SLVSF29A October   2019  – March 2020 TPS8804

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Application
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. Table 1. Absolute Maximum Ratings
    2. 6.1      ESD Ratings
    3. Table 2. Recommended Operating Conditions
    4. 6.2      Thermal Information
    5. Table 3. Electrical Characteristics
  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 System Power-up
      2. 8.3.2 LDO Regulators
        1. 8.3.2.1 Power LDO Regulator
        2. 8.3.2.2 Internal LDO Regulator
        3. 8.3.2.3 Microcontroller LDO Regulator
      3. 8.3.3 Photo Chamber AFE
        1. 8.3.3.1 Photo Input Amplifier
        2. 8.3.3.2 Photo Gain Amplifier
      4. 8.3.4 LED Driver
        1. 8.3.4.1 LED Current Sink
        2. 8.3.4.2 LED Voltage Supply
      5. 8.3.5 Carbon Monoxide Sensor AFE
        1. 8.3.5.1 CO Transimpedance Amplifier
        2. 8.3.5.2 CO Connectivity Test
      6. 8.3.6 SLC Interface Transmitter and Receiver
        1. 8.3.6.1 SLC Transmitter
        2. 8.3.6.2 SLC Receiver
      7. 8.3.7 AMUX
      8. 8.3.8 Analog Bias Block and 8 MHz Oscillator
      9. 8.3.9 Interrupt Signal Alerts
    4. 8.4 Device Functional Modes
      1. 8.4.1 Fault States
        1. 8.4.1.1 MCU LDO Fault
        2. 8.4.1.2 Over-Temperature Fault
    5. 8.5 Programming
    6. 8.6 Register Maps
      1. 8.6.1  REVID Register (Offset = 0h) [reset = 0h]
        1. Table 8. REVID Register Field Descriptions
      2. 8.6.2  STATUS1 Register (Offset = 1h) [reset = 0h]
        1. Table 9. STATUS1 Register Field Descriptions
      3. 8.6.3  STATUS2 Register (Offset = 2h) [reset = 0h]
        1. Table 10. STATUS2 Register Field Descriptions
      4. 8.6.4  MASK Register (Offset = 3h) [reset = 0h]
        1. Table 11. MASK Register Field Descriptions
      5. 8.6.5  CONFIG1 Register (Offset = 4h) [reset = 20h]
        1. Table 12. CONFIG1 Register Field Descriptions
      6. 8.6.6  CONFIG2 Register (Offset = 5h) [reset = 0h]
        1. Table 13. CONFIG2 Register Field Descriptions
      7. 8.6.7  ENABLE1 Register (Offset = 6h) [reset = 0h]
        1. Table 14. ENABLE1 Register Field Descriptions
      8. 8.6.8  ENABLE2 Register (Offset = 7h) [reset = 0h]
        1. Table 15. ENABLE2 Register Field Descriptions
      9. 8.6.9  CONTROL Register (Offset = 8h) [reset = 0h]
        1. Table 16. CONTROL Register Field Descriptions
      10. 8.6.10 GPIO_AMUX Register (Offset = Bh) [reset = 0h]
        1. Table 17. GPIO_AMUX Register Field Descriptions
      11. 8.6.11 COSW Register (Offset = Ch) [reset = 0h]
        1. Table 18. COSW Register Field Descriptions
      12. 8.6.12 CO Register (Offset = Dh) [reset = 0h]
        1. Table 19. CO Register Field Descriptions
      13. 8.6.13 LEDLDO Register (Offset = Fh) [reset = 0h]
        1. Table 20. LEDLDO Register Field Descriptions
      14. 8.6.14 PH_CTRL Register (Offset = 10h) [reset = 0h]
        1. Table 21. PH_CTRL Register Field Descriptions
      15. 8.6.15 LED_DAC_A Register (Offset = 11h) [reset = 0h]
        1. Table 22. LED_DAC_A Register Field Descriptions
      16. 8.6.16 LED_DAC_B Register (Offset = 12h) [reset = 0h]
        1. Table 23. LED_DAC_B Register Field Descriptions
  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 Photo Amplifier Component Selection
        2. 9.2.2.2 LED Driver Component Selection
        3. 9.2.2.3 LED Voltage Supply Selection
        4. 9.2.2.4 Regulator Component Selection
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Photo Amplifier Layout
      2. 11.1.2 CO Amplifier Layout
      3. 11.1.3 Ground Plane Layout
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Photo Chamber AFE
    • Dual 8-bit programmable current LED drivers
    • Temperature compensation of LED current
    • Ultra-low offset op-amp for photodiodes
    • Programmable and bypassable gain stage
  • Carbon Monoxide Sensor AFE
    • Ultra-low offset gain stage
    • Programmable gain and reference
  • Power Management
    • Programmable LDO for external microcontroller
  • SLC interface transmitter and receiver
  • Ultra-low power consumption
  • I2C serial interface
  • Wide input voltage range