Datasheet Texas Instruments LM34927

ManufacturerTexas Instruments
SeriesLM34927
Datasheet Texas Instruments LM34927

7.5-100V Wide Vin, 600mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters

Datasheets

LM34927 Integrated Secondary-Side Bias Regulator for Isolated DC-DC Converters datasheet
PDF, 3.0 Mb, Revision: G, File published: Dec 9, 2014
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Prices

Status

LM34927MR/NOPBLM34927MRX/NOPBLM34927SD/NOPBLM34927SDX/NOPB
Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityYesYesNoYes

Packaging

LM34927MR/NOPBLM34927MRX/NOPBLM34927SD/NOPBLM34927SDX/NOPB
N1234
Pin8888
Package TypeDDADDANGUNGU
Industry STD TermHSOICHSOICWSONWSON
JEDEC CodeR-PDSO-GR-PDSO-GS-PDSO-NS-PDSO-N
Package QTY95250010004500
CarrierTUBELARGE T&RSMALL T&RLARGE T&R
Device MarkingL34927L34927L34927L34927
Width (mm)3.93.944
Length (mm)4.894.8944
Thickness (mm)1.481.48.8.8
Pitch (mm)1.271.27.8.8
Max Height (mm)1.71.7.8.8
Mechanical DataDownloadDownloadDownloadDownload

Parametrics

Parameters / ModelsLM34927MR/NOPB
LM34927MR/NOPB
LM34927MRX/NOPB
LM34927MRX/NOPB
LM34927SD/NOPB
LM34927SD/NOPB
LM34927SDX/NOPB
LM34927SDX/NOPB
Iout, A0.60.60.60.6
Package GroupSO PowerPADSO PowerPADWSONWSON
Package Size: mm2:W x L, PKG8SO PowerPAD: 29 mm2: 6 x 4.9(SO PowerPAD)8SO PowerPAD: 29 mm2: 6 x 4.9(SO PowerPAD)See datasheet (WSON)See datasheet (WSON)
RatingCatalogCatalogCatalogCatalog
Soft StartNoneNoneNoneNone
Special FeaturesAdjustable UVLO,EnableAdjustable UVLO,EnableAdjustable UVLO,EnableAdjustable UVLO,Enable
Switching Frequency(Max), kHz1000100010001000
Switching Frequency(Min), kHz150150150150
TopologyFlybuckFlybuckFlybuckFlybuck
TypeConverter (Integrated Switch)Converter (Integrated Switch)Converter (Integrated Switch)Converter (Integrated Switch)
Vin(Max), V100100100100
Vin(Min), V9999
Vout(Max), V90909090
Vout(Min), V1.2251.2251.2251.225

Eco Plan

LM34927MR/NOPBLM34927MRX/NOPBLM34927SD/NOPBLM34927SDX/NOPB
RoHSCompliantCompliantCompliantCompliant

Application Notes

  • Fly-Buck(TM) converter provides EMC and isolation in PLC applications
    PDF, 201 Kb, File published: Jan 29, 2015
  • AN-2202 LM34927 Integrated Bias Regulator for Isolated DC Convtr (Rev. A)
    PDF, 1.2 Mb, Revision: A, File published: Apr 23, 2013
    An isolated bias supply is implemented in this evaluation board with LM34927 Constant-On-Timeregulator. The LM34927 regulator integrates both the high and low side power switches essential forcreating isolated buck converter.The board specifications are as follows:Input Range: 20 V to 100 VPrimary Output Voltage: 10 VSecondary (Isolated) Output Voltage: 9.5
  • AN-2292 Designing an Isolated Buck (Fly-Buck) Converter (Rev. C)
    PDF, 870 Kb, Revision: C, File published: Dec 17, 2014
    In many applications, one or more low-cost, simple to use, isolated power supplies working from input voltages up to 100 V are needed. Traditional solutions use flyback converters to generate this bias supply. Flyback designs typically utilize asymmetric transformers turns ratios for primary and secondary power windings, with an optocoupler and reference, or an auxiliary winding for feedback regul

Model Line

Manufacturer's Classification

  • Semiconductors> Power Management> Offline and Isolated DC/DC Controllers and Converters> Isolated DC/DC Converter
EMS supplier