SCPS169B September   2007  – March 2021 PCA9543A

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 Switching Characteristics
    8. 6.8 Interrupt and Reset Timing Requirements
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
      1. 8.4.1 RESET Input
      2. 8.4.2 Power-On Reset
    5. 8.5 Programming
      1. 8.5.1 I2C Interface
    6. 8.6 Control Register
      1. 8.6.1 Device Address
      2. 8.6.2 Control Register Description
      3. 8.6.3 Control Register Definition
      4. 8.6.4 Interrupt Handling
  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
      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
  13. 13Mechanical, 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 (unless otherwise noted) (1)
PARAMETER TEST CONDITIONS VCC MIN TYP MAX UNIT
VPORR Power-on reset voltage, VCC rising No load: VI = VCC or GND(2) 1.2 1.5 V
VPORF Power-on reset voltage, VCC

falling

 No load: VI = VCC or GND(2) 0.8 1 V
Vpass Switch output voltage VSWin = VCC,
ISWout = –100 μA		 5 V 3.6 V
4.5 V to 5.5 V 2.6 4.5
3.3 V 1.9
3 V to 3.6 V 1.6 2.8
2.5 V 1.5
2.3 V to 2.7 V 1.1 2
IOH INT VO = VCC 2.3 V to 5.5 V 100 μA
IOL SDA VOL = 0.4 V 2.3 V to 5.5 V 3 7 mA
VOL = 0.6 V 6 10
INT VOL = 0.4 V 3
II SCL, SDA VI = VCC or GND 2.3 V to 5.5 V –1 1 μA
SC1–SC0, SD1–SD0 VI = VCC or GND 2.3 V to 3.6 V –1 1
4.5 V to 5.5 V –1 100
A1, A0 VI = VCC or GND 2.3 V to 3.6 V –1 1
4.5 V to 5.5 V –1 50
INT1– INT0 VI = VCC or GND 2.3 V to 3.6 V –1 1
4.5 V to 5.5 V –1 50
RESET VI = VCC or GND 2.3 V to 3.6 V –1 1
4.5 V to 5.5 V –1 50
ICC Operating mode fSCL = 100 kHz VI = VCC or GND, IO = 0 5.5 V 17 50 μA
3.6 V 6 20
2.7 V 3 16
Standby mode Low inputs VI = GND, IO = 0 5.5 V 1.6 2
3.6 V 1 1.3
2.7 V 0.7 1.1
High inputs VI = VCC, IO = 0 5.5 V 1.6 2
3.6 V 1 1.3
2.7 V 0.7 1

.1
ΔICC Supply-current change INT1– INT0 One INT1– INT0 input at 0.6 V,
Other inputs at VCC or GND		 2.3 V to 5.5 V 8 20 μA
One INT1– INT0 input at VCC – 0.6 V,
Other inputs at VCC or GND		 8 20
SCL, SDA SCL or SDA input at 0.6 V,
Other inputs at VCC or GND		 8 20
SCL or SDA input at VCC – 0.6 V,
Other inputs at VCC or GND		 8 20
Ci A1, A0 VI = VCC or GND 2.3 V to 3.6 V 4 5 pF
4.5 V to 5.5 V 4 5
INT1– INT0 VI = VCC or GND 2.3 V to 3.6 V 4 6
4.5 V to 5.5 V 4 6
RESET VI = VCC or GND 2.3 V to 3.6 V 4 5
4.5 V to 5.5 V 4 5
SCL VI = VCC or GND 2.3 V to 5.5 V 15 19
Cio(OFF)(3) SDA VI = VCC or GND, Switch OFF 2.3 V to 5.5 V

15

 19 pF
SC1–SC0, SD1–SD0 6 8
Ron Switch on-state resistance VO = 0.4 V, IO = 15 mA 4.5 V to 5.5 V 4 10 20 Ω
3 V to 3.6 V 5 13 25
VO = 0.4 V, IO = 10 mA 2.3 V to 2.7 V 7 16 50
(1) For operation between published voltage ranges, refer to the worst-case parameter in both ranges.
(2) To reset the part, either RESET must be low or VCC must be lowered to 0.2 V.
(3) Cio(ON) depends on the device capacitance and load that is downstream from the device.