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Texas Instruments LM25122 | Demoboard TIDA-01534
Automotive Off-battery Dual-phase Boost Converter Reference Design
Overview
| Topology | Boost Converter |
| Input voltage | 6-20 V |
| Output 1 | 12 V / 1.75 A |
| Output 2 | 12 V / 1.75 A |
| IC revision | A |
Description
This reference design is a high power, wide input voltage range circuit that uses synchronous boost controllers in a dual-phase configuration outputting four (4) switchable 12-V rails that each can supply up to 2.5 A with diagnostic features; plus a dual synchronous buck that generates two high current, lower voltage rails.
Features
- Wide input voltage range of 9V to 20V, support transient down to 6V and up to 36V
- Dual-phase high current synchronous boost controllers configuration with > 98% efficiency under typical operating conditions
- Dual high-current synchronous outputs: 5V, 3A nominal; 3.8V, 6.5A nominal
- Reverse battery protection with zero IQ smart diode controller
- Minimized AM radio band interference
Typical applications
- Voltage Conditioning Module
- Aftermarket Head Unit
More information
Products
Order Code | Datasheet | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | Mount | L(mm) | H(mm) | IR(A) | Working Voltage(V (AC)) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 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-TBL Series 101 - 5.00 mm Horizontal Entry Modular, 2, Wire Protector | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 101 - 5.00 mm Horizontal Entry Modular | Pins2 | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 26 to 14 (AWG) 0.5 to 2.5 (mm²) | MountTHT | Length10 mm | Height12.6 mm | Rated Current16 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 |