The PMP7919 is a 2-phase synchronous boost converter that can take a minimum 5.5V input and put out 11.5V or higher at 15A. It is used in the Voltage Quality Module in a start-stop vehicle where warm cranking is not allowed to cause certain electronic loads (such as the head unit) to power cycle. When the start-stop vehicle goes through warm cranking, the lead acid battery voltage may dip to 6V (in the US) momentarily. The PMP7919 boost converter will, in this case, immediately respond to the transient so that its output voltage will stay in specifications, preventing downstream electronic loads from shutting down. When the battery voltage is higher than the boost converter's output regulation point (typically 11.5V), the synchronous boost converter will operate in bypass mode and leave the high-side FETs on 100%, saving extra bypass FETs and a control circuit that would be required if a non-synchronous boost converter were to be used.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Test results for the reference design, including efficiency graphs, test prerequisites and more
Detailed schematic diagram for design layout and components
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | PMP7919 Test Results | Dec. 18, 2013 |
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