UVLOZ BAT for active I2C, no adapter VBAT rising 2.5 V
VBAT_DPL_FALL Battery Depletion Threshold VBAT falling 2.18 2.62 V
VBAT_DPL_RISE Battery Depletion Threshold VBAT rising 2.34 2.86 V
VBAT_DPL_HYST Battery Depletion rising hysteresis VBAT rising 180 mV
VBUSMIN_FALL Bad adapter detection falling threshold VBUS falling 3.68 3.8 3.9 V
VBUSMIN_HYST Bad adapter detection hysteresis 180 mV
IBADSRC Bad adapter detection current source Sink current from VBUS to GND 30 mA
POWER-PATH
VSYS_MIN System regulation voltage VVBAT < SYS_MIN[2:0] = 101, BATFET Disabled (REG07[5] = 1) 3.5 3.68 V
VSYS System Regulation Voltage ISYS = 0 A, VVBAT > VSYSMIN, VVBAT = 4.400 V, BATFET disabled (REG07[5] = 1) VBAT + 50 mV V
VSYS_MAX Maximum DC system voltage output ISYS = 0 A, , Q4 off, VVBAT≤ 4.400 V, VVBAT > VSYSMIN = 3.5V 4.4 4.45 4.48 V
RON(RBFET) Top reverse blocking MOSFET on-resistance between VBUS and PMID - Q1 -40°C≤ TA ≤ 125°C 35 mΩ
RON(HSFET) Top switching MOSFET on-resistance between PMID and SW - Q2 VREGN = 5 V , -40°C≤ TA ≤ 125°C 55 mΩ
RON(LSFET) Bottom switching MOSFET on-resistance between SW and GND - Q3 VREGN = 5 V , -40°C≤ TA ≤ 125°C 60 mΩ
VFWD BATFET forward voltage in supplement mode 30 mV
RON(BAT-SYS) SYS-BAT MOSFET on-resistance Measured from BAT to SYS, VBAT = 4.2V, TJ = –40 - 125°C 19.5 mΩ
BATTERY CHARGER
VBATREG_RANGE Charge voltage program range 3.856 4.624 V
VBATREG_STEP Charge voltage step 32 mV
VBATREG Charge voltage setting VREG (REG04[7:3]) = 4.208 V (01011), V, –40 ≤ TJ ≤ 85°C 4.187 4.208 4.229 V
VREG (REG04[7:3]) = 4.352 V (01111), V, –40 ≤ TJ ≤ 85°C 4.330 4.352 4.374 V
VBATREG_ACC Charge voltage setting accuracy VBAT = 4.208 V or VBAT = 4.352 V, –40 ≤ TJ ≤ 85°C –0.5% 0.5%
ICHG_REG_RANGE Charge current regulation range 0 3000 mA
ICHG_REG_STEP Charge current regulation step 60 mA
ICHG_REG Charge current regulation setting ICHG = 240 mA, VVBAT = 3.1V or VVBAT = 3.8 V 0.214 0.24 0.26 A
ICHG_REG_ACC Charge current regulation accuracy ICHG = 240 mA, VVBAT = 3.1 V or VVBAT = 3.8 V –11% 9%
ICHG_REG Charge current regulation setting ICHG = 720 mA, VVBAT = 3.1 V or VVBAT = 3.8 V 0.68 0.720 0.76 A
ICHG_REG Charge current regulation accuracy ICHG_REG = 720 mA, VBAT = 3.1 V or VBAT = 3.8 V -6% 6%
ICHG_REG Charge current regulation setting ICHG = 1.38 A, VVBAT = 3.1 V or VVBAT = 3.8 V 1.30 1.380 1.45 A
ICHG_REG_ACC Charge current regulation accuracy ICHG = 720 mA or ICHG = 1.38 A, VVBAT = 3.1 V or VVBAT = 3.8 V –6% 6%
VBATLOWV_FALL Battery LOWV falling threshold ICHG = 240 mA 2.7 2.8 2.9 V
VBATLOWV_RISE Battery LOWV rising threshold Pre-charge to fast charge 3 3.12 3.24 V
IPRECHG Precharge current regulation IPRECHG[3:0] = '0010' = 180 mA 150 170 190 mA
IPRECHG_ACC Precharge current regulation accuracy IPRECHG[3:0] = '0010' = 180 mA –15 5 %
ITERM Termination current regulation ICHG > 780 mA, ITERM[3:0] = '0010' = 180 mA, VVBAT = 4.208 V 145 180 215 mA
ITERM_ACC Termination current regulation accuracy ICHG > 780 mA, , ITERM[3:0] = '0010' = 180 mA, VVBAT = 4.208 V -20% 20%
ITERM Termination current regulation ICHG ≤ 780 mA, , ITERM[3:0] = '0000' = 60 mA, VVBAT = 4.208 V 44 60 75 mA
ITERM_ACC Termination current regulation accuracy ICHG ≤ 780 mA, ,ITERM[3:0] = '0000' = 60 mA, VVBAT = 4.208 V -27% 25%
VSHORT Battery short voltage VVBAT falling 1.85 2 2.15 V
VSHORTZ Battery short voltage VVBAT rising 2.15 2.25 2.35 V
ISHORT Battery short current VVBAT < VSHORTZ 50 90 117 mA
VRECHG Recharge Threshold below VBAT_REG VBAT falling, REG04[0] = 0 90 120 150 mV
VRECHG Recharge Threshold below VBAT_REG VBAT falling, REG04[0] = 1 200 230 265 mV
ISYSLOAD System discharge load current VSYS = 4.2 V 30 mA
INPUT VOLTAGE AND CURRENT REGULATION
VINDPM Input voltage regulation limit VINDPM (REG06[3:0] = 0000) = 3.9 V 3.78 3.95 4.1 V
VINDPM_ACC Input voltage regulation accuracy VINDPM (REG06[3:0] = 0000) = 3.9 V –4.5% 4%
VINDPM Input voltage regulation limit VINDPM (REG06[3:0] = 0110) = 4.4 V 4.268 4.4 4.532 V
VINDPM_ACC Input voltage regulation accuracy VINDPM (REG06[3:0] = 0110) = 4.4 V –3% 3%
VDPM_VBAT Input voltage regulation limit tracking VBAT VINDPM = 3.9V, VDPM_VBAT_TRACK = 300mV, VBAT = 4.0V 4.17 4.3 4.46 V
VDPM_VBAT_ACC Input voltage regulation accuracy tracking VBAT VINDPM = 3.9V, VDPM_VBAT_TRACK = 300mV, VBAT = 4.0V –3% 4%
IINDPM USB input current regulation limit VVBUS = 5 V, current pulled from SW, IINDPM (REG[4:0] = 00100) = 500 mA, –40 ≤ TJ ≤ 85°C 450 500 mA
VVBUS = 5 V, current pulled from SW, IINDPM (REG[4:0] = 01000) = 900 mA, –40 ≤ TJ ≤ 85°C 750 900 mA
VVBUS = 5 V, current pulled from SW, IINDPM (REG[4:0] = 01110) = 1.5 A, –40 ≤ TJ ≤ 85°C 1.28 1.5 A
IIN_START Input current limit during system start-up sequence 200 mA
BAT PIN OVERVOLTAGE PROTECTION
VBATOVP_RISE Battery overvoltage threshold VBAT rising, as percentage of VBAT_REG 103 104 105 %
VBATOVP_Fall_HYS Battery overvoltage falling hysteresis VBAT falling, as percentage of VBAT_REG 2 %
THERMAL REGULATION AND THERMAL SHUTDOWN
TJUNCTION_REG Junction Temperature Regulation Threshold Temperature Increasing, TREG (REG05[1] = 1) = 110℃ 110 °C
TJUNCTION_REG Junction Temperature Regulation Threshold Temperature Increasing, TREG (REG05[1] = 0) = 90℃ 90 °C
TSHUT Thermal Shutdown Rising Temperature Temperature Increasing 160 °C
TSHUT_HYST Thermal Shutdown Hysteresis 30 °C
CHARGE OVERCURRENT COMPARATOR (CYCLE-BY-CYCLE)
IBATFET_OCP System over load threshold 6.0 A
PWM
fSW PWM switching frequency Oscillator frequency, buck mode 1320 1500 1680 kHz
DMAX Maximum PWM duty cycle(1) 97%
REGN LDO
VREGN REGN LDO output voltage VVBUS = 9V, IREGN = 40mA 5.6 6 6.65 V
VREGN REGN LDO output voltage VVBUS = 5V, IREGN = 20mA 4.58 4.7 4.8 V
LOGIC I/O PIN CHARACTERISTICS (CE, PSEL, SCL, SDA,, INT)
VILO Input low threshold CE 0.4 V
VIH Input high threshold CE 1.3 V
IBIAS High-level leakage current CE Pull up rail 1.8 V 1 µA
VILO Input low threshold PSEL 0.4 V
VIH Input high threshold PSEL 1.3 V
IBIAS High-level leakage current PSEL Pull up rail 1.8V 1 µA
LOGIC I/O PIN CHARACTERISTICS (PG, STAT)
VOL Low-level output voltage 0.4 V
(1) Specified by design. Not production tested.

