DC/DC Converter 206-454VDC 1KW
Terms and Conditions
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A 1 kW DC to DC converter that takes high voltage from the traction pack and produces a regulated 14 V for the vehicle's ordinary electrics. This is the 206 to 454 V unit, sized for a nominal 320 V pack, and it comes with the connectors and pins already in the box.
A conversion still needs a 12 V system. Lights, wipers, the BMS, contactor coils, the instrument cluster and the vehicle controller all run from it, and once the alternator has gone with the engine, something has to keep the auxiliary battery charged. That is this converter's job: it sits across the high voltage bus and holds the 12 V side at 14.0 V, which is the voltage a lead acid or lithium auxiliary battery actually wants to see. At 72 A continuous it will run a full vehicle load and charge the auxiliary battery at the same time, and it holds that voltage to within 1 percent rather than drifting with pack state of charge.
Key specifications
| Manufacturer part | TDC-IY-320-12 |
|---|---|
| Type | Isolated DC to DC converter, high voltage to 12 V system |
| Input voltage | 206 V to 454 V DC |
| Maximum input current | 18 A |
| Output voltage | 14.0 V DC, constant voltage mode |
| Constant voltage accuracy | Plus or minus 1 percent |
| Rated output current | 72 A |
| Maximum output current | 85 A |
| Output power | 1,000 W |
| Control | 12 V enable or CAN bus, specified when you order |
| Dimensions | 278 x 159 x 93 mm |
| Documentation | CAN protocol and a STEP model in the Documents tab |
Features
- 72 A continuous is enough to run a whole vehicle's 12 V load and charge the auxiliary battery at the same time
- Holds 14.0 V to within 1 percent regardless of where the traction pack is in its charge, so the auxiliary battery sees a proper charging voltage
- Connectors and pins are supplied, so it can be wired without chasing a separate connector kit
- Choose 12 V enable if you want it switched by a simple signal, or CAN if the vehicle controller should manage it
- Wide 206 to 454 V input, which covers a nominal 320 V pack from fully discharged to fully charged
- A STEP model is published, so it can be packaged into a build before anything is ordered
Compatibility
This is the 320 V unit. The same converter is made for four other pack voltages at the same price, so pick by where your pack actually sits:
| 44 to 97 V | For a nominal 72 V pack |
|---|---|
| 74 to 162 V | For a nominal 108 V pack, sold separately as 12 V enable or CAN |
| 103 to 227 V | For a nominal 144 V pack |
| 206 to 454 V | For a nominal 320 V pack, this converter |
Say 12 V enable or CAN when you order this one, because the control type is set at the factory. If you are using CAN, the protocol document in the Documents tab gives the message format.
In the box
- 1 x DC to DC converter
- Connectors and pins
High voltage cable, fusing and the 12 V side wiring are not included.
Downloads
The CAN protocol document and a STEP model are in the Documents tab above. The 3D model on this page is the same geometry.
Worldwide Shipping
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We are fully certified to ship dangerous goods, including lithium-ion batteries, in compliance with all international regulations.
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3D model
Drag to rotate. Use the buttons to zoom, or pinch on a touch screen.