Power Controller. iW3609 Datasheet

iW3609 Controller. Datasheet pdf. Equivalent

iW3609 Datasheet
Recommendation iW3609 Datasheet
Part iW3609
Description AC/DC Digital Power Controller
Feature iW3609; iW3609 AC/DC Digital Power Controller for Single-Stage High Power Factor Dimmable LED Drivers 1 De.
Manufacture Dialog Semiconductor
Datasheet
Download iW3609 Datasheet




Dialog Semiconductor iW3609
iW3609
AC/DC Digital Power Controller for Single-Stage
High Power Factor Dimmable LED Drivers
1 Description
The iW3609 is a single-stage, high-performance AC/DC offline power supply controller for dimmable LED luminaires.
It applies advanced digital control technology to detect the dimmer type, which provides dynamic impedance to interface
with the dimmer and control the LED brightness at the same time.
With advanced dimmer detection technology, the iW3609 can operate with most wall dimmers including leading-edge
dimmers (R-type or R-L type) and trailing-edge dimmers (R-C type). In addition, the iW3609’s cycle-by-cycle waveform
analysis technology allows for fast dimmer setting response. When no dimmer is on the line, the iW3609 optimizes the
power factor and minimizes the current harmonic distortion to the AC line. Furthermore, in no dimmer condition, output
current is regulated at nominal output current value over a wide input voltage range.
The iW3609 operates the main power converter that delivers current to the LED load in quasi-resonant mode to
provide high power efficiency and minimize electro-magnetic interference (EMI). The commonly utilized converter
topologies for iW3609 are buck-boost and flyback. It uses Dialog’s patented PrimAccurateTM primary-side sensing
technology to achieve excellent LED current regulation under different AC line and LED load voltages, without using a
secondary-side feedback circuit and thus eliminating the need for an opto-coupler.
The iW3609 minimizes the external components count by simplifying the EMI filter with Dialog’s EZ-EMI® technology.
The intelligent dimmer detection technology minimizes the bleeding power loss. Additionally, the digital control loop of
the iW3609 maintains stable overall operating conditions without the need for loop compensation components.
2 Features
Isolated/non-isolated offline120VAC/230VAC LED driver ●● PrimAccurate primary-side sensing eliminates the
up to 15W output power
need for opto-isolator feedback
Wide line frequency range (from 45Hz to 66Hz)
Tight LED current regulation (± 5%)
Meets IEC61000-3-2 Current Harmonic requirement ●Fast start-up (< 0.5s without dimmer)
Total harmonic distortion < 20% with PF > 0.92
Compatible with NEMA SSL6 dimming curve standard
Wide dimmer compatibility
xx Leading-edge dimmer
Multiple protection features that include:
xx LED open-circuit and short-circuit protection
xx Trailing-edge dimmer
xx Over-current protection
Selectable dimming range of 1% to 100% or 10% to
xx Over-temperature protection
100%
xx Current sense resistor short-circuit protection
Resonant control to achieve high efficiency (typical > 82%
without dimmer)
xx AC line over-voltage protection
Over-temperature LED current foldback
● Optional proprietary input current shaping
Small solution size
xx Single-stage topology reduces part counts
xx 90kHz maximum switching frequency enables the
use of a small transformer
3 Applications
Dimmable LED retrofit lamps up to 15W
Dimmable LED luminaires up to 15W
Product Summary
www.dialog-semiconductor.com
Rev. 1.0
1 of 6
27-Jun-2016
© 2016 Dialog Semiconductor



Dialog Semiconductor iW3609
iW3609
AC/DC Digital Power Controller for Single-Stage
High Power Factor Dimmable LED Drivers
AC Input
iW3609
1 BLEEDER
2 VIN
VCC 8
VSENSE 4
3 IIN
OUTPUT 6
7 GND
ISENSE 5
Figure 3.1 : iW3609 Simplified Application Circuit
-
Output
+
Product Summary
www.dialog-semiconductor.com
Rev. 1.0
2 of 6
27-Jun-2016
© 2016 Dialog Semiconductor



Dialog Semiconductor iW3609
iW3609
AC/DC Digital Power Controller for Single-Stage
High Power Factor Dimmable LED Drivers
4 Pinout Description
iW3609
1 BLEEDER
VCC 8
2 VIN
GND 7
3 IIN
OUTPUT 6
4 VSENSE
ISENSE 5
Figure 4.1 : 8 Lead SOIC Package
Pin No.
1
2
3
4
5
6
7
8
Pin Name
BLEEDER
VIN
IIN
VSENSE
ISENSE
OUTPUT
GND
VCC
Type
Output
Pin Description
Gate drive for Bleeder switch
Analog Input Rectified AC line voltage sense
Analog Input Rectified AC line current sense
Analog Input Auxiliary winding voltage sense
Analog Input Primary side current sense
Output
Base drive for main BJT switch
Ground
Ground
Power
Power supply for control logic
Product Summary
www.dialog-semiconductor.com
Rev. 1.0
3 of 6
27-Jun-2016
© 2016 Dialog Semiconductor







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