SNVSB03D December   2018  – January 2020

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Circuit
      2.      TPS3840 Typical Supply Current
  4. 4 Revision History
  5. 5 Device Comparison
  6. 6 Pin Configuration and Functions
    1.     Pin 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 Input Voltage (VDD)
        1. 8.3.1.1 VDD Hysteresis
        2. 8.3.1.2 VDD Transient Immunity
      2. 8.3.2 User-Programmable Reset Time Delay
      3. 8.3.3 Manual Reset (MR) Input
      4. 8.3.4 Output Logic
        1. 8.3.4.1 RESET Output, Active-Low
        2. 8.3.4.2 RESET Output, Active-High
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Operation (VDD > VDD(min))
      2. 8.4.2 VDD Between VPOR and VDD(min)
      3. 8.4.3 Below Power-On-Reset (VDD < VPOR)
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design 1: Dual Rail Monitoring with Power-Up Sequencing
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Design 2: Battery Voltage and Temperature Monitor
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
      3. 9.2.3 Design 3: Fast Start Undervoltage Supervisor with Level-shifted Input
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
      4. 9.2.4 Design 4: Voltage Monitor with Back-up Battery Switchover
        1. 9.2.4.1 Design Requirements
        2. 9.2.4.2 Detailed Design Procedure
      5. 9.2.5 Application Curve: TPS3840EVM
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Nomenclature
    2. 12.2 Support Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

12.1 Device Nomenclature

Table 2 shows how to decode the function of the device based on its part number

Table 2. Device Naming Convention

DESCRIPTION NOMENCLATURE VALUE
Part number TPS3840 TPS3840
Variant code (Output Topology) DL Open-Drain, Active-Low
PH Push-Pull, Active-High
PL Push-Pull, Active-Low
Detect Voltage Option ## (two characters) Example: 16 stands for 1.6 V threshold
Package DBV SOT23-5
Reel R Large Reel

Table 3 shows the possible variants of the TPS3840. Contact Texas Instruments for details and availability of other options shown; minimum order quantities apply.

Table 3. Device Threshold

PRODUCT VOLTAGE THRESHOLD (VIT-) HYSTERESIS (VHYST)
OPEN-DRAIN, ACTIVE-LOW PUSH-PULL, ACTIVE-LOW PUSH-PULL, ACTIVE-HIGH TYP (V) TYP (V)
TPS3840DL16 TPS3840PL16 TPS3840PH16 1.6 0.100
TPS3840DL17 TPS3840PL17 TPS3840PH17 1.7 0.100
TPS3840DL18 TPS3840PL18 TPS3840PH18 1.8 0.100
TPS3840DL19 TPS3840PL19 TPS3840PH19 1.9 0.100
TPS3840DL20 TPS3840PL20 TPS3840PH20 2.0 0.100
TPS3840DL21 TPS3840PL21 TPS3840PH21 2.1 0.100
TPS3840DL22 TPS3840PL22 TPS3840PH22 2.2 0.100
TPS3840DL23 TPS3840PL23 TPS3840PH23 2.3 0.100
TPS3840DL24 TPS3840PL24 TPS3840PH24 2.4 0.100
TPS3840DL25 TPS3840PL25 TPS3840PH25 2.5 0.100
TPS3840DL26 TPS3840PL26 TPS3840PH26 2.6 0.100
TPS3840DL27 TPS3840PL27 TPS3840PH27 2.7 0.100
TPS3840DL28 TPS3840PL28 TPS3840PH28 2.8 0.100
TPS3840DL29 TPS3840PL29 TPS3840PH29 2.9 0.100
TPS3840DL30 TPS3840PL30 TPS3840PH30 3.0 0.100
TPS3840DL31 TPS3840PL31 TPS3840PH31 3.1 0.100
TPS3840DL32 TPS3840PL32 TPS3840PH32 3.2 0.200
TPS3840DL33 TPS3840PL33 TPS3840PH33 3.3 0.200
TPS3840DL34 TPS3840PL34 TPS3840PH34 3.4 0.200
TPS3840DL35 TPS3840PL35 TPS3840PH35 3.5 0.200
TPS3840DL36 TPS3840PL36 TPS3840PH36 3.6 0.200
TPS3840DL37 TPS3840PL37 TPS3840PH37 3.7 0.200
TPS3840DL38 TPS3840PL38 TPS3840PH38 3.8 0.200
TPS3840DL39 TPS3840PL39 TPS3840PH39 3.9 0.200
TPS3840DL40 TPS3840PL40 TPS3840PH40 4.0 0.200
TPS3840DL41 TPS3840PL41 TPS3840PH41 4.1 0.200
TPS3840DL42 TPS3840PL42 TPS3840PH42 4.2 0.200
TPS3840DL43 TPS3840PL43 TPS3840PH43 4.3 0.200
TPS3840DL44 TPS3840PL44 TPS3840PH44 4.4 0.200
TPS3840DL45 TPS3840PL45 TPS3840PH45 4.5 0.200
TPS3840DL46 TPS3840PL46 TPS3840PH46 4.6 0.200
TPS3840DL47 TPS3840PL47 TPS3840PH47 4.7 0.200
TPS3840DL48 TPS3840PL48 TPS3840PH48 4.8 0.200
TPS3840DL49 TPS3840PL49 TPS3840PH49 4.9 0.200
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