SWCS095L August   2013  – February 2019 TPS659038-Q1 , TPS659039-Q1

PRODUCTION DATA.  

  1. 1 Device Summary
    1. 1.1 Features
    2. 1.2 Applications
    3. 1.3 Description
    4. 1.4 Simplified Block Diagram
  2. 2 Revision History
  3. 3 Device Comparison
  4. 4 Pin Configuration and Functions
    1. 4.1 Pin Functions
      1.      Pin Functions
    2. 4.2 Device Ball Mapping – 13 × 13 nFBGA, 169 Balls, 0,8-mm Pitch
    3. 4.3 Signal Descriptions
  5. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics: Latch Up Rating
    6. 5.6  Electrical Characteristics: LDO Regulator
    7. 5.7  Electrical Characteristics: Dual-Phase (SMPS12 and SMPS45) and Triple-Phase (SMPS123 and SMPS457) Regulators
    8. 5.8  Electrical Characteristics: Stand-Alone Regulators (SMPS3, SMPS6, SMPS7, SMPS8, and SMPS9)
    9. 5.9  Electrical Characteristics: Reference Generator (Bandgap)
    10. 5.10 Electrical Characteristics: 16-MHz Crystal Oscillator, 32-kHz RC Oscillator, and Output Buffers
    11. 5.11 Electrical Characteristics: DC-DC Clock Sync
    12. 5.12 Electrical Characteristics: 12-Bit Sigma-Delta ADC
    13. 5.13 Electrical Characteristics: Thermal Monitoring and Shutdown
    14. 5.14 Electrical Characteristics: System Control Thresholds
    15. 5.15 Electrical Characteristics: Current Consumption
    16. 5.16 Electrical Characteristics: Digital Input Signal Parameters
    17. 5.17 Electrical Characteristics: Digital Output Signal Parameters
    18. 5.18 Electrical Characteristics: I/O Pullup and Pulldown Resistance
    19. 5.19 I2C Interface Timing Requirements
    20. 5.20 SPI Timing Requirements
    21. 5.21 Typical Characteristics
  6. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagrams
    3. 6.3 Feature Description
      1. 6.3.1  Power Management
      2. 6.3.2  Power Resources (Step-Down and Step-Up SMPS Regulators, LDOs)
        1. 6.3.2.1 Step-Down Regulators
          1. 6.3.2.1.1 Sync Clock Functionality
          2. 6.3.2.1.2 Output Voltage and Mode Selection
          3. 6.3.2.1.3 Current Monitoring and Short Circuit Detection
          4. 6.3.2.1.4 POWERGOOD
          5. 6.3.2.1.5 DVS-Capable Regulators
          6. 6.3.2.1.6 Non DVS-Capable Regulators
          7. 6.3.2.1.7 Step-Down Converters SMPS12 and SMPS123
            1.         a. Dual-Phase SMPS and Stand-Alone SMPS
            2.         b. Triple Phase SMPS
          8. 6.3.2.1.8 Step-Down Converter SMPS45 and SMPS457
          9. 6.3.2.1.9 Step-Down Converters SMPS3, SMPS6, SMPS7, SMPS8, and SMPS9
        2. 6.3.2.2 LDOs – Low Dropout Regulators
          1. 6.3.2.2.1 LDOVANA
          2. 6.3.2.2.2 LDOVRTC
          3. 6.3.2.2.3 LDO Bypass (LDO9)
          4. 6.3.2.2.4 LDOUSB
          5. 6.3.2.2.5 Other LDOs
      3. 6.3.3  Long-Press Key Detection
      4. 6.3.4  RTC
        1. 6.3.4.1 General Description
        2. 6.3.4.2 Time Calendar Registers
          1. 6.3.4.2.1 TC Registers Read Access
          2. 6.3.4.2.2 TC Registers Write Access
        3. 6.3.4.3 RTC Alarm
        4. 6.3.4.4 RTC Interrupts
        5. 6.3.4.5 RTC 32-kHz Oscillator Drift Compensation
      5. 6.3.5  GPADC – 12-Bit Sigma-Delta ADC
        1. 6.3.5.1 Asynchronous Conversion Request (SW)
        2. 6.3.5.2 Periodic Conversion Request (AUTO)
        3. 6.3.5.3 Calibration
      6. 6.3.6  General-Purpose I/Os (GPIO Terminals)
        1. 6.3.6.1 REGEN Output
      7. 6.3.7  Thermal Monitoring
        1. 6.3.7.1 Hot-Die Function (HD)
        2. 6.3.7.2 Thermal Shutdown (TS)
        3. 6.3.7.3 Temperature Monitoring With External NTC Resistor or Diode
      8. 6.3.8  Interrupts
      9. 6.3.9  Control Interfaces
        1. 6.3.9.1 I2C Interfaces
          1. 6.3.9.1.1 I2C Implementation
          2. 6.3.9.1.2 F/S Mode Protocol
          3. 6.3.9.1.3 HS Mode Protocol
        2. 6.3.9.2 SPI Interface
          1. 6.3.9.2.1 SPI Modes
          2. 6.3.9.2.2 SPI Protocol
      10. 6.3.10 Device Identification
    4. 6.4 Device Functional Modes
      1. 6.4.1  Embedded Power Controller
      2. 6.4.2  State Transition Requests
        1. 6.4.2.1 ON Requests
        2. 6.4.2.2 OFF Requests
        3. 6.4.2.3 SLEEP and WAKE Requests
      3. 6.4.3  Power Sequences
      4. 6.4.4  Start Up Timing and RESET_OUT Generation
      5. 6.4.5  Power On Acknowledge
        1. 6.4.5.1 POWERHOLD Mode
        2. 6.4.5.2 AUTODEVON Mode
      6. 6.4.6  BOOT Configuration
        1. 6.4.6.1 Boot Terminal Selection
      7. 6.4.7  Reset Levels
      8. 6.4.8  Warm Reset
      9. 6.4.9  RESET_IN
      10. 6.4.10 Watchdog Timer (WDT)
      11. 6.4.11 System Voltage Monitoring
        1. 6.4.11.1 Generating a POR
  7. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1  Recommended External Components
        2. 7.2.2.2  SMPS Input Capacitors
        3. 7.2.2.3  SMPS Output Capacitors
        4. 7.2.2.4  SMPS Inductors
        5. 7.2.2.5  LDO Input Capacitors
        6. 7.2.2.6  LDO Output Capacitors
        7. 7.2.2.7  VCC1
          1. 7.2.2.7.1 Meeting the Power Down Sequence
          2. 7.2.2.7.2 Maintaining Sufficient Input Voltage
        8. 7.2.2.8  VIO_IN
        9. 7.2.2.9  16-MHz Crystal
        10. 7.2.2.10 GPADC
      3. 7.2.3 Application Curves
  8. 8 Power Supply Recommendations
  9. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
      2. 10.1.2 Device Nomenclature
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 Related Links
    4. 10.4 Receiving Notification of Documentation Updates
    5. 10.5 Community Resources
    6. 10.6 Trademarks
    7. 10.7 Electrostatic Discharge Caution
    8. 10.8 Glossary
  11. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Package Materials Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • ZWS|169
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.3.4.5 RTC 32-kHz Oscillator Drift Compensation

