ZHCSDK5B September   2014  – January 2017 TPS68470

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 修订历史记录
  5. 5 说明 （续）
  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 - Data Transmission
    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-Up Sequence and Modes
      2. 8.3.2  Clock Generation
        1. 8.3.2.1 Crystal Oscillator
        2. 8.3.2.2 Phase Locked Loop (PLL)
        3. 8.3.2.3 Spread Spectrum Modulator
        4. 8.3.2.4 Clock Drivers
      3. 8.3.3  GPIO and Interrupt Generation
        1. 8.3.3.1 I2C Daisy Chain
        2. 8.3.3.2 Programmable Interrupt Trigger
        3. 8.3.3.3 Internal Interrupt Signals
      4. 8.3.4  Sensor GPO Signals
      5. 8.3.5  Power-Up and Software Reset
      6. 8.3.6  Core Buck
        1. 8.3.6.1 Buck Converter Switching Frequency
        2. 8.3.6.2 Buck Converter Internal Current Limit and Short Detection
      7. 8.3.7  Low Dropout Voltage Regulators (LDOs)
        1. 8.3.7.1 LDO Output Capacitor Requirements
        2. 8.3.7.2 LDO Internal Current Limit and Short Detection
        3. 8.3.7.3 Dropout Voltage
      8. 8.3.8  WLED Boost Converter and WLED Drivers
        1. 8.3.8.1 WLED Driver Operation
        2. 8.3.8.2 WLED Modes
          1. 8.3.8.2.1 FLASH: MODE[1:0] = '00''
          2. 8.3.8.2.2 TORCH: MODE[1:0] = '01''
          3. 8.3.8.2.3 RED-EYE REDUCTION: MODE[1:0] = '10''
          4. 8.3.8.2.4 FOCUS ASSIST: MODE[1:0] = '11''
        3. 8.3.8.3 WLED Trigger Options
          1. 8.3.8.3.1 Level-Sensitive Flash Trigger (TRIG = 0)
            1. 8.3.8.3.1.1 Edge Trigger Flash (TRIG = 1)
        4. 8.3.8.4 Blanking (Tx-Mask) for Instantaneous Flash-Current Reduction
        5. 8.3.8.5 Voltage Mode
      9. 8.3.9  Indicator LED Operation
        1. 8.3.9.1 Retriggerable Pulse Extender
      10. 8.3.10 Safe Operation and Protection Features
        1. 8.3.10.1 LED Temperature Monitoring (Finger-Burn Protection)
        2. 8.3.10.2 LED Failure Modes (Open/Short Detection) and Overvoltage Protection
        3. 8.3.10.3 WLED Open Circuit Detection/Over Voltage Protection
        4. 8.3.10.4 LED Current Ramp-Up/Down
        5. 8.3.10.5 Short Circuit Protection
        6. 8.3.10.6 Hot Die Detection and Thermal Shutdown
      11. 8.3.11 WLED Boost Inductor Selection
      12. 8.3.12 I2C Bus Operation
        1. 8.3.12.1 Single Write to a Defined Location
        2. 8.3.12.2 Single Read From a Defined Location and Current Location
        3. 8.3.12.3 Sequential Read and Write
      13. 8.3.13 Subaddress Definition
        1. 8.3.13.1 I2C Device Address, Start and Stop Condition
    4. 8.4 Device Functional Modes
      1. 8.4.1 Operation with a Single Input Power Rail
      2. 8.4.2 Sequencing the Input Power Rails
    5. 8.5 Register Map
      1. 8.5.1  GSTAT Register (address = 0x01) [reset = 00000000]
      2. 8.5.2  VRSTAT Register (address = 0x02) [reset = -]
      3. 8.5.3  VRSHORT Register (address = 0x03) [reset = 00000000]
      4. 8.5.4  INTMASK Register (address = 0x04) [reset = 00000000]
      5. 8.5.5  VCOSPEED Register (address = 0x05) [reset = 00000000]
      6. 8.5.6  POSTDIV2 Register (address = 0x06) [reset = 00000000]
      7. 8.5.7  BOOSTDIV Register (address = 0x07) [reset = 00000000]
      8. 8.5.8  BUCKDIV Register (address = 0x08) [reset = 00000000]
      9. 8.5.9  PLLSWR Register (address = 0x09) [reset = 00000000]
