TDK DC - DC Converter Step-Up?

Power
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1

HI All,

I need a reliable DC - DC Converter that can handle around 150W or so (maybe 10 - 15 Amps - more is fine), to step 12.7 VDC up to 14.5 - 15 VDC. i.e. boost input from one static 12V lead-acid battery to a second 12V battery to run ignition on a race engine running without an alternator.

I thought TDK I6A4W series might work but they are identified as step-down converters despite the Vin and Vout seeming fit the bill…?

Advice on this or alternatives that require no more building up than I6A4W or that are even plug-and-play will be appreciated. John Hansen - Gosfield Engineering AU.

2

Hello John:

Welcome to the Tech Forum! I came up with basically the same options that you found: the IA6 series. There are a few more options you can take a look at on that link.

3

Thanks Jenny,
Much appreciated. Looking at it a bit harder though, TDK’s IA6 product sheets say that output voltage cannot exceed input voltage so it looks like I’ll need another solution to step up from 12V to 14.5.

4

Hi John,

Here are a few other items to consider:

Isolated board-mount DC-DC modules, such as this one:

Off-board isolated DC-DC modules, such as this one:

Non-isolated board-mount buck-boost converters, such as this:

The I7C4W012A050V-003-R requires several external components for proper operation. We also offer an evaluation board with this module mounted which contains those external components.

5

Thanks David,
I ordered VHK200W-Q24-S15 - received 4 days later as advertised - (awesome service).
Great device too - does exactly what I need.

Much appreciated - John Hansen, Gosfield Engineering AU.