SLUSDT5B September   2019  – October 2023 BQ75614-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Description (continued)
  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 Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power Supplies
        1. 8.3.1.1 AVAO_REF and AVDD_REF
        2. 8.3.1.2 LDOIN
        3. 8.3.1.3 AVDD
        4. 8.3.1.4 DVDD
        5. 8.3.1.5 CVDD and NEG5V
        6. 8.3.1.6 TSREF
      2. 8.3.2 Measurement System
        1. 8.3.2.1 Main ADC
          1. 8.3.2.1.1 Cell Voltage Measurements
            1. 8.3.2.1.1.1 Analog Front End
            2. 8.3.2.1.1.2 VC Channel Measurements
            3. 8.3.2.1.1.3 Post-ADC Digital LPF
            4. 8.3.2.1.1.4 SRP and SRN Measurements
          2. 8.3.2.1.2 Temperature Measurements
            1. 8.3.2.1.2.1 DieTemp1 Measurement
            2. 8.3.2.1.2.2 GPIOs and TSREF Measurements
          3. 8.3.2.1.3 Main ADC Operation Control
            1. 8.3.2.1.3.1 Operation Modes and Status
        2. 8.3.2.2 AUX ADC
          1. 8.3.2.2.1 AUX Cell Voltage Measurements
            1. 8.3.2.2.1.1 AUX Analog Front End
            2. 8.3.2.2.1.2 CB and Current Sense Channel Measurements
          2. 8.3.2.2.2 AUX Temperature Measurements
            1. 8.3.2.2.2.1 DieTemp2 Measurement
            2. 8.3.2.2.2.2 AUX GPIO Measurements
          3. 8.3.2.2.3 MISC Measurements
          4. 8.3.2.2.4 AUX ADC Operation Control
        3. 8.3.2.3 Synchronization between MAIN and AUX ADC Measurements
        4. 8.3.2.4 CS ADC
      3. 8.3.3 Cell Balancing
        1. 8.3.3.1 Set Up Cell Balancing
          1. 8.3.3.1.1 Step 1: Determine Balancing Channels
          2. 8.3.3.1.2 Step 2: Select Balancing Control Methods
          3. 8.3.3.1.3 Step 3a: Balancing Thermal Management
          4. 8.3.3.1.4 Step 3b: Option to Stop On Cell Voltage Threshold
          5. 8.3.3.1.5 Step 3c: Option to Stop at Fault
        2. 8.3.3.2 Cell Balancing in SLEEP Mode
        3. 8.3.3.3 Pause and Stop Cell Balancing
          1. 8.3.3.3.1 Cell Balancing Pause
          2. 8.3.3.3.2 Cell Balancing Stop
          3. 8.3.3.3.3 Remaining CB Time
      4. 8.3.4 Integrated Hardware Protectors
        1. 8.3.4.1 OVUV Protectors
          1. 8.3.4.1.1 OVUV Operation Modes
          2. 8.3.4.1.2 OVUV Control and Status
            1. 8.3.4.1.2.1 OVUV Control
            2. 8.3.4.1.2.2 OVUV Status
        2. 8.3.4.2 OTUT Protector
          1. 8.3.4.2.1 OTUT Operation Modes
          2. 8.3.4.2.2 OTUT Control and Status
            1. 8.3.4.2.2.1 OTUT Control
            2. 8.3.4.2.2.2 OTUT Status
      5. 8.3.5 GPIO Configuration
      6. 8.3.6 Communication, OTP, Diagnostic Control
        1. 8.3.6.1 Communication
          1. 8.3.6.1.1 Serial Interface
            1. 8.3.6.1.1.1 UART Physical Layer
