Datasheet Texas Instruments LM34927

Manufacturer	Texas Instruments
Series	LM34927

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

Datasheets

PDF, 3.0 Mb, Revision: G, File published: Dec 9, 2014

Extract from the document

	LM34927MR/NOPB	LM34927MRX/NOPB	LM34927SD/NOPB	LM34927SDX/NOPB
Lifecycle Status	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)
Manufacture's Sample Availability	Yes	Yes	No	Yes

	LM34927MR/NOPB	LM34927MRX/NOPB	LM34927SD/NOPB	LM34927SDX/NOPB
N	1	2	3	4
Pin	8	8	8	8
Package Type	DDA	DDA	NGU	NGU
Industry STD Term	HSOIC	HSOIC	WSON	WSON
JEDEC Code	R-PDSO-G	R-PDSO-G	S-PDSO-N	S-PDSO-N
Package QTY	95	2500	1000	4500
Carrier	TUBE	LARGE T&R	SMALL T&R	LARGE T&R
Device Marking	L34927	L34927	L34927	L34927
Width (mm)	3.9	3.9	4	4
Length (mm)	4.89	4.89	4	4
Thickness (mm)	1.48	1.48	.8	.8
Pitch (mm)	1.27	1.27	.8	.8
Max Height (mm)	1.7	1.7	.8	.8
Mechanical Data	Download	Download	Download	Download

Parameters / Models	LM34927MR/NOPB	LM34927MRX/NOPB	LM34927SD/NOPB	LM34927SDX/NOPB
Iout, A	0.6	0.6	0.6	0.6
Package Group	SO PowerPAD	SO PowerPAD	WSON	WSON
Package Size: mm2:W x L, PKG	8SO 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)
Rating	Catalog	Catalog	Catalog	Catalog
Soft Start	None	None	None	None
Special Features	Adjustable UVLO,Enable	Adjustable UVLO,Enable	Adjustable UVLO,Enable	Adjustable UVLO,Enable
Switching Frequency(Max), kHz	1000	1000	1000	1000
Switching Frequency(Min), kHz	150	150	150	150
Topology	Flybuck	Flybuck	Flybuck	Flybuck
Type	Converter (Integrated Switch)	Converter (Integrated Switch)	Converter (Integrated Switch)	Converter (Integrated Switch)
Vin(Max), V	100	100	100	100
Vin(Min), V	9	9	9	9
Vout(Max), V	90	90	90	90
Vout(Min), V	1.225	1.225	1.225	1.225

	LM34927MR/NOPB	LM34927MRX/NOPB	LM34927SD/NOPB	LM34927SDX/NOPB
RoHS	Compliant	Compliant	Compliant	Compliant

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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
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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

Series: LM34927 (4)

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