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Texas Instruments TPS65381-Q1 | Demoboard TIDA-00548
4- to 20-mA Analog Input Module Reference Design for Safety Applications
Overview
| Topology | Buck Converter |
| Input voltage | 7.3-8.1 V |
| Switching frequency | 2250 kHz |
| Output 1 | 3.3 V |
| Output 2 | 5 V |
| IC revision | E2 |
Description
The TIDA-00548 design is an isolated dual-channel4- to 20-mA analog input reference design, whichcan be used as a sub-part for functional safetyprogrammable logic controllers (PLCs). This referencedesign delivers digitized input values using a 32-bithigh-performance analog-to-digital converter (ADC).The RM4x dual-core ARM® Cortex®-R4 based CPUwith lockstep technology and built-in self-tests (BIST)compares the converted values of up to nineselectable analog input signal chain paths. The dualinput approach with two separate burden resistorsallows redundant measurement of either a single 4- to20-mA loop or two independent loops. Hercules™ RMARM Cortex-R based MCUs for functional safetyapplications (part of the SafeTI designs packages)help to develop systems according to IEC 61508SIL 3.
Features
- Two-Channel, 4- to 20-mA Current Measurementfor Redundancy
- Two ADC References (External and Internal)
- Small Burden Resistor (24.9 Ω)
- ADC Built-in Features, such as Test DAC,Secondary ADC, Analog Signal Level Alarm
- Isolator Shutdown Upon Failure Provides ReliableNotification to Back End
- All Integrated Circuits: MTBF Greater 4×108
- Designed in BeagleBone Cape Form Factor
Typical applications
- Programmable Logic Controllers (PLCs)
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | L (µH) | IR (A) | ISAT (A) | fres (MHz) | Mount | VIN | VOut1 (V (DC)) | IOut1 (A) | Type of Insulation | fswitch (kHz) | ∫Udt (Vµs) | NPRI : NSEC | VT (V (AC)) | W (mm) | H (mm) | Pins (pcs) | Color | Gender | Packaging | Poles | L (mm) | Vaporphase process | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 150060VS75000 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WL-SMCW SMT Mono-color Chip LED Waterclear | 570 | Bright Green | 572 | 40 | 2 | AlInGaP | 140 | – | – | – | – | SMT | – | – | – | – | – | – | – | – | 0.8 | 0.7 | – | – | – | Tape and Reel | – | 1.6 | – | ||
| 150060RS75000 | SPEC | 26 files RAY files
| Active i| Production is active. Expected lifetime: >10 years. | WL-SMCW SMT Mono-color Chip LED Waterclear | 625 | Red | 630 | 250 | 2 | AlInGaP | 140 | – | – | – | – | SMT | – | – | – | – | – | – | – | – | 0.8 | 0.7 | – | – | – | Tape and Reel | – | 1.6 | – | ||
 | 744028003 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TPC SMT Tiny Power Inductor | – | – | – | – | – | – | – | 3.3 | 1 | 0.85 | 80 | SMT | – | – | – | – | – | – | – | – | 2.8 | 1.1 | 2 | – | – | – | – | 2.78 | – | ||
 | 744025220 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TPC SMT Tiny Power Inductor | – | – | – | – | – | – | – | 22 | 0.5 | 0.75 | 23 | SMT | – | – | – | – | – | – | – | – | 2.8 | 2.8 | 2 | – | – | – | – | 2.8 | – | ||
 | 416131160802 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WS-DISV Small Compact SMT Flat Actuator with Top Tape 1.27 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2 | – | – | Tape and Reel | 2 | 3.71 | Yes | |
 | 760390013 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTI Push-Pull Transformers | – | – | – | – | – | – | – | 475 | – | – | – | SMT | 3.3 V (DC) | 5 | 0.5 | Functional | 250 - 550 | 11 | 1:1.7 | 2500 | 10.2 | 4.19 | – | – | – | Tray | – | 6.73 | – | |
 | 60900213421 | SPEC | – | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Jumper | – | – | – | – | – | – | – | – | 3 | – | – | – | – | – | – | – | – | – | – | – | – | – | 1 | Black | Jumper | Bag | – | 2.44 | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 150060VS75000 | SPEC | |
| 150060RS75000 | SPEC | |
| 744028003 | SPEC | |
| 744025220 | SPEC | |
| 416131160802 | SPEC | – |
| 760390013 | SPEC | – |
| 60900213421 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | L (µH) | IR (A) | ISAT (A) | fres (MHz) | Mount | VIN | VOut1 (V (DC)) | IOut1 (A) | Type of Insulation | fswitch (kHz) | ∫Udt (Vµs) | NPRI : NSEC | VT (V (AC)) | W (mm) | H (mm) | Pins (pcs) | Color | Gender | Packaging | Poles | L (mm) | Vaporphase process | Samples |
|---|
