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Diodes AP1690 User Manual

Description, Pin assignments, Features

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AP1690

Document number: DS36469 Rev.

2 - 2

1 of 9

www.diodes.com

May 2014

© Diodes Incorporated

AP1690

A Product Line of

Diodes Incorporated

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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

A

P

1

6

9

0

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