Diodes AP1694A - Manual

AP1694A
Document number: DS37094 Rev. 1 - 2
1 of 15
www.diodes.com
May 2014
© Diodes Incorporated
AP1694A
A Product Line of
Diodes Incorporated
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OFFLINE, HIGH PF, HIGH EFFICIENCY DIMMABLE LED DRIVER CONTROLLER
Description
The AP1694A is a high performance AC/DC power factor corrector for
mains dimmable LED driver applications. The device uses Pulse
Frequency Modulation (PFM) technology to regulate output current
while achieving high power factor and low THD. It operates as a BCM
(Boundary Conduction Mode) controller which is good for EMI.
The AP1694A 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. It can meet the requirement of IEC6100-3-2
harmonic standard.
The AP1694A features low start-up current, low operation current. It
adopts valley on switching mode to achieve high efficiency. It also has
rich protection features including over voltage, short circuit, over
temperature protection.
The AP1694A provides the dimmable LED driver with a wide dimmer
compatibility including leading edge and trailing edge dimmer. The
AP1694A can achieve deep dimming down to 1%, while the dimming
curve is compliant with the standard of NEMA SSL6.
The AP1694A is available in SO-8 package.
Pin Assignments
(Top View)
1
2
3
4
8
7
6
5
NC
RI
SGND
CS FB
GND
OUT
VCC
SO-8
Features
 Primary Side Control for Output Current Regulation without Opto-
coupler

Boundary Conduction Mode (BCM) Operation to Achieve High-
efficiency

High PF and Low THD (PF > 0.9, THD < 30%)

High Efficiency without Dimmer
 Wide Range of Dimmer Compatibility

Dimming Curve Compliant with NEMA SSL6

Low Start-up Current
 Tight LED Current
 Tight LED Open Voltage

Valley-mode Switching to Minimize the Transition Loss

Mosfet driver up to 25W
 Easy EMI

Internal Protections:

Under Voltage Lock Out(UVLO)
 Leading-edge Blanking (LEB)
 Output Short Protection
 Output Open Protection
 Over Temperature Protection
 Flexible for Design with Small Form Factor and Very Low BOM
Cost
 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
 Halogen and Antimony Free. “Green” Device (Note 3)
Applications

Mains 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.