Datasheet

ELECTRICAL SPECIFICATIONS @ 25°C unless otherwise noted:

D.C. RESISTANCE (@20°C ): 3-1 , 7.37 Ohms ±10%.

5-4 , 0.605 Ohms ±10%.

6-7 , 0.625 Ohms ±10%.

DIELECTRIC RATING: 3000VAC, 1 minute tested by applying 3750VAC for 1 second between pins 3-7 (tie 1+5).

INDUCTANCE: 3.2 mH ±10%, 10kHz, 100mVAC, 0mADC, 3-1, Ls.

LEAKAGE INDUCTANCE: 50µH nom., 75µH max.,100kHz, 100mVAC, 3-1 (tie 5+4, 6+7), Ls.

SATURATION CURRENT:

520mA saturating current that causes 20% rolloff from initial inductance.

TURNS RATIO: (3-1 ):( 5-4 ), ( 11.2 ):(1.00), ±1%.

( 3-1 ):( 7-6 ), ( 5.6 ):(1.00), ±1%.

( 3-2 ):( 2-1 ), ( 1 ):(1.00), ±1%.

Designed to comply with the following requirements as defined by IEC60950-1, EN60950-1, UL60950-1/CSA60950-1

and AS/NZS60950.1: - Reinforced insulation for a primary circuit at a working voltage of 400VDC.

OPERATING TEMPERATURE RANGE: -40°C to 125°C including temp. rise.

T_0_5472

WE-Midcom, Inc.

Unless otherwise specified, tolerances are as follows:

Angles: ±1° Fractions: ±1/64

Decimals:±.005(.127mm)

WE-Midcom, Inc.

Watertown, SD USA

Drawing Title Drawing Number Rev.

Toll Free: 800-643-2661

Fax: 605-886-4486

Transformer

750815047

This drawing is dual dimensioned.

Dimensions is brackets are in millimeters

Revisions: See Sheet 1

Scale ---- Spec Sheet 1 of 1

Engineer:JJB 06/26/2012

PRI

185-265VDC

70kHz

AUX

15VDC, 20mADC

SEC

30VDC, 280mADC

750815047

www.ti.com

Performance Data and Typical Characteristic Curves

7.13 Transformer Specification

Figure 28. Transformer Specification

SLUU978–June 2012 LM3447-A19-230VEVM is a Phase-Dimmable, Primary-Side Regulated LED

Driver

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