              1. 8.3.6.1.1.1.1 UART Transmitter
              2. 8.3.6.1.1.1.2 UART Receiver
              3. 8.3.6.1.1.1.3 COMM CLEAR
            2. 8.3.6.1.1.2 Command and Response Protocol
              1. 8.3.6.1.1.2.1 Transaction Frame Structure
                1. 8.3.6.1.1.2.1.1 Frame Initialization Byte
                2. 8.3.6.1.1.2.1.2 Device Address Byte
                3. 8.3.6.1.1.2.1.3 Register Address Bytes
                4. 8.3.6.1.1.2.1.4 Data Bytes
                5. 8.3.6.1.1.2.1.5 CRC Bytes
                6. 8.3.6.1.1.2.1.6 Calculating Frame CRC Value
                7. 8.3.6.1.1.2.1.7 Verifying Frame CRC
              2. 8.3.6.1.1.2.2 Transaction Frame Examples
                1. 8.3.6.1.1.2.2.1 Single Device Read/Write
          2. 8.3.6.1.2 Communication Timeout
            1. 8.3.6.1.2.1 Short Communication Timeout
            2. 8.3.6.1.2.2 Long Communication Timeout
          3. 8.3.6.1.3 SPI Master
          4. 8.3.6.1.4 SPI Loopback
        2. 8.3.6.2 Fault Handling
          1. 8.3.6.2.1 Fault Status Hierarchy
            1. 8.3.6.2.1.1 Debug Registers
          2. 8.3.6.2.2 Fault Masking and Reset
            1. 8.3.6.2.2.1 Fault Masking
            2. 8.3.6.2.2.2 Fault Reset
          3. 8.3.6.2.3 Fault Signaling
        3. 8.3.6.3 Nonvolatile Memory
          1. 8.3.6.3.1 OTP Page Status
          2. 8.3.6.3.2 OTP Programming
        4. 8.3.6.4 Diagnostic Control/Status
          1. 8.3.6.4.1 Power Supplies Check
            1. 8.3.6.4.1.1 Power Supply Diagnostic Check
            2. 8.3.6.4.1.2 Power Supply BIST
          2. 8.3.6.4.2 Thermal Shutdown and Warning Check
            1. 8.3.6.4.2.1 Thermal Shutdown
            2. 8.3.6.4.2.2 Thermal Warning
          3. 8.3.6.4.3 Oscillators Watchdog
          4. 8.3.6.4.4 OTP Error Check
            1. 8.3.6.4.4.1 OTP CRC Test and Faults
            2. 8.3.6.4.4.2 OTP Margin Read
            3. 8.3.6.4.4.3 Error Check and Correct (ECC) OTP
          5. 8.3.6.4.5 Integrated Hardware Protector Check
            1. 8.3.6.4.5.1 Parity Check
            2. 8.3.6.4.5.2 OVUV and OTUT DAC Check
            3. 8.3.6.4.5.3 OVUV Protector BIST
            4. 8.3.6.4.5.4 OTUT Protector BIST
          6. 8.3.6.4.6 Diagnostic Through ADC Comparison
            1. 8.3.6.4.6.1 Cell Voltage Measurement Check
            2. 8.3.6.4.6.2 Temperature Measurement Check
            3. 8.3.6.4.6.3 Cell Balancing FETs Check
            4. 8.3.6.4.6.4 VC and CB Open Wire Check
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power Modes
        1. 8.4.1.1 SHUTDOWN Mode
          1. 8.4.1.1.1 Exit SHUTDOWN Mode
          2. 8.4.1.1.2 Enter SHUTDOWN Mode
        2. 8.4.1.2 SLEEP Mode
          1. 8.4.1.2.1 Exit SLEEP Mode
          2. 8.4.1.2.2 Enter SLEEP Mode
        3. 8.4.1.3 ACTIVE Mode
          1. 8.4.1.3.1 Exit ACTIVE Mode