The RTC_COMP_MSB_REG and RTC_COMP_LSB_REG registers are used to compensate for any inaccuracy of the 32-kHz clock output from the 16.384MHz crystal oscillator. To compensate for any inaccuracy, software must perform an external calibration of the oscillator frequency, calculate the drift compensation needed versus one time hour period, and load the compensation registers with the drift compensation value.

The compensation mechanism is enabled by the AUTO_COMP_EN bit in the RTC_CTRL_REG register. The process happens after the first second of each hour. The time between second 1 to second 2 (T_ADJ) is adjusted based on the settings of the two RTC_COMP_MSB_REG and RTC_COMP_LSB_REG registers. These two registers form a 16-bit, 2s complement value COMP_REG (from –32767 to 32767) that is subtracted from the 32-kHz counter as per the following formula to adjust the length of T_ADJ: TPS659038-Q1 TPS659039-Q1 form_1.gif. It is therefore possible to adjust the compensation with a 1/32768-second time unit accuracy per hour and up to 1 second per hour.

Software must ensure that these registers are updated before each compensation process (there is no hardware protection). For example, software can load the compensation value into these registers after each hour event, during second 0 to second 1, just before the compensation period, happening from second 1 to second 2.

It is also possible to preload the internal 32-kHz counter with the content of the RTC_COMP_MSB_REG and RTC_COMP_LSB_REG registers when setting the SET_32_COUNTER bit in the RTC_CTRL_REG register. This must be done when the RTC is stopped.

Figure 6-8 shows the RTC compensation scheduling.

TPS659038-Q1 TPS659039-Q1 RTC_Compensation_Scheduling_SWCS095.gifFigure 6-8 RTC Compensation Scheduling