Diodes AP1690 User Manual

AP1690

Document number: DS36469 Rev. 2 - 2

1 of 9

www.diodes.com

May 2014

© Diodes Incorporated

AP1690

A Product Line of

Diodes Incorporated

NE W P R OD U C T

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

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

1

2

3

4

8

7

6

5

NC
PD

DIM

CS

FB

GND

OUT

VCC

SINGLE STAGE PRIMARY SIDE REGULATION PFC CONTROLLER FOR DIMMABLE LED DRIVER

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

Non-isolated

AP1690

Document number: DS36469 Rev. 2 - 2

2 of 9

www.diodes.com

May 2014

© Diodes Incorporated

AP1690

A Product Line of

Diodes Incorporated

NE W P R OD U C T

VCC

DIM

PD

GND

CS

OUT

FB

L

N

LED+

LED-

R1

C1

AP1690

ZD1

BD1

D1

L1

R2

C2

R3

C3

C4

R4

R5

R6

C5

D2

D3

R7

C6

R8

R9

R10

R11

C7

R12

R13

R14

R15

R16

R17

C8

C9

D4

D5

R18

R

19

R20

Q1

D6

C10

R21

CY1

T1

Q2

+

3

2

6

4

7

5

8

Pin Number

Pin Name

Function

1

NC

No connection

2

PD

The rectified input voltage sensing pin. The pin is detecting the phase of dimmer

3

DIM

The rectified input voltage sensing pin. The pin is detecting the average AC input voltage

4

CS

Primary current sensing

5

FB

This pin captures the feedback voltage from the auxiliary winding. FB voltage is used to control no
load output voltage and determine acceleration stop point at start-up phase

6

GND

Ground. Current return for gate driver and control circuits of the IC

7

OUT

Gate driver output

8

VCC

Supply voltage of gate driver and control circuits of the IC

Typical Applications Circuit (Cont.)

Isolated

Pin Descriptions

AP1690

Document number: DS36469 Rev. 2 - 2

3 of 9

www.diodes.com

May 2014

© Diodes Incorporated

AP1690

A Product Line of

Diodes Incorporated

NE W P R OD U C T

Regulator

&

Bias

OVP

Tonsec

Detector

0.1V

1.8V

PFM

Tons

UVLO

COMP

EA

UVLO

pro

CV_CTRL

PFM

Driver

R Q

S

R

Q

S

CC_CTRL

FB

CS

PD

VCC

OUT

GND

Acceleration Start

Control

Peak Current Control

& LEB

Dimming Control

DIM

2

3

4

5

6

7

8

Symbol

Parameter

Rating

Unit

VCC

Power Supply Voltage

-0.3 to 30

V

I

OUT

Driver Output Current

300

mA

VPD, V

DIM

, VCS

Voltage at PD, DIM, CS

-0.3 to 7

V

VFB

FB Input Voltage

-40 to 10

V

TJ

Operating Junction Temperature

+150

ºC

T

STG

Storage Temperature

-65 to +150

ºC

T

LEAD

Lead Temperature (Soldering, 10 sec)

+300

ºC

PD

Power Dissipation at TA = +50C

0.65

W

θ

JA

Thermal Resistance (Junction to Ambient)

190

C/W

–

ESD (Machine Model)

200

V

–

ESD (Human Body Model)

3000

V

Functional Block Diagram

Absolute Maximum Ratings (Note 4)

Note 4: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are str ess ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied.
Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.