          2. 8.4.1.3.2 Enter ACTIVE Mode From SHUTDOWN Mode
          3. 8.4.1.3.3 Enter ACTIVE Mode From SLEEP Mode
      2. 8.4.2 Device Reset
      3. 8.4.3 Ping
        1. 8.4.3.1 Ping
    5. 8.5 Register Maps
      1. 8.5.1 OTP Shadow Register Summary
      2. 8.5.2 Read/Write Register Summary
      3. 8.5.3 Read-Only Register Summary
      4. 8.5.4 Register Field Descriptions
        1. 8.5.4.1  Device Addressing Setup
          1. 8.5.4.1.1 DIR0_ADDR_OTP
          2. 8.5.4.1.2 DIR1_ADDR_OTP
          3. 8.5.4.1.3 CUST_MISC1 through CUST_MISC8
          4. 8.5.4.1.4 DIR0_ADDR
          5. 8.5.4.1.5 DIR1_ADDR
        2. 8.5.4.2  Device ID and Scratch Pad
          1. 8.5.4.2.1 PARTID
          2. 8.5.4.2.2 DEV_REVID
          3. 8.5.4.2.3 DIE_ID1 through DIE_ID9
        3. 8.5.4.3  General Configuration and Control
          1. 8.5.4.3.1  DEV_CONF
          2. 8.5.4.3.2  ACTIVE_CELL
          3. 8.5.4.3.3  PWR_TRANSIT_CONF
          4. 8.5.4.3.4  COMM_TIMEOUT_CONF
          5. 8.5.4.3.5  TX_HOLD_OFF
          6. 8.5.4.3.6  COMM_CTRL
          7. 8.5.4.3.7  CONTROL1
          8. 8.5.4.3.8  CONTROL2
          9. 8.5.4.3.9  CUST_CRC_HI
          10. 8.5.4.3.10 CUST_CRC_LO
          11. 8.5.4.3.11 CUST_CRC_RSLT_HI
          12. 8.5.4.3.12 CUST_CRC_RSLT_LO
        4. 8.5.4.4  Operation Status
          1. 8.5.4.4.1 DIAG_STAT
          2. 8.5.4.4.2 ADC_STAT1
          3. 8.5.4.4.3 ADC_STAT2
          4. 8.5.4.4.4 GPIO_STAT
          5. 8.5.4.4.5 BAL_STAT
          6. 8.5.4.4.6 DEV_STAT
        5. 8.5.4.5  ADC Configuration and Control
          1. 8.5.4.5.1  ADC_CONF1
          2. 8.5.4.5.2  ADC_CONF2
          3. 8.5.4.5.3  MAIN_ADC_CAL1
          4. 8.5.4.5.4  MAIN_ADC_CAL2
          5. 8.5.4.5.5  AUX_ADC_CAL1
          6. 8.5.4.5.6  AUX_ADC_CAL2
          7. 8.5.4.5.7  CS_ADC_CAL1
          8. 8.5.4.5.8  CS_ADC_CAL2
          9. 8.5.4.5.9  ADC_CTRL1
          10. 8.5.4.5.10 ADC_CTRL2
          11. 8.5.4.5.11 ADC_CTRL3
        6. 8.5.4.6  ADC Measurement Results
          1. 8.5.4.6.1  VCELL16_HI/LO
          2. 8.5.4.6.2  VCELL15_HI/LO
          3. 8.5.4.6.3  VCELL14_HI/LO
          4. 8.5.4.6.4  VCELL13_HI/LO
          5. 8.5.4.6.5  VCELL12_HI/LO
          6. 8.5.4.6.6  VCELL11_HI/LO
          7. 8.5.4.6.7  VCELL10_HI/LO
          8. 8.5.4.6.8  VCELL9_HI/LO
          9. 8.5.4.6.9  VCELL8_HI/LO
          10. 8.5.4.6.10 VCELL7_HI/LO
          11. 8.5.4.6.11 VCELL6_HI/LO
          12. 8.5.4.6.12 VCELL5_HI/LO
          13. 8.5.4.6.13 VCELL4_HI/LO
          14. 8.5.4.6.14 VCELL3_HI/LO
          15. 8.5.4.6.15 VCELL2_HI/LO
          16. 8.5.4.6.16 VCELL1_HI/LO
          17. 8.5.4.6.17 MAIN_CURRENT_HI/LO
          18. 8.5.4.6.18 CURRENT_HI/MID/LO
          19. 8.5.4.6.19 TSREF_HI/LO
          20. 8.5.4.6.20 GPIO1_HI/LO
          21. 8.5.4.6.21 GPIO2_HI/LO
