700V-860V input to 16.5V@0.5A output
PMP7769
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Description
Circuit is a non isolated flyback converter. Vin is 700V to 800V max, converting to 16.5V out at a maximum current of 500mA. The design utilizes an external Error amplifier using an LMC7101 for feedback control. The circuit also uses U102 and Q101(and resistors etc etc…) as an external UVLO circuit.
LM5021 features include an ultra-low (25 µA) start-up current, which minimizes power losses in the high voltage start-up network. A skip cycle mode reduces power consumption with light loads for energy conserving applications.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
TI Devices (1)
Order samples, get tools and find more information on the TI products in this reference design.
| Part Number |
Name |
Product Family |
Sample & Buy |
Design Kits & Evaluation Modules |
| LM5021 |
30V, 1MHZ current mode PWM controller |
Offline & isolated DC/DC controllers & converters |
Sample & Buy |
Not Available |
CAD/CAE symbols
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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Step 3: Open the .bxl file with the Ultra Librarian software.
You can always access the complete CAD/CAE Symbols database at https://webench.ti.com/cad/
Both PCB footprints and schematic symbols are available for download in a vendor neutral format, which can then be exported to the leading EDA CAD/CAE design tools using the Ultra Librarian Reader. The reader is available as a (free download.).
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Technical documentation
See the Important Notice and Disclaimer covering reference designs and other TI resources.
User guide (1)
| Title | Type | Size (KB) | Date |
| | PDF | 185 |
09 Jan 2012
|
Design files (2)
| | PDF | 96 |
09 Jan 2012
|
| | PDF | 180 |
09 Jan 2012
|
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