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Texas Instruments LMR38020-Q1 | Demoboard TIDA-020061
Automotive power over data lines PD reference design for 100/1000Base-T1 Ethernet applications
Overview
| Topology | Buck Converter |
| Input voltage | 42-80 V |
| Output 1 | 2 A |
| IC revision | FEBRUARY 2024 |
Description
This reference design implements a powered device (PD) to demonstrate Power over Data Lines (PoDL) in automotive applications. The design uses a DP83TG720S-Q1 1000MBit/s single-pair Ethernet (SPE) PHY with the option to switch to the DP83TC812S-Q1 SPE PHY for 100MBit/s operation. A coupling and decoupling network is used to split the data and power on the single-pair ethernet (SPE) cable.
Features
- Capable of 1000Base-T1 automotive Ethernet
- Footprint compatible to our 100Base-T1 SPE PHY
- This design features the implementation of the powered device to be powered via the single-pair ethernet cable
- Automotive qualified filter network for power coupling and decoupling with reverse polarity protection
- Implementation of PoDL according to the automotive market requirements by reducing cost and complexity of the implementation
Typical applications
- Mechanincally scanning LIDAR
- Long range Ragdar
- ADAS
- Radar ECU
- Rear camera
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | ISAT (A) | RDC max. (mΩ) | fres (MHz) | Mount | Pins (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7847714330 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PDA SMT Shielded Power Inductor | 33 | 3 | 95 | 8.4 | SMT | – | – | 5 | – | – | 2.92 | – | ||
 | 61300111121 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | THT | 1 | Single | – | Pin Header | Straight | 3 | Bag |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7847714330 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | |
| 61300111121 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | ISAT (A) | RDC max. (mΩ) | fres (MHz) | Mount | Pins (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples |
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