Supporting wi-fi protocols like Sub-1 GHz, BLE, and NB-IoT, this resolution maximizes battery life whereas guaranteeing dependable connectivity for IoT-enabled utility purposes.
Sensible utility meters powered by batteries—resembling gasoline, water, and warmth meters—current a rising alternative for wi-fi communication applied sciences, together with Sub-1 GHz, Bluetooth Low Vitality (BLE), NB-IoT, and others. Every of those protocols comes with trade-offs when it comes to vary, information fee, and energy effectivity. Sub-1 GHz, for instance, delivers communication ranges of as much as 1600 meters with information charges reaching 500 kbps, making it appropriate for purposes like utility metering, smoke detectors, and building-based temperature sensors. For purposes requiring greater information throughput, BLE at 2.4 GHz could also be extra acceptable. BLE presents information charges as much as 2 Mbps and vary from 200 to 400 meters in long-range mode, whereas sustaining ultra-low energy consumption that permits it to function for years on a coin cell. Its broad applicability spans from medical wearables to client peripherals, making it one of the vital extensively used low-power wi-fi protocols.
This reference design TIDA-010053 by Texas Devices (TI) presents an environment friendly, battery-powered resolution tailor-made for wireless-enabled sensible meters and IoT purposes. The design helps numerous wi-fi applied sciences, together with Sub-1 GHz, BLE, and NB-IoT, and integrates three key energy provide topologies: buck, enhance, and buck-boost converters. These are optimized for battery-operated gadgets utilizing lithium manganese dioxide (LiMnO₂) major cells and may be applied alongside business off-the-shelf narrowband communication modules.
A core part of this reference design is the Battery and System Well being Monitoring {hardware} (TIDA-01546), which permits correct State-of-Well being (SOH) measurement of the battery. An always-on present sensing mechanism captures RF transmission peaks and schedules SOH measurement with an adjustable delay to make sure effectivity and battery longevity. The facility converters—TPS63900, TPS610995, and TPS62840—show excessive effectivity even below gentle masses, which is important for extending the working lifetime of sensible metering gadgets. For instance, the TPS63900 buck-boost converter delivers over 90% effectivity at only a 10-µA load with an especially low quiescent present of 75 nA. It additionally options dynamic voltage scaling, permitting purposes to shift between two output voltages to optimize energy throughout energetic and standby modes.
The TPS610995 enhance converter helps as much as 1 A output present with 400 nA typical quiescent present and is well-suited for purposes requiring excessive effectivity below gentle masses. Equally, the TPS62840 step-down (buck) converter makes use of TI’s DCS-Management™ topology to keep up excessive effectivity even within the microampere vary throughout Energy-Save Mode.
Goal purposes embrace gasoline, water, warmth, and chilly meters; mobile module asset monitoring; sensor tags; fault indicators; and automatic meter studying (AMR) techniques powered by major cells. This complete, low-power reference design ensures scalable efficiency for RF-enabled metering and IoT options.
TI has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) structure, and extra. The corporate’s web site has extra information concerning the reference design. To learn extra about this reference design, click on right here.
