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Texas Instruments LM5017 | Demoboard PMP9419
Isolated triple-output Fly-Buck Bias for PLC applications
Overview
| Topology | Flyback Converter |
| Input voltage | 17-36 V |
| Output 1 | 5 V / 0.1 A |
| Output 2 | 10.4 V |
| Output 3 | -15 V / 0.1 A |
| Output 4 | 15 V / 0.1 A |
| IC revision | E1 |
Description
The PMP9419 reference design is a 3-output isolated Fly-Buck power supply for PLC applications. It takes 24V nominal input and provides 3 isolated sets of bias voltage, which are +15V@100mA, -15V@30mA, and 5V@17mA. Each set of rails is generated from one single transformer windings on the secondary side. A compact solution size is achieved (55.3mmx43.8mm). The design features the LM5017 synchronous buck converter configured as a Fly-Buck regulator. With the benefit of primary side regulation, the supply has the outputs regulated without the opto-coupler or additional transformer winding. The LM5017 has a wide Vin range which is up to 100V and 600mA output current capability with integrated switch FETs.
Features
- Three isolated outputs, +15V@100mA, -15V@30mA, 5V@17mA
- Fly-Buck converter design, primary side regulation, compact solution for multiple isolated output supply
- 81% peak efficiency.
- LM5017 sync buck regulator, up to 100V wide Vin range, 600mA capability
- This circuit board is tested, and the design files and test report are included.
Typical applications
- PLC
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | VIN | VOut1(V) | IOut1(mA) | VOut2(V) | IOut2(mA) | VOut3(V) | IOut3(mA) | Vaux(V) | L(µH) | NPRI : NSEC | VT(V (AC)) | fswitch(kHz) | Mount | L(mm) | W(mm) | H(mm) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-TBL Series 2141 - 3.50 mm Horiz. Entry Modular, 2, Rising Cage Clamp | Simulation– | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 2141 - 3.50 mm Horiz. Entry Modular | Pins2 | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 24 to 16 (AWG) 0.2 to 1 (mm²) | – | – | – | – | – | – | – | – | – | – | – | – | MountTHT | Length7.05 mm | – | – | ||
| WR-TBL Series 2141 - 3.50 mm Horiz. Entry Modular, 3, Rising Cage Clamp | Simulation– | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 2141 - 3.50 mm Horiz. Entry Modular | Pins3 | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 24 to 16 (AWG) 0.2 to 1 (mm²) | – | – | – | – | – | – | – | – | – | – | – | – | MountTHT | Length10.5 mm | – | – | ||
 | WE-IBTI Isolated Buck Transformers, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-IBTI Isolated Buck Transformers | – | – | – | – | – | Input Voltage 18 - 24 V (DC) | Output Voltage 115 V | Output Current 1150 mA | Output Voltage 25 V | Output Current 2100 mA | Output Voltage 315 V | Output Current 3150 mA | Auxiliary Voltage5 V | Inductance50 µH | Turns Ratio2 : 3 : 1 : 3.2 : 1 | Insulation Test Voltage1500 V (AC) | Switching Frequency 200 - 400 | MountSMT | Length12.95 mm | Width12.85 mm | Height6.35 mm |