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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
NEW PROD UCT
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
R
15
R16
C8
R17
R18
D4
Q1
R19
D5
R20
C9
+
Q2
AP1690
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
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