AP1695

Document number: DS37312 Rev. 1 - 2

1 of 15

www.diodes.com

June 2014

© Diodes Incorporated

AP1695

A Product Line of

Diodes Incorporated

OFFLINE, HIGH PF, HIGH EFFICIENCY DIMMABLE LED DRIVER IC

Description

The AP1695 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) which is good for EMI.

The AP1695 internally integrates a 500V high voltage MOSFET which

can realize a lower BOM cost. The AP1695 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 AP1695 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 AP1695 provides the dimmable LED driver with a wide dimmer

compatibility including leading edge and trailing edge dimmer. The

AP1695 can achieve deep dimming down to 1%, while the dimming

curve is compliant with the standard of NEMA SSL6.

The AP1695 is available in SO-7 package.

Pin Assignments

(Top View)

1

2

3

4

7

6

5

S

CS

RI

GND

FB

VCC

Drain

SO-7

Features



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



Internal Integrated 2A/500V MOSFET can Cover up to 10W



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 Ant

imony 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 i

nformation 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.