Diodes AP1694 User Manual
Ap1694, New prod uc t, Description
AP1694
Document number: DS36522 Rev.
2 - 2
1 of 9
December 2013
© Diodes Incorporated
AP1694
A Product Line of
Diodes Incorporated
NEW PROD
UC
T
OFFLINE, HIGH PF, HIGH EFFICIENCY DIMMABLE LED DRIVER CONTROLLER
Description
The AP1694 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 AP1694 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 AP1694 features low start-up current, low operation current. It
adopts dynamic base driver control technology and valley on
switching mode to achieve high efficiency. It also has rich protection
features including over voltage, short circuit, over temperature
protection.
The AP1694 provides the dimmable LED driver with a wide dimmer
compatibility including leading edge and trailing edge dimmer. The
AP1694 can achieve deep dimming down to 1%, while the dimming
curve is compliant with the standard of NEMA SSL6.
The AP1694 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
•
Boundary Conduction Mode (BCM) Operation to Achieve High-
efficiency
•
High PF and Low THD
•
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
•
BJT Transistor Driver
•
Dynamic Base Driver Control
•
Valley-mode Switching to Minimize the Transition Loss
• 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. S 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.
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2
3
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8
7
6
5
NC
RI
SGND
CS
FB
GND
OUT
VCC