Low-cost Universal AC-DC Input Non-isolated Buck Conv using BJT for 12V/0.2A Output Reference Design
Description
The PMP9707 reference design uses Buck converter to convert universal AC input voltage (85Vac to 265Vac) to a 12V/200mA DC output with UCC28722 controller. BJT is applied to the buck switch for cost optimization: and simplicity is achieved with bulit-in sample and hold regulation function in UCC28722.
Features
- Universal AC Input Wide Vin capability (85Vac to 265Vac)Simple: Low cost solution with BJT employed as Buck switchSmall 14.6mm2 two layer PCB footprint with 24 BOM components (excluding test points)Conducted EMI tested (confirms EN550022 and CISPR-22 Class B)
Applications
- Gas detector
Product Categories
- Power management
| Application Area | End Equipment |
|---|---|
| Gas detector | https://www.ti.com/solution/gas-detector#referencedesigns |
| Download the bill of materials for PMP9707 | Download |
Design File
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Download the design file for PMP9707Test Data
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Download the test file for PMP9707| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| PMP9707 Schematic (Rev. A) | 06 May 2015 | 111 | ||
| PMP9707 BOM (Rev. A) | 06 May 2015 | 105 | ||
| PMP9707 Gerber | 10 Dec 2014 | ZIP | 188 |