      10. 8.5.10 XTALDIV Register (address = 0x0A) [reset = 00000000]
      11. 8.5.11 PLLDIV Register (address = 0x0B) [reset = 00000000]
      12. 8.5.12 POSTDIV Register (address = 0x0C) [reset = 00000000]
      13. 8.5.13 PLLCTL Register (address = 0x0D) [reset = 10000000]
      14. 8.5.14 PLLCTL2 Register (address = 0x0E) [reset = 00000000]
      15. 8.5.15 CLKCFG1 Register (address = 0x0F) [reset = 00000000]
      16. 8.5.16 CLKCFG2 Register (address = 0x10) [reset = 00000000]
      17. 8.5.17 GPCTL0A Register (address = 0x14) [reset = 00000001]
      18. 8.5.18 GPCTL0B Register (address = 0x15) [reset = 00001000]
      19. 8.5.19 GPCTL1A Register (address = 0x16) [reset = 00000001]
      20. 8.5.20 GPCTL1B Register (address = 0x17) [reset = 00001000]
      21. 8.5.21 GPCTL2A Register (address = 0x18) [reset = 00000001]
      22. 8.5.22 GPCTL2B Register (address = 0x19) [reset = 00001000]
      23. 8.5.23 GPCTL3A Register (address = 0x1A) [reset = 00000001]
      24. 8.5.24 GPCTL3B Register (address = 0x1B) [reset = 00001000]
      25. 8.5.25 GPCTL4A Register (address = 0x1C) [reset = 00000001]
      26. 8.5.26 GPCTL4B Register (address = 0x1D) [reset = 00001000]
      27. 8.5.27 GPCTL5A Register (address = 0x1E) [reset = 00000001]
      28. 8.5.28 GPCTL5B Register (address = 0x1F) [reset = 00001000]
      29. 8.5.29 GPCTL6A Register (address = 0x20) [reset = 00000001]
      30. 8.5.30 GPCTL6B Register (address = 0x21) [reset = 00001000]
      31. 8.5.31 SGPO Register (address = 0x22) [reset = 00000000]
      32. 8.5.32 PITCTL Register (address = 0x23) [reset = 00000000]
      33. 8.5.33 WAKECFG Register (address = 0x24) [reset = 00000000]
      34. 8.5.34 IOWAKESTAT Register (address = 0x25) [reset = 00000000]
      35. 8.5.35 GPDI Register (address = 0x26) [reset = 00000000]
      36. 8.5.36 GPDO Register (address = 0x27) [reset = 00000000]
      37. 8.5.37 ILEDCTL Register (address = 0x28) [reset = 00000000]
      38. 8.5.38 WLEDSTAT Register (address = 0x29) [reset = 00000000]
      39. 8.5.39 VWLEDILIM Register (address = 0x2A) [reset = 00001010]
      40. 8.5.40 VWLEDVAL Register (address = 0x2B) [reset = 00000000]
      41. 8.5.41 WLEDMAXRER Register (address = 0x2C) [reset = 00000000]
      42. 8.5.42 WLEDMAXT Register (address = 0x2D) [reset = 00000000]
      43. 8.5.43 WLEDMAXAF Register (address = 0x2E) [reset = 00000000]
      44. 8.5.44 WLEDMAXF Register (address = 0x2F) [reset = 00000000]
      45. 8.5.45 WLEDTO Register (address = 0x30) [reset = 00000000]
      46. 8.5.46 VWLEDCTL Register (address = 0x31) [reset = 00111000]
      47. 8.5.47 WLEDTIMER_MSB Register (address = 0x32) [reset = 00000000]
      48. 8.5.48 WLEDTIMER_LSB Register (address = 0x33) [reset = 00000000]
      49. 8.5.49 WLEDC1 Register (address = 0x34) [reset = 00000000]
      50. 8.5.50 WLEDC2 Register (address = 0x35) [reset = 00000000]
      51. 8.5.51 WLEDCTL Register (address = 0x36) [reset = 00000000]
      52. 8.5.52 VCMVAL Register (address = 0x3C) [reset = 00000000]
      53. 8.5.53 VAUX1VAL Register (address = 0x3D) [reset = 00000000]
      54. 8.5.54 VAUX2VAL Register (address = 0x3E) [reset = 00000000]
      55. 8.5.55 VIOVAL Register (address = 0x3F) [reset = 00110100]
      56. 8.5.56 VSIOVAL Register (address = 0x40) [reset = 00110100]
      57. 8.5.57 VAVAL Register (address = 0x41) [reset = 00000000]
