SCPS192E April   2009  – January 2023 TCA6408A

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 I2C Interface Timing Requirements
    7. 6.7 Reset Timing Requirements
    8. 6.8 Switching Characteristics
    9. 6.9 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Voltage Translation
      2. 8.3.2 I/O Port
      3. 8.3.3 Interrupt Output ( INT)
      4. 8.3.4 Reset Input ( RESET)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power-On Reset (POR)
      2. 8.4.2 Powered-Up
    5. 8.5 Programming
      1. 8.5.1 I2C Interface
      2. 8.5.2 Bus Transactions
        1. 8.5.2.1 Writes
        2. 8.5.2.2 Reads
    6. 8.6 Register Map
      1. 8.6.1 Device Address
      2. 8.6.2 Control Register and Command Byte
      3. 8.6.3 Register 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 Minimizing ICC When I/O is Used to Control LEDs
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power-On Reset Requirements
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Support Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
      1.      Mechanical, Packaging, and Orderable Information

Package Options

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

6.5 Electrical Characteristics

over recommended operating free-air temperature range, VCCI = 1.65 V to 5.5 V (unless otherwise noted)
PARAMETERTEST CONDITIONSVCCPMINTYP(1)MAXUNIT
VIKInput diode clamp voltageII = –18 mA1.65 V to 5.5 V–1.2V
VPORPower-on reset voltage(2)VI = VCCP or GND, IO = 01.65 V to 5.5 V11.4V
VOHP-port high-level output voltageIOH = –8 mA1.65 V1.2V
2.3 V1.8
3 V2.6
4.5 V4.1
IOH = –10 mA1.65 V1.1
2.3 V1.7
3 V2.5
4.5 V4.0
VOLP-port low-level output voltageIOL = 8 mA1.65 V0.45V
2.3 V0.25
3 V0.25
4.5 V0.2
IOL = 10 mA1.65 V0.6
2.3 V0.3
3 V0.25
4.5 V0.2
IOLSDAVOL = 0.4 V1.65 V to 5.5 V3mA
INT315
IISCL, SDA, RESETVI = VCCI or GND1.65 V to 5.5 V±0.1μA
ADDRVI = VCCP or GND±0.1
IIHP-portVI = VCCP1.65 V to 5.5 V1μA
IILP-portVI = GND1μA
ICC
(ICCI + ICCP)		Operating modeSDA,
P-port,
ADDR,
RESET		VI on SDA and RESET= VCCI or GND,
VI on P-port and ADDR = VCCP or GND,
IO = 0, I/O = inputs,
fSCL = 400 kHz		3.6 V to 5.5 V1020μA
2.3 V to 3.6 V6.515
1.65 V to 2.3 V49
Standby modeSCL, SDA,
P-port,
ADDR,
RESET		VI on SCL, SDA and RESET = VCCI or GND,
VI on P-Port and ADDR = VCCP or GND,
IO = 0, I/O = inputs,
fSCL = 0		3.6 V to 5.5 V1.57
2.3 V to 3.6 V13.2
1.65 V to 2.3 V0.51.7
ΔICCIAdditional current in standby modeSCL, SDA, RESETOne input at VCCI – 0.6 V,
Other inputs at VCCI or GND		1.65 V to 5.5 V25μA
ΔICCPP-port, ADDROne input at VCCP – 0.6 V,
Other inputs at VCCP or GND		1.65 V to 5.5 V80μA
CiSCLVI = VCCI or GND1.65 V to 5.5 V67pF
CioSDAVIO = VCCI or GND1.65 V to 5.5 V78pF
P-portVIO = VCCP or GND7.58.5
(1) All typical values are at nominal supply voltage (1.8-V, 2.5-V, 3.3-V, or 5-V VCC) and TA = 25°C.
(2) When power (from 0 V) is applied to VCCP, an internal power-on reset holds the TCA6408A in a reset condition until VCCP has reached VPOR. At that time, the reset condition is released, and the TCA6408A registers and I2C/SMBus state machine initialize to their default states. After that, VCCP must be lowered to below 0.2 V and back up to the operating voltage for a power-reset cycle.