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Texas Instruments LMR36015ARNXT | Demoboard TIDA-010052
Safety power supply for motor drives reference design
Overview
| Topology | Buck Converter |
| Input voltage | 4.2-60 V |
| Output 1 | 3.3 V / 1.5 A |
Description
This reference design implements a safe-power supply for powering up microcontrollers in an architecture featuring two MCUs. The design has several protection features including overvoltage protection and short circuit protection to prevent the MCUs from getting damaged. The DC/DCs, LMR36515 and LMR36015 convert the 5-V and 12-V rail into 3.3 V, which is monitored by the TPS3703 and TPS3702 voltage monitors respectively
Features
- Overvoltage, overcurrent, and short circuit protection of the 3.3-V rail for powering the MCU
- Protection of the power supply input from an overvoltage of up to 60 V
- Small form factor for space-critical applications
- Synchronous buck DC/DC converter with integrated switch optimized for > 90% efficiency and compact design
Typical applications
- Servo drive functional safety module
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 | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 625 nm, Red | Downloads27 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]625 nm | Emitting ColorRed | Peak Wavelength [typ.]630 nm | Luminous Intensity [typ.]250 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | – | MountSMT | – | – | – | – | |||
 | WE-TPC SMT Tiny Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | – | – | – | – | – | – | – | Inductance10 µH | Rated Current1.3 A | Saturation Current1 A | Self Resonant Frequency45 MHz | MountSMT | – | – | – | DC Resistance150 mΩ | ||||
 | WE-LHMI SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | – | – | – | – | – | – | – | Inductance15 µH | – | – | Self Resonant Frequency10 MHz | MountSMT | Performance Rated Current3.6 A | Saturation Current @ 10%3.5 A | Saturation Current @ 30%7.2 A | DC Resistance92 mΩ |