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  • Solving Ultra-Low-Power Challenges for ConnectedDevices With Advanced Battery Chemistries

    • SWRT026 September   2023 CC2340R5 , TPS22916 , TPS61299

       

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  • Solving Ultra-Low-Power Challenges for ConnectedDevices With Advanced Battery Chemistries
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Product Overview

Solving Ultra-Low-Power Challenges for Connected
Devices With Advanced Battery Chemistries

Description

With the growing push for smaller and low-power connected devices, systems face a dual challenge: achieving ultra-low quiescent and shutdown currents while adapting to lower supply voltages. Advancements in battery manufacturing bring high-power density chemistries such as Silver-Oxide and Zinc-Air to more devices including medical wearables, Internet of Things (IoT) devices, and measurement instrumentation. This results in a need for small connected systems that operate with supply voltages as low as 1 V and shutdown currents in the 10s of nA range.

GUID-20230911-SS0I-22LQ-2QX3-29XDRDSXMNWC-low.svg Block Diagram
GUID-20230831-SS0I-R97G-WMHV-LZH8RLPBZ59W-low.png Example Implementation

Features

  • Active standby system-level currents down to 1 µA with 1.5-V supplies and minimal component count.
  • System level shelf-mode and ship-mode currents as low as 60 nA without a load switch and down to 10 nA with a load switch.

Applications

  • Medical sensor patches
  • Continuous blood glucose monitor
  • Hearing aid
  • Insulin pump

Recommended Devices

Part Number Range Standby Current Shutdown Current Package Features
CC2340R5 1.71 V – 3.8 V 700 nA 150 nA QFN (4 mm × 4 mm)
WCSP (2.2 mm × 2.6 mm)
Bluetooth® 5.3 Low Energy,
12-bit ADC
TPS61299 0.7 V – 5.5 V 155 nA 60 nA WCSP (1.2 mm × 0.8 mm) High efficiency across load ranges
TPS22916 1.0 V – 5.5 V 500 nA 10 nA WCSP (0.78 mm × 0.78 mm) Low-leakage load switch

TI Resources

  • SimpleLink Academy for CC23XX
  • SimpleLink Low Power F3 Documentation Overview
  • SimpleLink 2.4GHz Hardware Design Reviews

IMPORTANT NOTICE AND DISCLAIMER

TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS.

These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable standards, and any other safety, security, or other requirements. These resources are subject to change without notice. TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource. Other reproduction and display of these resources is prohibited. No license is granted to any other TI intellectual property right or to any third party intellectual property right. TI disclaims responsibility for, and you will fully indemnify TI and its representatives against, any claims, damages, costs, losses, and liabilities arising out of your use of these resources.

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