SLVSLJ5B March   2026  – September 2026 TCA9846

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Pin Configuration and Functions
  6. 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 (Global)
    6. 5.6 I2C Interface Timing Requirements
    7. 5.7 Reset Timing Requirements
    8. 5.8 Switching Characteristics
    9. 5.9 Typical Characteristics
  7. Parameter Measurement Information
  8. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1 RESET Input
      2. 7.4.2 Power-On Reset
    5. 7.5 Programming
      1. 7.5.1 I2C Interface
      2. 7.5.2 Device Address
      3. 7.5.3 Bus Transactions
        1. 7.5.3.1 Writes
        2. 7.5.3.2 Reads
      4. 7.5.4 Control Register
      5. 7.5.5 RESET Input
      6. 7.5.6 Power-On Reset
      7. 7.5.7 Software Reset
      8. 7.5.8 Device ID
  9. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Voltage Translation Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Power-On Reset Requirements
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Pin Configuration and Functions

TCA9846 PW Package, 16-Pin TSSOP(Top View)Figure 4-1 PW Package, 16-Pin TSSOP(Top View)
TCA9846 RUM Package, 16-Pin WQFN (Top View)Figure 4-2 RUM Package, 16-Pin WQFN (Top View)
Table 4-1 Pin Functions
PINTYPEDESCRIPTION
NAMETSSOP (PW)WQFN (RUM)
A0216IAddress input 0. Connect directly to VDD2 or ground
A11311IAddress input 1. Connect directly to VDD2 or ground
VDD1115PowerLogic Level Power Supply(VCC)
VDD21614PowerCore Logic Power Supply(VCC)
RESET31IActive-low reset input. Connect to VDD2 or VDPUM(1) through a pull-up resistor, if not used
SD042I/OSerial data 0. Connect to VDPU0(1) through a pull-up resistor
SC053I/OSerial clock 0. Connect to VDPU0(1) through a pull-up resistor
SD164I/OSerial data 1. Connect to VDPU1(1) through a pull-up resistor
SC175I/OSerial clock 1. Connect to VDPU1(1) through a pull-up resistor
SD2

9

7I/OSerial data 2. Connect to VDPU2(1) through a pull-up resistor
SC2

10

8I/OSerial clock 2. Connect to VDPU2(1) through a pull-up resistor
SD3119I/OSerial data 3. Connect to VDPU3(1) through a pull-up resistor
SC31210I/OSerial clock 3. Connect to VDPU3(1) through a pull-up resistor
SCL1412I/OSerial clock bus. Connect to VDPUM(1) through a pull-up resistor
SDA1513I/OSerial data bus. Connect to VDPUM(1) through a pull-up resistor
GND86-Supply Ground
VDPUX is the pull-up reference voltage for the associated data line. VDPUM is the controller I2C reference voltage and VDPU0-VDPU3 are the target channel reference voltages.