          22. 8.5.4.6.22 GPIO3_HI/LO
          23. 8.5.4.6.23 GPIO4_HI/LO
          24. 8.5.4.6.24 GPIO5_HI/LO
          25. 8.5.4.6.25 GPIO6_HI/LO
          26. 8.5.4.6.26 GPIO7_HI/LO
          27. 8.5.4.6.27 GPIO8_HI/LO
          28. 8.5.4.6.28 DIETEMP1_HI/LO
          29. 8.5.4.6.29 DIETEMP2_HI/LO
          30. 8.5.4.6.30 AUX_CELL_HI/LO
          31. 8.5.4.6.31 AUX_GPIO_HI/LO
          32. 8.5.4.6.32 AUX_BAT_HI/LO
          33. 8.5.4.6.33 AUX_REFL_HI/LO
          34. 8.5.4.6.34 AUX_VBG2_HI/LO
          35. 8.5.4.6.35 AUX_AVAO_REF_HI/LO
          36. 8.5.4.6.36 AUX_AVDD_REF_HI/LO
          37. 8.5.4.6.37 AUX_OV_DAC_HI/LO
          38. 8.5.4.6.38 AUX_UV_DAC_HI/LO
          39. 8.5.4.6.39 AUX_OT_OTCB_DAC_HI/LO
          40. 8.5.4.6.40 AUX_UT_DAC_HI/LO
          41. 8.5.4.6.41 AUX_VCBDONE_DAC_HI/LO
          42. 8.5.4.6.42 AUX_VCM_HI/LO
          43. 8.5.4.6.43 REFOVDAC_HI/LO
          44. 8.5.4.6.44 DIAG_MAIN_HI/LO
          45. 8.5.4.6.45 DIAG_AUX_HI/LO
        7. 8.5.4.7  Balancing Configuration, Control and Status
          1. 8.5.4.7.1 CB_CELL16_CTRL through CB_CELL1_CTRL
          2. 8.5.4.7.2 VCB_DONE_THRESH
          3. 8.5.4.7.3 OTCB_THRESH
          4. 8.5.4.7.4 BAL_CTRL1
          5. 8.5.4.7.5 BAL_CTRL2
          6. 8.5.4.7.6 BAL_CTRL3
          7. 8.5.4.7.7 CB_COMPLETE1
          8. 8.5.4.7.8 CB_COMPLETE2
          9. 8.5.4.7.9 BAL_TIME
        8. 8.5.4.8  Protector Configuration and Control
          1. 8.5.4.8.1 OV_THRESH
          2. 8.5.4.8.2 UV_THRESH
          3. 8.5.4.8.3 UV_DISABLE1
          4. 8.5.4.8.4 UV_DISABLE2
          5. 8.5.4.8.5 OTUT_THRESH
          6. 8.5.4.8.6 OVUV_CTRL
          7. 8.5.4.8.7 OTUT_CTRL
        9. 8.5.4.9  GPIO Configuration
          1. 8.5.4.9.1 GPIO_CONF1
          2. 8.5.4.9.2 GPIO_CONF2
          3. 8.5.4.9.3 GPIO_CONF3
          4. 8.5.4.9.4 GPIO_CONF4
        10. 8.5.4.10 SPI Master
          1. 8.5.4.10.1 SPI_CONF
          2. 8.5.4.10.2 SPI_EXE
          3. 8.5.4.10.3 SPI_TX3, SPI_TX2, and SPI_TX1
          4. 8.5.4.10.4 SPI_RX3, SPI_RX2, and SPI_RX1
        11. 8.5.4.11 Diagnostic Control
          1. 8.5.4.11.1  DIAG_OTP_CTRL
          2. 8.5.4.11.2  DIAG_COMM_CTRL
          3. 8.5.4.11.3  DIAG_PWR_CTRL
          4. 8.5.4.11.4  DIAG_CBFET_CTRL1
          5. 8.5.4.11.5  DIAG_CBFET_CTRL2
          6. 8.5.4.11.6  DIAG_COMP_CTRL1
          7. 8.5.4.11.7  DIAG_COMP_CTRL2
          8. 8.5.4.11.8  DIAG_COMP_CTRL3
          9. 8.5.4.11.9  DIAG_COMP_CTRL4
          10. 8.5.4.11.10 DIAG_PROT_CTRL
        12. 8.5.4.12 Fault Configuration and Reset
          1. 8.5.4.12.1 FAULT_MSK1
          2. 8.5.4.12.2 FAULT_MSK2
          3. 8.5.4.12.3 FAULT_RST1
          4. 8.5.4.12.4 FAULT_RST2
        13. 8.5.4.13 Fault Status
          1. 8.5.4.13.1  FAULT_SUMMARY
          2. 8.5.4.13.2  FAULT_COMM1
          3. 8.5.4.13.3  FAULT_OTP