7.6 Timing Requirements

MIN NOM MAX UNIT
VBUS/BAT POWER UP
tACOV VAC OVP reaction time VAC rising above ACOV threshold to turn off Q2 200 ns
tBADSRC Bad adapter detection duration 30 ms
BATTERY CHARGER
tTERM_DGL Deglitch time for charge termination 250 ms
tRECHG_DGL Deglitch time for recharge 250 ms
tSYSOVLD_DGL System over-current deglitch time to turn off Q4 100 µs
tBATOVP Battery over-voltage deglitch time to disable charge 1 µs
tSAFETY Typical Charge Safety Timer Range 8 10 12 hr
tTOP_OFF Typical Top-Off Timer Range TOP_OFF_TIMER[1:0] = 10 (30 min) 24 30 36 min
DIGITAL CLOCK AND WATCHDOG TIMER
tWDT REG05[4]=1 REGN LDO disabled 40 s
fLPDIG Digital Low Power Clock REGN LDO disabled 30 kHz
fDIG Digital Clock REGN LDO enabled 500 kHz
fSCL SCL clock frequency 400 kHz

7.7 Typical Characteristics

bq25600C D501_SLUSCJ4.gif
fSW = 1.5 MHz Inductor DCR = 18 mΩ
VBAT = 3.8 V
Figure 1. Charge Efficiency vs. Charge Current
bq25600C D305_SLUSCK5.gif
Figure 3. SYSMIN Voltage vs. Junction Temperature
bq25600C D307_SLUSCK5.gif
Figure 5. Input Current Limit vs. Junction Temperature
bq25600C D301_SLUSCK5.gif
Figure 7. Charge Current vs. Junction Temperature Under Thermal Regulation
bq25600C D503_SLUSCJ4.gif
Figure 2. Charge Current Accuracy
bq25600C D306_SLUSCK5.gif
Figure 4. BATREG Charge Voltage vs. Junction Temperature
bq25600C D308_SLUSCK5.gif
Figure 6. Charge Current vs. Junction Temperature