iW3610 Datasheet PDF - iWatt
Part Number | iW3610 | |
Description | AC/DC Digital Power Controller | |
Manufacturers | iWatt | |
Logo | ||
There is a preview and iW3610 download ( pdf file ) link at the bottom of this page. Total 17 Pages |
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AC/DC Digital Power Controller for Dimmable LED Drivers
1.0 Features
2.0 Description
●● Isolated AC/DC offline 100 Vac / 230 Vac
●● Line frequency ranges from 47 Hz to 64 Hz
●● Intelligent wall dimmer detection
xx Leading-edge
xx Trailing-edge
xx No-dimmer detected
xx Unsupported dimmer
●● Hybrid dimming scheme
●● Wide dimming range from 2% up to 100%
●● No visible flicker
●● Resonant control to achieve high efficiency, 85% without
dimmer
●● Meets Harmonic Requirement, high power factor (0.9)
without dimmer
●● Temperature control to adjust LED brightness
●● Small size design
xx small size input bulk capacitor
xx small size output capacitor
xx smallest transformer
●● Primary-side sensing eliminates the need for opto-
isolator feedback and simplifies design
The iW3610 is a high performance AC/DC offline power
supply controller for dimmable LED luminaires, which uses
advanced digital control technology to detect the dimmer
type and phase. The dimmer conduction phase controls
the LED brightness. The LED brightness is modulated by
PWM-dimming. The dimming frequency is selectable via
product options. iW3610’s unique digital control technology
eliminates visible flicker.
iW3610 can operate with all dimmer schemes including:
leading-edge dimmer, trailing-edge dimmer, as well as
other dimmer configurations such as R-type, R-C type or
R-L type. When a dimmer is not present, the controller can
automatically detect that there is no dimmer.
iW3610 operates in quasi-resonant mode to provide high
efficiency. Also the iW3610 provides a number of key
built-in features. Since the iW3610 uses iWatt’s advanced
primary-side sensing technology, it achieves excellent line
and load regulation without secondary feedback circuitry.
In addition, iW3610’s pulse-by-pulse waveform analysis
allows for accurate LED current regulation. The iW3610
also maintains stability over all operating conditions without
the need for loop compensation components. Therefore, the
iW3610 minimizes external component count, simplifies EMI
design and lowers overall bill of materials cost.
3.0 Applications
●● Dimmable LED luminaires
●● Tight LED current regulation ± 5%
●● Fast start-up, typically 10 µA start-up current
●● Up to 45 W
●● Precise LED current control
iW3610
●● Multiple protection features:
xx LED open protection
xx Single-fault protection
xx Over-current protection
xx LED short circuit protection
xx Current sense resistor short protection
xx Over-temperature protection
Rev. 1.5
iW3610
February 1, 2012
Page 1
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iW3610
AC/DC Digital Power Controller for Dimmable LED Drivers
6.0 Electrical Characteristics (cont.)
VCC = 12 V, -40°C ≤ TA ≤ 85°C, unless otherwise specified (Note 1)
Parameter
Symbol Test Conditions
ISENSE SECTION (Pin 6)
Over current limit threshold
Isense short protection reference
CC regulation threshold limit (Note 2)
VOCP
VRSNS
VREG-TH
VT SECTION (Pin 4)
Shutdown threshold (Note 2)
Input leakage current
Pull up current source
VSH-TH
IBVS
ISD
VSD = 1.0 V
OUTPUT(TR) SECTION (Pin 1)
Output low level ON-resistance
Output high level ON-resistance
RDS-TR(ON)LO
RDS-TR(ON)HI
ISINK = 5 mA
ISOURCE = 5 mA
Min
1.83
90
Typ
1.89
0.16
1.8
0.09
100
100
200
Max Unit
1.95 V
V
V
V
1 µA
110 µA
Ω
Ω
Notes:
Note 1. Adjust VCC above the start-up threshold before setting at 12 V.
Note 2. These parameters are not 100% tested, guaranteed by design and characterization.
Note 3. Operating frequency varies based on the line and load conditions, see Theory of Operation for more details.
Rev. 1.5
iW3610
February 1, 2012
Page 5
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for iW3610 electronic component. |
Information | Total 17 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ iW3610.PDF Datasheet ] |
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