Power Solution for Battery Operated Meters With 30-dBm wM-Bus at 169 MHz Reference Design


Design files


This power management solution delivering 900mA @3.6V from various battery types for smart flow metering applications (residential gas and water meters). TIDA-00676 includes an ETSI Cat. 1 receiver capable RF subsystem for wM-Bus @ 169 MHz with up to +30 dBm transmit power meets all technical requirements for 169MHz RF links in Italy and France. Power management and RF sub-systems can be equally well used in data collectors and other end nodes (E-meter or In-Home Display) with wM-Bus@ 169 MHz links.

  • 360-nA Iq Step-Down Converter charges a SuperCap from multiple battery chemistries
  • Boost device supplies the 900mA current to a +30dBm Power Amplifier(PA)
  • ETSI Cat. 1 Receiver capable wM-Bus subsystem @ 169MHz with up to +30dBm transmit power and 55dB dynamic range
  • Ultra-low power FRAM MCU with rotation detection hardware and LCD controller
  • SRF7 configurations files for Receiving wM-Bus packets in all N-modes
  • Includes firmware in source code,  SRF7 Studio GUI configuration files and User's Guide
Output voltage options TIDA-00676.1
Vin (Min) (V) 2.5
Vin (Max) (V) 5.5
Vout (Nom) (V) 3.6
Iout (Max) (A) .8
Output Power (W) 2.88
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Integrated Switch
??image.gallery.download_en_US?? View video with transcript Video

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUAD5.PDF (1339 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement


Files used for 3D models or 2D drawings of IC components


Design file that contains information on physical board layer of design PCB

TIDRGQ1.PDF (1121 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Boost converters (integrated switch)

TPS610301.8Vin, 4-A Switch, 96% Efficient Boost Converter w/20µA Iq in TSSOP-16

Data sheet: PDF | HTML
Buck converters (integrated switch)

TPS627402.2V-5.5V input, ultra-low-power 300mA step-down buck DCDC converter with 360nA Iq

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR6989Rotary Sensing MCU with extended scan interface, 128KB FRAM, AES, LCD for flow meters

Data sheet: PDF | HTML
Sub-1 GHz transceivers

CC1120High performance Sub-1 GHz wireless transceiver for narrowband systems

Data sheet: PDF | HTML

Start development


Technical documentation

= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Design guide Power Solution for Battery Operated Meters With 30-dBm wM-Bus Design Guide Sep. 01, 2015

Related design resources

Hardware development

EVM430-FR6989 MSP430FR6989 evaluation module for extended scan interface (ESI) enabled ultra-low power MCU

Reference designs

PMP9753 Energy Buffering for Long-Life Battery Applications Reference Design

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​