          4. 8.5.4.13.4  FAULT_SYS
          5. 8.5.4.13.5  FAULT_PROT1
          6. 8.5.4.13.6  FAULT_PROT2
          7. 8.5.4.13.7  FAULT_OV1
          8. 8.5.4.13.8  FAULT_OV2
          9. 8.5.4.13.9  FAULT_UV1
          10. 8.5.4.13.10 FAULT_UV2
          11. 8.5.4.13.11 FAULT_OT
          12. 8.5.4.13.12 FAULT_UT
          13. 8.5.4.13.13 FAULT_COMP_GPIO
          14. 8.5.4.13.14 FAULT_COMP_VCCB1
          15. 8.5.4.13.15 FAULT_COMP_VCCB2
          16. 8.5.4.13.16 FAULT_COMP_VCOW1
          17. 8.5.4.13.17 FAULT_COMP_VCOW2
          18. 8.5.4.13.18 FAULT_COMP_CBOW1
          19. 8.5.4.13.19 FAULT_COMP_CBOW2
          20. 8.5.4.13.20 FAULT_COMP_CBFET1
          21. 8.5.4.13.21 FAULT_COMP_CBFET2
          22. 8.5.4.13.22 FAULT_COMP_MISC
          23. 8.5.4.13.23 FAULT_PWR1
          24. 8.5.4.13.24 FAULT_PWR2
          25. 8.5.4.13.25 FAULT_PWR3
        14. 8.5.4.14 Debug Control and Status
          1. 8.5.4.14.1 DEBUG_UART_RC
          2. 8.5.4.14.2 DEBUG_UART_RR_TR
          3. 8.5.4.14.3 DEBUG_UART_DISCARD
          4. 8.5.4.14.4 DEBUG_UART_VALID_HI/LO
          5. 8.5.4.14.5 DEBUG_OTP_SEC_BLK
          6. 8.5.4.14.6 DEBUG_OTP_DED_BLK
        15. 8.5.4.15 OTP Programming Control and Status
          1. 8.5.4.15.1 OTP_PROG_UNLOCK1A through OTP_PROG_UNLOCK1D
          2. 8.5.4.15.2 OTP_PROG_UNLOCK2A through OTP_PROG_UNLOCK2D
          3. 8.5.4.15.3 OTP_PROG_CTRL
          4. 8.5.4.15.4 OTP_ECC_TEST
          5. 8.5.4.15.5 OTP_ECC_DATAIN1 through OTP_ECC_DATAIN9
          6. 8.5.4.15.6 OTP_ECC_DATAOUT1 through OTP_ECC_DATAOUT9
          7. 8.5.4.15.7 OTP_PROG_STAT
          8. 8.5.4.15.8 OTP_CUST1_STAT
          9. 8.5.4.15.9 OTP_CUST2_STAT
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Application Circuit
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Cell Sensing and Balancing Inputs
          2. 9.2.1.2.2 Synchronize Voltage and Current Measurements
          3. 9.2.1.2.3 BAT and External NPN
          4. 9.2.1.2.4 Power Supplies, Reference Input
          5. 9.2.1.2.5 GPIO For Thermistor Inputs
          6. 9.2.1.2.6 Internal Balancing Current
          7. 9.2.1.2.7 UART, NFAULT
          8. 9.2.1.2.8 Current Sense Input
        3. 9.2.1.3 Application Curve
  11. 10Power Supply Recommendations
  12. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Ground Planes
      2. 11.1.2 Bypass Capacitors for Power Supplies and Reference
      3. 11.1.3 Cell Voltage Sensing
    2. 11.2 Layout Example
  13. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  14. 13Mechanical, Packaging, and Orderable Information

Package Options

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

6 Pin Configuration and Functions

GUID-20210609-CA0I-HM1H-JMXL-KKMSMVFMCX2D-low.gifFigure 6-1 PAP Package 64-Pin HTQFP Top View
Table 6-1 Pin Functions
PINTYPE(1)DESCRIPTION
NAMENo.
