AP1690

Document number: DS36469 Rev. 2 - 2

1 of 9

www.diodes.com

May 2014

© Diodes Incorporated

AP1690

A Product Line of

Diodes Incorporated

SINGLE STAGE PRIMARY SIDE REGULATION PFC CONTROLLER FOR DIMMABLE LED DRIVER

Description

The AP1690 is a high performance AC/DC universal input Primary

Side Regulation Power Factor Controller for dimmable LED driver

applications.

The AP1690 provides accurate constant current (CC) regulation while

removing the opto-coupler and secondary control circuitry. It also

eliminates the need of loop compensation circuitry while maintaining

stability. The AP1690 achieves excellent regulation and high

efficiency, yet meets the requirement of IEC61000-3-2 harmonic

standard.

The AP1690 features low start-up current, low operation current and

high efficiency. It also has rich protection features including over

voltage, short circuit, over current, over temperature protection etc. In

order to regulate the output current of LED current with the phase of

dimmer, pin 2 and pin 3 are used to set the peak current of

transformer according to the voltage applied to these two pins.

The AP1690 is available in SO-8 package.

Pin Assignments

(Top View)

(SO-8/ M Package)

Features



Primary Side Control for Output Current Regulation Without Opto-

coupler and Secondary CV/CC Control Circuitry



Low Start-up Current



Good Dimmer Compatibility



Tight CC Regulation Performance for Universal Input Mains

Voltage Range



Eliminates Control Loop Compensation Circuitry



Built-in Acceleration Start



LED Open Protection



LED Short Circuit Protection



Over Temperature Protection



Over Current Protection



Cost Effective for Dimmable LED Driver Solution



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free. “Green” Device (Note 3)

Applications



Single

Stage

Power

Factor

Correction

Power

Supply

for

Dimmable LED Lighting

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html

for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-

free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

Typical Applications Circuit

VCC

DIM

PD

GND

CS

OUT

FB

LED +

LED-

L

N

R1

R2

C1

BD1

ZD1

D1

C2

C3

C4

L1

R4

R5

R3

D2

R6

C5

R7

R8

C6

R9

R10

D3

R11

R12

R13

R14

C7

R15

R16

C8

R17

R18

D4

Q1

R19

D5

R20

C9

+

Q2

3

2

6

4

7

5

8

Non-isolated

1

2

3

4

8

7

6

5

NC

PD

DIM

CS

FB

GND

OUT

VCC