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reference designLM5017MR | Demoboard PMP7993

Texas Instruments LM5017MR | Demoboard PMP7993

LM5017 Flybuck Quad Isolated Output Power Supply without Opto-coupler

Overview

TopologyFlyBuck (Double Buck)
Input voltage17-32 V
Output 115 V / 0.05 A
Output 2-5 V / 0.1 A
Output 35 V / 0.1 A
Output 4-15 V / 0.05 A

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

Remark: BOM pdf is added with EVM and Schematic Diagram pdf

FeaturesIdeal for PLC I/O modules, or industrial applications requiring multiple bias suppliesQuad isolated outputs, +/-15V@50mA, +/-5V@100mADesigned 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 variationsTested and supported with design files, reference board available upon request

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
VIN(V)
VOut1(V)
IOut1(mA)
VOut2(V)
IOut2(mA)
VOut3(V)
IOut3(mA)
VOut4(V)
IOut4(mA)
Vbuck(V)
L(µH)
NPRI : NSEC
ISAT(A)
LS(nH)
VT(V (AC))
fswitch(kHz)
Mount
L(mm)
W(mm)
H(mm)
SamplesAvailability & Sample
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750313995
SPECWE-IBTI Isolated Buck Transformers, 15 - 40, 15 V
Simu­lation
Availability
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Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-IBTI Isolated Buck Transformers
Input Voltage 15 - 40
Output Voltage 115 V
Output Current 150 mA
Output Voltage 25 V
Output Current 2100 mA
Output Voltage 35 V
Output Current 3100 mA
Output Voltage 415 V
Output Current 450 mA
Buck Voltage7.8 V
Inductance50 µH
Turns Ratio1.5:1:1:2:2 
Saturation Current1.5 A
Leakage Inductance260 nH
Insulation Test Voltage1500 V (AC)
Switching Frequency 300 - 600
MountSMT 
Length13.46 mm
Width17.75 mm
Height12.7 mm
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