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Texas Instruments LM5018 | Demoboard TIDA-00365
75V/10A Protected Full-Bridge Power Stage Reference Design for Brushed DC Drives
Overview
| Topology | Buck Converter |
| Input voltage | 20-75 V |
| Switching frequency | 16-25 kHz |
| Output 1 | 12 V / 0.05 A |
Description
Low voltage brushed DC drives are used in many applications. TI offers a rich family of brushed DC motor driver solutions with flexible control interface options for one or more brushed DC motors up to 60V. For applications which require higher torque and power, often voltages above 60VDC are used. The TIDA-00365 protected full-bridge operates at nominal 75VDC input and 10A output current and features bipolar high-side current sensing leveraging a 100V full-bridge gate driver SM72295 with integrated amplifiers and four 100V NexFET power MOSFETs with ultra-low gate charge and small SON5x6 package with low thermal resistance. The power stage is protected against over-temperature, over-current and short-circuit between the motor terminals and motor terminals to ground. Onboard power supplies provide a 12V and a 3.3V rail for the gate driver and signal chain. The host processor interface is 3.3V I/O to connect a host MCU like C2000 Piccolo MCU for brushed DC motor current control.
Features
Protected full-bridge power stage with input voltage up to 100VDC (75VDC nominal) and 10A output currentBOM reduction through SM72295 100-V full-bridge gate driver with integrated amplifiers used for high-side bipolar phase current sensingCalibrated current sense accuracy ±1% (over full range ±10A and ±0.2% (within ±1A range)Full-bridge optimized for low EMI with 25ns rise/fall time on switch-node voltages with no over- and under-shootFull-bridge protected against over-temperature, under-voltage, over- and short-circuit current between motor terminals and motor terminals to GND95% efficiency at 16 kHz PWM. No heatsink required at 25C ambient and nominal load thanks to TI NexFET power MOSFETHost processor interface with dual complementary PWM inputs (3.3V CMOS) and analog outputs (0-3.3V) for bipolar high-side current sense and motor terminal voltage
Typical applications
- Isolated Bias Supply
- Smart Power Meters
- Telecommunication Systems
- Automotive Electronics
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.(°) | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | Q(%) | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IR(mA) | IR 2(mA) | ISAT(mA) | RDC(mΩ) | fres(MHz) | IR(A) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | Pitch(mm) | Ø D(mm) | Mount | Working Voltage(V (AC)) | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 525 nm, Green | 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.]525 nm | Emitting ColorGreen | Peak Wavelength [typ.]515 nm | Luminous Intensity [typ.]430 mcd | Forward Voltage [typ.]3.2 V | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | Size0603 | Operating Temperature -40 °C up to +85 °C | – | – | – | – | Length1.6 mm | Width0.8 mm | Height0.7 mm | – | PackagingTape and Reel | – | – | – | – | – | – | – | – | – | – | – | – | MountSMT | – | – | – | – | – | – | |||
| 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 ° | – | – | – | Size0603 | Operating Temperature -40 °C up to +85 °C | – | – | – | – | Length1.6 mm | Width0.8 mm | Height0.7 mm | – | PackagingTape and Reel | – | – | – | – | – | – | – | – | – | – | – | – | MountSMT | – | – | – | – | – | – | |||
 | WE-PMI Power Multilayer Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PMI Power Multilayer Inductor | – | – | – | – | – | – | – | – | – | – | Size1008 | Operating Temperature -40 °C up to +125 °C | Q-Factor27 % | – | – | – | Length2.5 mm | Width2 mm | Height0.8 mm | – | – | Inductance10 µH | Rated Current600 mA | Rated Current 2850 mA | Saturation Current125 mA | DC Resistance300 mΩ | Self Resonant Frequency20 MHz | – | – | – | – | – | – | MountSMT | – | Pins2 | – | – | TypeHigh Saturation Current | – | ||||
 | WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | – | – | – | – | – | – | – | Size4012 | Operating Temperature -40 °C up to +125 °C | – | – | – | – | Length4 mm | Width4 mm | Height1.2 mm | – | – | Inductance100 µH | – | – | Saturation Current300 mA | DC Resistance1697 mΩ | Self Resonant Frequency10 MHz | Rated Current0.43 A | – | – | – | – | – | MountSMT | – | – | – | – | – | – | ||||
 | WCAP-ATUL Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATUL Aluminum Electrolytic Capacitors | – | – | – | – | – | – | – | Capacitance100 µF | Capacitance±20% | Rated Voltage100 V (DC) | – | – | – | Dissipation Factor9 % | – | – | Length25 mm | – | – | – | PackagingAmmopack | – | – | – | – | – | – | – | Endurance 7000 | Ripple Current800 mA | Leakage Current100 µA | Pitch5 mm | Diameter10 mm | – | – | – | – | – | – | – | ||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | Capacitance10 nF | Capacitance±10% | Rated Voltage16 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | – | Capacitance1 nF | Capacitance±10% | Rated Voltage25 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | Capacitance100 pF | Capacitance±10% | Rated Voltage50 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | Capacitance1 µF | Capacitance±20% | Rated Voltage16 V (DC) | Size0603 | Operating Temperature -55 °C up to +85 °C | – | Dissipation Factor10 % | Insulation Resistance0.1 GΩ | Ceramic TypeX5R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
 | WR-PHD Pin Header - Dual, –, – | Simulation– | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Dual | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | Length5.08 mm | – | – | – | PackagingTape and Reel with Cap | – | – | – | – | – | – | Rated Current3 A | – | – | – | Pitch2.54 mm | – | MountSMT | Working Voltage250 V (AC) | Pins4 | – | – | TypeStraight | – | ||
 | WR-PHD Pin Header - Dual, –, – | Simulation– | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Dual | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | Length15.24 mm | – | – | – | PackagingTape and Reel with Cap | – | – | – | – | – | – | Rated Current3 A | – | – | – | Pitch2.54 mm | – | MountSMT | Working Voltage250 V (AC) | Pins12 | – | – | TypeStraight | – | ||
 | WR-TBL Series 311 - 5.08 mm Open Vertical PCB Header, –, – | Simulation– | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 311 - 5.08 mm Open Vertical PCB Header | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | – | Length10.16 mm | – | – | – | PackagingBox | – | – | – | – | – | – | Rated Current20 A | – | – | – | Pitch5.08 mm | – | MountTHT | Working Voltage320 V (AC) | Pins2 | PCB/Cable/PanelPCB | ModularityNo | TypeVertical | – | ||
 | WR-TBL Series 311 - 5.08 mm Close Vertical PCB Header, –, – | Simulation– | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 311 - 5.08 mm Close Vertical PCB Header | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | – | Length17.24 mm | – | – | – | PackagingBox | – | – | – | – | – | – | Rated Current20 A | – | – | – | Pitch5.08 mm | – | MountTHT | Working Voltage320 V (AC) | Pins3 | PCB/Cable/PanelPCB | ModularityNo | TypeVertical | – | ||
 | WR-TBL Series 351 - 5.08 mm Vertical, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 351 - 5.08 mm Vertical | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | – | Length15.24 mm | – | – | – | PackagingBox | – | – | – | – | – | – | Rated Current20 A | – | – | – | Pitch5.08 mm | – | MountCable | Working Voltage320 V (AC) | Pins3 | PCB/Cable/PanelCable | ModularityNo | TypeVertical | Wire Section 12 to 24 (AWG) 3.31 to 0.205 (mm²) | |||
 | WR-TBL Series 352 - 5.08 mm Horizontal with Hook on Wire Side, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | – | Length10.16 mm | – | – | – | PackagingBox | – | – | – | – | – | – | Rated Current17 A | – | – | – | Pitch5.08 mm | – | MountCable | Working Voltage320 V (AC) | Pins2 | PCB/Cable/PanelCable | ModularityNo | TypeHorizontal | Wire Section 12 to 24 (AWG) 3.31 to 0.205 (mm²) |