BAT1PPower supply input and top of module measurement input. Connect to the top cell of the battery module.
NPNB48PConnect to the base of an external NPN transistor.
LDOIN47P6-V preregulated analog power supply input/sense pin. Connect to the emitter of the external NPN transistor and connect a 0.1-µF decoupling capacitor to CVSS.
AVDD38P5-V regulated output. AVDD supplies the internal analog circuits. Bypass AVDD with a capacitor to AVSS.
AVSS39GNDAnalog ground. Ground connection for internal analog circuits. Connect DVSS, CVSS, REFHM, and AVSS externally. All ground pins must not be left unconnected.
NEG5V44PNegative 5-V charge pump used for Main ADC. Connect with a capacitor to CVSS.
DVDD49P1.8-V regulated output. DVDD supplies the internal digital circuits. Bypass DVDD with a capacitor to DVSS.
DVSS50GNDDigital ground. Ground connection for internal digital logics. Connect DVSS, CVSS, REFHM, and AVSS externally. All ground pins must be connected to ground.
CVDD45P5-V I/Os power supply. CVDD supplies the I/O pins. This power supply also supports an additional 10-mA external load in ACTIVE and SLEEP.
CVSS46GNDGround connection. Connect DVSS, CVSS, REFHM, and AVSS externally. All ground pins must be connected to ground.
TSREF51P5-V bias voltage for NTC thermistor. Connect TSREF to the top of the NTC resistor divider network to the GPIOs when they are configured for NTC temperature monitoring. Bypass TSREF with a capacitor to CVSS.
REFHP37PPrecision reference output pin. Bypass with a capacitor to REFHM.
REFHM36GNDPrecision reference ground. Ground connection for the internal precision reference. Connect DVSS, CVSS, REFHM, and AVSS externally. All ground pins must be connected to ground.
SW2 / VC163ICell voltage sense input or fuse/relay sense input. Connect to the positive terminal of cell 16 (if cell is connected) or connect for fuse/relay sensing. Connect a differential RC filter to VC15.
SW1 / VC155ICell voltage sense input or fuse/relay sense input. Connect to the positive terminal of cell 15 (if cell is connected) or connect for fuse/relay sensing. Connect a differential RC filter to VC14 when this pin is used.
VC147ICell voltage sense input. Connect to the positive terminal of cell 14. Connect a differential RC filter to VC13.
VC139ICell voltage sense input. Connect to the positive terminal of cell 13. Connect a differential RC filter to VC12.
VC1211ICell voltage sense input. Connect to the positive terminal of cell 12. Connect a differential RC filter to VC11.
VC1113ICell voltage sense input. Connect to the positive terminal of cell 11. Connect a differential RC filter to VC10.
VC1015ICell voltage sense input. Connect to the positive terminal of cell 10. Connect a differential RC filter to VC9.
VC917ICell voltage sense input. Connect to the positive terminal of cell 9. Connect a differential RC filter to VC8.