      58. 8.5.58 VDVAL Register (address = 0x42) [reset = 00000000]
      59. 8.5.59 S_I2C_CTL Register (address = 0x43) [reset = 00000000]
      60. 8.5.60 VCMCTL Register (address = 0x44) [reset = 00000000]
      61. 8.5.61 VAUX1CTL Register (address = 0x45) [reset = 00000000]
      62. 8.5.62 VAUX2CTL Register (address = 0x46) [reset = 00000000]
      63. 8.5.63 VACTL Register (address = 0x47) [reset = 00000000]
      64. 8.5.64 VDCTL Register (address = 0x48) [reset = 00000100]
      65. 8.5.65 RESET Register (address = 0x50) [reset = N/A]
      66. 8.5.66 REVID Register (address = 0xFF) [reset = 00100000]
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Core Buck Design
          1. 9.2.2.1.1 Inductor Selection
          2. 9.2.2.1.2 Output Capacitor
          3. 9.2.2.1.3 Input Capacitor
        2. 9.2.2.2 WLED Boost Design
          1. 9.2.2.2.1 Inductor Selection
          2. 9.2.2.2.2 Output Capacitor
          3. 9.2.2.2.3 Input Capacitor
        3. 9.2.2.3 LDOs Capacitor Selection
        4. 9.2.2.4 LED Selection
        5. 9.2.2.5 Recommended External Components
      3. 9.2.3 Application Performance Graphs
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 接收文档更新通知
    3. 12.3 社区资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 Glossary
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6 Pin Configuration and Functions

56-Pin DSBGA
YFF Package
(Top View)
TPS68470 Pinout_Drawing.gif

Pin Functions

PIN I/O DESCRIPTION
NAME NUMBER
I2C_ICA G4 I TPS68470 I2C Address select pin A
I2C_ICB F4 I TPS68470 I2C Address select pin B
SDA F5 I/O I2C data
SCL G5 I I2C clk
GPIO0 D3 I/O GPIO
GPIO1 D6 I/O GPIO (sensor SDA in daisy chain mode)
GPIO2 F6 I/O GPIO (sensor SCL in daisy chain mode)
GPIO3 C3 I/O GPIO or External Reference Clock when XTAL is disabled
GPIO4 C4 I/O GPIO
GPIO5 C6 I/O GPIO
GPIO6 E6 I/O GPIO
S_RESETN E4 O Sensor reset
S_ENABLE E5 O Sensor power enable / power down
S_IDLE D4 O Sensor power down mode
S_VSYNC C1 I Sensor activity indication enable
RESET_IN H2 I Platform reset input (active low)
S_STROBE D2 I White LED trigger input
OSC_IN B1 I XTAL input
OSC_OUT A1 O XTAL output
HCLK_A D5 O Sensor Clock
HCLK_B C5 O Alternate Sensor Clock
PLL_COMP1 A3 O PLL compensation
PLL_COMP2 A4 O SS PLL compensation
VCM_OUT H4 O VCM LDO output
ANA_OUT B7 O Analog LDO output
IO_OUT E7 O IO LDO output
S_IO_OUT D7 O Sensor IO LDO output
IO_GND F7 - IO and digital GND
AUX1_OUT C7 O Auxiliary LDO1 output
AUX2_OUT A6 O Auxiliary LDO2 output
CORE_SW G7 O Core Buck SW
CORE_FB H6 I Core Buck feedback
CORE_GND H7 - Core Buck GND
WLED_SW F3, F2, F1 O White LED Boost SW
WLED_OUT E3, E2, E1 O White LED Boost output, connect 2 x 10uF capacitors to this output
WLED_GND G3, G2, G1 - White LED Boost GND
WLED_NTC C2 I White LED Temperature sensor feedback
DRV_WLED1 H1 I White LED 1 current sink (the source of current is from WLED_OUT)
DRV_WLED2 H3 I White LED 2 current sink (the source of current is from WLED_OUT)
ILEDA B2 O Indicator LED A driver
ILEDB B3 O Indicator LED B driver
PLL_VDD A5 O PLL internal regulator (connect a 1µF capacitor to this pin)
PLL_GND B4 - PLL GND
3V3_VDD H5, G6, D1, B6, A7 I 3.3V input
* H5 - LDO_VCM
* G6 - CORE Buck Converter
* D1 - WLED Boost Converter
* B6 - LDO_PLL
* A7 - LDO_AUX1, LDO_ANA, LDO_IO, LDO_SIO
3V3_SUS B5 I 3.3V Auxiliary sustaining rail input (LDO_AUX2)
GND A2 - Ground