SLIS144B September   2011  – February 2017

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and 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 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
    4. 9.4 Device Functional Modes
      1. 9.4.1 Voltage Divider Mode
    5. 9.5 Programming
      1. 9.5.1 I2C General Operation and Overview
        1. 9.5.1.1 START and STOP Conditions
        2. 9.5.1.2 Data Validity and Byte Formation
        3. 9.5.1.3 Acknowledge (ACK) and Not Acknowledge (NACK)
        4. 9.5.1.4 Repeated Start
      2. 9.5.2 Programing with I2C
        1. 9.5.2.1 Write Operation
        2. 9.5.2.2 Read Operation
    6. 9.6 Register Maps
      1. 9.6.1 Slave Address
      2. 9.6.2 Register Address
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
      3. 10.2.3 Application Curve
  11. 11Power Supply Recommendations
    1. 11.1 Power Sequence
    2. 11.2 Power-On Reset Requirements
    3. 11.3 I2C Communication After Power Up
    4. 11.4 Wiper Position While Unpowered and After Power Up
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Related Links
    3. 13.3 Receiving Notification of Documentation Updates
    4. 13.4 Community Resources
    5. 13.5 Trademarks
    6. 13.6 Electrostatic Discharge Caution
    7. 13.7 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Single-Channel, 128-Position Resolution
  • 10-kΩ End-to-End Resistance Options
  • Low Temperature Coefficient: 22 ppm/°C
  • I2C Serial Interface
  • 2.7-V to 5.5-V Single-Supply Operation
  • ±20% Resistance Tolerance
  • A and B Versions Have Different I2C Addresses
  • L Terminal is Internal and Connected to GND
  • Operating Temperature: –40°C to +125°C
  • Available in Industry Standard SC70 Packages
  • ESD Performance Tested per JESD 22
    • 2000-V Human-Body Model (A114-B, Class II)

2 Applications

  • Mechanical Potentiometer Replacement
  • Adjustable Power Supplies
  • Adjustable Gain Amplifiers and Offset Trimming
  • Precision Calibration of Setpoint Thresholds
  • Sensor Trimming and Calibration

3 Description

The TPL0401x-10 device is a single-channel, linear-taper digital potentiometer with 128 wiper positions. The TPL0401x-10 has the low terminal internal and connected to GND. The position of the wiper can be adjusted using an I2C interface. The TPL0401x-10 is available in a 6-pin SC70 package with a specified temperature range of –40°C to +125°C. The part has a 10-kΩ end-to-end resistance and can operate with a supply voltage range of 2.7 V to 5.5 V. This kind of product is widely used in setting the voltage reference for low power DDR3 memory.

The TPL0401x-10 has the low terminal internal and connected to GND.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPL0401A-10
TPL0401B-10		 SC70 (6) 2.00 mm × 1.25 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

TPL0401A TPL0401B funcBlockDiag_SLIS144.gif