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AP1694AEV10

120VAC Triac Dimmable GU10 LED Driver

Diodes Incorporated. 

AP1694AEV10 User Guide

120VAC Triac Dimmable GU10 LED Driver

DIODES TAPPED TRANSFORMER DESIGN

AP1694A 120VAC Buck tapped 12V 400mA Transformer Spec

1) Bobbin

EEP10 4+4 pin

1

WD2: Primary

30#*1, 50Ts

6

6

WD1: P r i m a r y

34#*1, 74Ts

2

WD3: Auxiliary 36#1, 86Ts

7

5

2) Transformer Parameters

1. Primary Inductance (Pin1‐Pin7, all other windings are open)

Lp = 0.6mH ±5%@1kHz

2. Primary Winding Turns: NP=74Ts(Pin7‐Pin6) +50Ts(Pin6toPin1)

3. Auxiliary Winding Turns (Pin2‐ Pin5): NA= 86Ts (Pin 2 to Pin 5)

3) Transformer Winding Construction Diagram

Winding

Number

1

2

3

4

Windings

WD1‐Primary

Winding

WD2‐Primary

Winding

Insulation

WD3‐Auxiliary

Winding

Insulation

Winding

Specification

Start at Pin 7, wind 74 turns of single Φ34# wire and finish on Pin 6.

Start at Pin 6, wind 50 turns of single Φ30# wire and finish on Pin 1.

2 Layers of insulation tape

Start at Pin 2, wind 86 turns of single Φ36# wire and finish on Pin 5.

2 Layers of insulation tape

AP1694AEV10 Rev2

July 2015

www.diodes.com

Page 3 of 10

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