LM5017 Flybuck Quad Isolated Output Power Supply without Opto-coupler

(ACTIVE) PMP7993

Description & Features

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Description

The LM5017 Flybuck reference design provides multiple isolated outputs to supply the bias voltage needed in a PLC I/O module. It generates 4 isolated outputs: ±15V@50mA and ±5V@100mA; it can cover most of the required voltage rails in the I/O module, such as the OP-AMP, DAC bias, RS-485 transmitter and digital isolator power supplies. In the Flybuck, the regulation is done on the primary side, and thus no opto-coupler is needed. The overall load/line regulation for each output is within +/-5%. The input voltage range is from 17V to 32V.

Features
  • Ideal for PLC I/O modules, or industrial applications requiring multiple bias supplies
  • Quad isolated outputs,  +/-15V@50mA, +/-5V@100mA
  • Designed for an operating range of 17-32V
    • Uses the LM5017 capable of 9 to 100V Input operation for withstanding transients and surge voltage
  • +/-5% Vout regulation accuracy across line and load variations
  • Tested and supported with design files, reference board available upon request


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 PMP7993.1
(Output Voltage 1)
PMP7993.2
(Output Voltage 2)
PMP7993.3
(Output Voltage 3)
PMP7993.4
(Output Voltage 4)
Vin (Min) (V)17171717
Vin (Max) (V)32323232
Vout (Nom) (V)15-155-5
Iout (Max) (A).05.05.1.1
Output Power (W).75.75.5.5
Isolated/Non-IsolatedIsolatedIsolatedIsolatedIsolated
Input TypeDCDCDCDC
TopologyFlybuckFlybuckFlybuckFlybuck

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
LM5017  7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (3)
Title Abstract Type Size (KB) Date Views
PDF 884 12 Sep 2013 31
PDF 884 12 Sep 2013 15
PDF 884 12 Sep 2013 524
White papers (1)
Title Abstract Type Size (KB) Date Views
PDF 980 29 Sep 2015 474
Design files (5)
Title Abstract Type Size (KB) Date Views
ZIP 163 14 Apr 2014 34
PDF 884 12 Sep 2013 17
PDF 205 12 Sep 2013 29
PDF 24 12 Sep 2013 80
PDF 121 12 Sep 2013 313
More literature (2)
Title Abstract Type Size (KB) Date Views
PDF 552 13 Mar 2015 353
PDF 783 21 Aug 2014 353


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