700V-860V input to 16.5V@0.5A output PMP7769 (ACTIVE)

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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.


Parametrics
 PMP7769.1
(Output Voltage 1)
Vin (Min) (V)700
Vin (Max) (V)860
Vout (Nom) (V)16.5
Iout (Max) (A).5
Output Power (W)8.25
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyFlyback- Non Sync

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  AC-DC current mode PWM controller  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM5021 Download Download
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Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 185 09 Jan 2012
Design files (2)
Title Type Size (KB) Date
PDF 96 09 Jan 2012
PDF 180 09 Jan 2012

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