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Texas Instruments LM5160DNTR | Demoboard TIDA-00486
Isolated RS-485 to Wi-Fi Bridge with 24 VAC Power Reference Design
Overview
| Topology | FlyBuck (Double Buck) |
| Input voltage | 12-48 V |
| Output 1 | 3.3 V / 0.55 A |
| Output 2 | 3.6 V / 0.05 A |
| IC revision | C |
Description
The TIDA-00486 TI Design uses Texas Instruments SimpleLink Wi-Fi CC3200 Internet-on-a-chip Wireless MCU module to create a data bridge between an RS-485 network and a Wi-Fi network. An ISO15 transceiver provides an isolated RS-485 interface with up to 2500 VRMS of isolation. The LM5160 Fly-Buck™ power supply provides both isolated and non-isolated 3.3 V outputs for the two portions of the circuit. The design can be powered with AC or DC power up to 30 VRMS or 48 V peakA version of this design with a non-isolated RS-485 interface is presented in TIDA-00485.
Features
REMARK:~ BOM IS ADDED WITH EVAL BOARD PDF
Wide Input Voltage Range of 18 V to 30 V AC, 12 V to 48 V DCFly-Buck™ Power Supply delivers 3.3 V at 550 mA, Isolated 3.6 V at 50 mAAdd Wi-Fi® connectivity to an RS-485 network quickly and simplyGalvanically isolated RS-485 interface to improve system safety and reliabilityCC3200 Application Processor Provides Adaptability to Customer Communication Protocols
Typical applications
- Building Automation
- Compressors
- Thermostats
- HVAC
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT(A) | RDC max.(mΩ) | fres(MHz) | Size | Version | VIN | VOut1(V) | IOut1(A) | Vbuck(V) | NPRI : NSEC | LS(nH) | VT(V (AC)) | fswitch(kHz) | Mount | L(mm) | W(mm) | H(mm) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-IBTI Isolated Buck Transformers, 42 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-IBTI Isolated Buck Transformers | Inductance42 µH | – | Saturation Current1.1 A | – | – | SizeEP7 | VersionIso-Buck | Input Voltage 12 - 48 V (DC) | Output Voltage 13.6 V | Output Current 10.1 A | Buck Voltage3.3 V | Turns Ratio1:1.2 | Leakage Inductance800 nH | Insulation Test Voltage2500 V (AC) | Switching Frequency 300 | MountSMT | Length9.78 mm | Width9.14 mm | Height10.54 mm | ||||
 | WE-PD SMT Power Inductor, 47 µH, 1.25 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance47 µH | Performance Rated Current1.25 A | – | DC Resistance360 mΩ | Self Resonant Frequency13.5 MHz | Size7332 | VersionRobust | – | – | – | – | – | – | – | – | MountSMT | Length7.3 mm | Width7.3 mm | Height3.2 mm |