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Texas Instruments LM5140 | Demoboard PMP30267
Automotive Power Reference Design for Infotainment Systems
Overview
| Topology | Buck Converter |
| Input voltage | 10.5-40 V |
| Switching frequency | 400-2200 kHz |
| Output 1 | 3.3 V / 3 A |
| Output 2 | 7.5 V / 1.5 A |
| IC revision | C |
Description
LM5140 and LM5150 on the evaluation board.This reference design shows a complete power tree for automotive infotainment systems. The LM74700-Q1 provides reverse polarity protection to the system. The pre-booster with LM5150-Q1 provides a stable supply voltage of 10.5V during cranking for the dual-synchronous buck converter with LM5140-Q1, that provides an output voltage of 3.3V for a load current of 6.0A and an output voltage of 7.5V for a load current of 2.5A.
Features
- Automotive power system reference design
- Supports input voltage down to 3.2V
- Reverse polarity protection
- Small form factor
Typical applications
- Rear Seat Entertainment / Reconfigurable Digital Cluster / Hybrid Cluster with Active Graphics Support
More information
Products
Order Code | Datasheet | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | Mount | L(mm) | IR(A) | Working Voltage(V (AC)) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-TBL Series 4115 - 5.08 mm Screwless Horizontal Entry, 2, Screwless Push In | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 4115 - 5.08 mm Screwless Horizontal Entry | Pins2 | PCB/Cable/PanelPCB | ModularityNo | TypeHorizontal Cable Entry | Wire Section 16 to 30 (AWG) 0.5 to 1.5 (mm²) | MountTHT | Length11.16 mm | Rated Current10 A | Working Voltage300 V (AC) | Operating Temperature -30 °C up to +120 °C | |||
 | WR-PHD Pin Header - Single, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins2 | – | – | TypeStraight | – | MountTHT | Length5.08 mm | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | |||
 | WR-PHD Pin Header - Single, 3, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins3 | – | – | TypeStraight | – | MountTHT | Length7.62 mm | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C |