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Texas Instruments LM25122 | Demoboard TIDA-01534

Automotive Off-battery Dual-phase Boost Converter Reference Design

Overview

TopologyBoost Converter
Input voltage6-20 V
Output 112 V / 1.75 A
Output 212 V / 1.75 A
IC revisionA

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

Products

Order Code Data­sheet Downloads Product seriesApplicationPCB/Cable/PanelModularityWire SectionPinsRowsH
(mm)
GenderTypeIR
(A)
Packaging Samples
691101710002SPEC
6 files WR-TBL Series 101 - 5.00 mm Horizontal Entry Modular Wire Protector PCB Yes 26 to 14 (AWG) 0.5 to 2.5 (mm²) 2 12.6 Horizontal 16 Box
61300211121SPEC
6 files WR-PHD 2.54 mm THT Pin Header 2 Single Pin Header Straight 3 Bag
61300311121SPEC
6 files WR-PHD 2.54 mm THT Pin Header 3 Single Pin Header Straight 3 Bag
Samples
Order Code Data­sheet Downloads Product seriesApplicationPCB/Cable/PanelModularityWire SectionPinsRowsH
(mm)
GenderTypeIR
(A)
Packaging Samples