Mobile Point of Sale (mPOS) Power Reference Design TIDA-00818 (ACTIVE)

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Key Document

Description

This mobile point of sale (mPOS) reference design features a 1S1P Li-Ion battery architecture to reduce system size and cost. Integrated load switches are used to reduce standby power consumption and maximize battery life to enable the single-cell architecture. A USB Type-C charging port is also featured to support higher power delivery and minimize charging time.

Features
  • 1S1P low-voltage battery architecture made possible by inclusion of low-voltage (5-V) printer rail driven by DRV8833
  • USB Type-C charging port via TUSB320 and BQ25890 updates current USB implementations to new standard
  • TPS22918 load switch disconnects inactive subsystems to extend battery life in a small SOT-23 package (~500-nA leakage)
  • TCA8414 integrates keypad scanner and GPIO expander into a single package, simplifying design and reducing BOM count

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Schematic/Block Diagram

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Design Files

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TI Devices (11)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
BQ25890  1S 5A Fast Charger MaxCharge™ Technology for High Input Voltage and Adjustable USB OTG Boost  Battery management  Sample & Buy View Design Kits & Evaluation Modules
DRV8833  2A Low Voltage Dual Brushed DC or Single Bipolar Stepper Motor Driver (PWM Ctrl)  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
INA219  26V, Bi-Directional, High-Side, I2C Out Current/Power Monitor  Current sense amplifiers  Sample & Buy View Design Kits & Evaluation Modules
MSP430G2553  MSP430G2x53, MSP430G2x13 Mixed Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
TCA5013  Smart card interface IC for 1 user card + 3 SAMs  Interface  Sample & Buy View Design Kits & Evaluation Modules
TCA8418  I2C Controlled Keypad Scan IC With Integrated ESD Protection  I2C  Sample & Buy View Design Kits & Evaluation Modules
TPS22918  5.5V, 2A, 52mΩ load switch with adjustable rise time and adjustable quick output discharge  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS22965  5.7V, 6A, 16mΩ load switch with adjustable rise time and optional quick output discharge  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS61230  High Efficiency Synchronous Boost Converter With 5-A Switch  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
TPS63020  High Efficiency Single Inductor Buck-Boost Converter with 4A Switch  Buck-boost & inverting  Sample & Buy View Design Kits & Evaluation Modules
TUSB320  USB Type-C for USB 2.0 CC port controller  USB  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
BQ25890 Download Download
DRV8833 Download
Download Download
Download -
INA219 Download Download
Download -
MSP430G2553 Download
Download Download
Download Download
Download Download
TCA8418 Download Download
TPS22918 Download
TPS22965 Download Download
TPS61230 Download Download
TPS63020 Download Download
TUSB320 Download Download

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Technical Documents

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Datasheet (10)
Title Type Size (KB) Date
PDF 2144 19 Mar 2019
PDF 1469 25 Jun 2018
PDF 1891 04 May 2018
PDF 1711 02 May 2017
PDF 2155 12 Aug 2016
PDF 1657 01 Feb 2016
PDF 1511 06 Jul 2015
PDF 2072 24 Oct 2014
PDF 1266 11 Oct 2014
PDF 2227 16 May 2013
User guides (1)
Title Type Size (KB) Date
PDF 1368 15 Jun 2016
Design files (6)
Title Type Size (KB) Date
ZIP 764 29 Jun 2016
ZIP 1733 29 Jun 2016
PDF 2091 29 Jun 2016
PDF 159 29 Jun 2016
PDF 92 29 Jun 2016
PDF 515 29 Jun 2016

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