VC819ICell voltage sense input. Connect to the positive terminal of cell 8. Connect a differential RC filter to VC7.
VC721ICell voltage sense input. Connect to the positive terminal of cell 7. Connect a differential RC filter to VC6.
VC623ICell voltage sense input. Connect to the positive terminal of cell 6. Connect a differential RC filter to VC5.
VC525ICell voltage sense input. Connect to the positive terminal of cell 5. Connect a differential RC filter to VC4.
VC427ICell voltage sense input. Connect to the positive terminal of cell 4. Connect a differential RC filter to VC3.
VC329ICell voltage sense input. Connect to the positive terminal of cell 3. Connect a differential RC filter to VC2.
VC231ICell voltage sense input. Connect to the positive terminal of cell 2. Connect a differential RC filter to VC1.
VC133ICell voltage sense input. Connect to the positive terminal of cell 1. Connect a differential RC filter to VC0.
VC035ICell voltage sense input. Connect to the negative terminal of cell 1. Connect a differential RC filter to AVSS.
NC2I/ONo connection. Leave pin floating.
NC4I/ONo connection. Leave pin floating.
CB146I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 14 with a differential RC filter to CB13. The filter resistor also sets the internal balance current.
CB138I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 13 with a differential RC filter to CB12. The filter resistor also sets the internal balance current.
CB1210I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 12 with a differential RC filter to CB11. The filter resistor also sets the internal balance current.
CB1112I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 11 with a differential RC filter to CB10. The filter resistor also sets the internal balance current.
CB1014I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 10 with a differential RC filter to CB9. The filter resistor also sets the internal balance current.
CB916I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 9 with a differential RC filter to CB8. The filter resistor also sets the internal balance current.
CB818I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 8 with a differential RC filter to CB7. The filter resistor also sets the internal balance current.
CB720I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 7 with a differential RC filter to CB6. The filter resistor also sets the internal balance current.
CB622I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 6 with a differential RC filter to CB5. The filter resistor also sets the internal balance current.
CB524I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 5 with a differential RC filter to CB4. The filter resistor also sets the internal balance current.
CB426I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 4 with a differential RC filter to CB3. The filter resistor also sets the internal balance current.
CB328I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 3 with a differential RC filter to CB2. The filter resistor also sets the internal balance current.
CB230I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 2 with a differential RC filter to CB1. The filter resistor also sets the internal balance current.
CB132I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect this pin to the positive terminal of cell 1 with a differential RC filter to CB0. The filter resistor also sets the internal balance current.
CB034I/OCell balance connection. This pin is connected to the internal cell balancing FET. Connect to the negative terminal of cell 1 with differential RC filter to AVSS. The filter resistor also sets the internal balance current.
SRP64ICurrent sense resistor connection. With SRP and SRN connected to each end of a current sense resistor.
SRN63ICurrent sense resistor connection. With SRP and SRN connected to each end of a current sense resistor.
RX52IUART receiver input. Pull up to CVDD with an external resistor and connect the device RX to the TX output of the host MCU. If unused, connect RX to CVDD.
TX53OUART transmitter output. Connect device TX to RX input of the host MCU and will be pulled up from the host side. If unused, leave it floating.
NC40, 41, 42, 43I/ONo connection. Leave pin floating.
NFAULT62OFault indication output. Active low. Pull up NFAULT to CVDD with a pullup resistor and connect NFAULT to host MCU GPIO. If unused, leave it unconnected.
GPIO161I/OGeneral purpose input/output, configuration options are:
  • For external NTC thermistor connection, connect NTC thermistor to the pin and pull up to TSREF. Used as input to ADC and OT and UT hardware comparators.
  • For external DC voltage measurement, configured as input to ADC.
  • Generic digital input/output.
  • Use as I/O for SPI master.
GPIO260I/O
GPIO359I/O
GPIO458I/O
GPIO557I/O
GPIO656I/O
GPIO755I/O
GPIO854I/O
(1) GND = Ground, I = Input, I/O = Input/Output, O = Output, P = Power