SNAS806
September 2020
TPL1401
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Timing Requirements: I2C Standard Mode
6.7
Timing Requirements: I2C Fast Mode
6.8
Timing Requirements: I2C Fast Mode Plus
6.9
Typical Characteristics: VDD = 1.8 V (Reference = VDD) or VDD = 2 V (Internal Reference)
6.10
Typical Characteristics: VDD = 5.5 V (Reference = VDD) or VDD = 5 V (Internal Reference)
6.11
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Digital Potentiometer (Digipot) Architecture
7.3.1.1
Reference Selection and Digipot Transfer Function
7.3.1.1.1
Power Supply as Reference
7.3.1.1.2
Internal Reference
7.3.2
Digipot Update
7.3.3
Nonvolatile Memory (EEPROM or NVM)
7.3.3.1
NVM Cyclic Redundancy Check
7.3.3.1.1
NVM_CRC_ALARM_USER Bit
7.3.3.1.2
NVM_CRC_ALARM_INTERNAL Bit
7.3.4
Power-On Reset (POR)
7.3.5
Software Reset
7.3.6
Device Lock Feature
7.4
Device Functional Modes
7.4.1
Power Down Mode
7.5
Programming
7.5.1
F/S Mode Protocol
7.5.2
I2C Update Sequence
7.5.3
Address Byte
7.5.4
Command Byte
7.5.5
I2C Read Sequence
7.6
Register Map
7.6.1
STATUS Register (address = D0h) (reset = 000Ch or 0014h)
7.6.2
GENERAL_CONFIG Register (address = D1h) (reset = 01F0h)
7.6.3
PROTECT Register (address = D3h) (reset = 0008h)
7.6.4
DPOT_POSITION Register (address = 21h) (reset = 0000h)
7.6.5
USER_BYTE1 Register (address = 25h) (reset = 0000h)
7.6.6
USER_BYTE2 Register (address = 26h) (reset = 0000h)
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DSG|8
MPDS308C
Thermal pad, mechanical data (Package|Pins)
DSG|8
QFND141I
Orderable Information
snas806_oa
snas806_pm
2
Applications
Exit and emergency lighting
Barcode scanner
Barcode reader
Smart speaker
Video doorbell
Cordless vacuum cleaner
Robotic lawn mower
Laser distance meter