iW3658
Single-Stage SSL LED Driver with Integrated High
Voltage MOSFET for Dimmable Retrofit Lamps up to 15W
1 Description
The iW3658 is a highly integrated, high-performance off-line power supply controller for phase-cut dimmable LED
luminaires. It uses patented PrimAccurate™ primary-side sensing technology to regulate output current accurately
without the need for a feedback circuit. The iW3658 operates at boundary conduction mode to achieve high efficiency
and low EMI.
With advanced dimming control technology, the iW3658 can operate with most wall dimmers including leading-edge
dimmers (R-type or R-L type) and trailing-edge dimmers (R-C type). The iW3658 operates in buck-boost mode to
regulate current to the output LEDs.
Dialog’s innovative technology maximizes the iW3658 performance with an integrated high-voltage MOSFET in an SO-7
package, which provides an extra pin spacing between the high voltage MOSFET’s drain and low voltage pins. With
Dialog’s proprietary VCC regulation circuit, the iW3658’s VCC level is well maintained regardless of the LED voltage and
dimmer phase angle, which eliminates the possibility of low end flickering.
2 Features
● Isolated/non-isolated off-line 120VAC/230VAC LED
driver up to 15W (Note 1)
● Wide line frequency range (45Hz – 66Hz)
● Closed-loop constant current regulation
● Built-in LED current derating at high temperature
● Built-in over-temperature shut-down
● Excellent dimmer compatibility
● LED open and short protection
x Leading-edge dimmer
● Fast start-up (< 0.5s without dimmer)
x Trailing-edge dimmer
● Low BOM cost
● Resonant control to achieve high efficiency
(typical > 85%)
● Integrated high-voltage MOSFET
● Supports Buck-Boost topology
● Single-winding inductor
● Internal start-up without the need for high voltage
circuit
3 Applications
● Dimmable LED retrofit lamps up to 15W (Note 1)
x A-style, BR, GU and PAR
● Fits in E26/27 Socket for All-Glass Lamps
Product Summary
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Rev. 0.93 Preliminary
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06-Feb-2022
© 2022 Renesas Electronics
iW3658
Single-Stage SSL LED Driver with Integrated High
Voltage MOSFET for Dimmable Retrofit Lamps up to 15W
L
VOUT
-
VOUT
+
N
iW3658
5
VG
6
VCC
7
COMP
8
CFG
HV
4
GND
2
ISENSE
1
Figure 3.1 : iW3658 Typical Application Circuit
Note 1 : For output power above 12W designs, care should be taken to verify the thermal and reliability constraints
on the IC. An IC temperature below 120°C is recommended for proper IC operation.
Product Summary
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Rev. 0.93 Preliminary
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06-Feb-2022
© 2022 Renesas Electronics
iW3658
Single-Stage SSL LED Driver with Integrated High
Voltage MOSFET for Dimmable Retrofit Lamps up to 15W
4 Pinout Description
iW3658
1
ISENSE
CFG 8
2
GND
COMP 7
VCC 6
4
HV
VG 5
Figure 4.1 : 7-Lead SO Package
Pin Number
Pin Name
Type
1
ISENSE
Analog
Current sense
2
GND
Ground
Ground reference
4
HV
Analog
Internal high voltage MOSFET drain
5
VG
Analog
Internal high voltage MOSFET gate
6
VCC
Power Input
7
COMP
Analog
Constant current regulation loop compensation
8
CFG
Analog
OVP level configuration
Product Summary
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Pin Description
Power supply to control logic and MOSFET drive
Rev. 0.93 Preliminary
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06-Feb-2022
© 2022 Renesas Electronics
iW3658
Single-Stage SSL LED Driver with Integrated High
Voltage MOSFET for Dimmable Retrofit Lamps up to 15W
5 Absolute Maximum Ratings
Absolute maximum ratings are the parameter values or ranges which can cause permanent damage if exceeded.
Parameter
Symbol
Value
Units
VCC
-0.3 to 6.0
V
VG (pin 5)
-0.3 to 18.0
V
COMP (pin 7)
-0.3 to 6.0
V
HV (pin 4)
500 or 650
V
ISENSE (pin 1)
-0.3 to 6.0
V
CFG (pin 8)
-0.3 to 6.0
V
DC supply voltage range (pin 6)
Maximum junction temperature
TJMAX
150
°C
Operating junction temperature
TJOPT
-40 to 150
°C
Storage temperature
TSTG
-65 to 150
°C
θJA
170
°C/W
ESD rating per JEDEC JS-001-2017
± 2000
V
Latch-up test per JESD78E
± 100
mA
Thermal resistance junction-to-ambient
Product Summary
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Rev. 0.93 Preliminary
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© 2022 Renesas Electronics
iW3658
Single-Stage SSL LED Driver with Integrated High
Voltage MOSFET for Dimmable Retrofit Lamps up to 15W
6 Physical Dimensions
Product Summary
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Rev. 0.93 Preliminary
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iW3658
Single-Stage SSL LED Driver with Integrated High
Voltage MOSFET for Dimmable Retrofit Lamps up to 15W
7 Ordering Information
Part no.
Options
Package
Description
iW3658-00C1
iW3658-00D1
iW3658-00F
120VAC Input, 500V/3A MOSFET
SO-7
Tape & Reel2
iW3658-06D1
iW3658-06F
120VAC Input, 500V/2A MOSFET
SO-7
Tape & Reel2
iW3658-201
iW3658-20D1
iW3658-20F
120VAC Input, 500V/3A MOSFET, optimized for high power factor
SO-7
Tape & Reel2
iW3658-211
iW3658-21D1
iW3658-21F
230VAC Input, 650V/2A MOSFET, optimized for high power factor
SO-7
Tape & Reel2
iW3658-26D1
iW3658-26F
120VAC Input, 500V/2A MOSFET, optimized for high power factor
SO-7
Tape & Reel2
iW3658-301
iW3658-30D1
iW3658-30F
120VAC Input, 500V/3A MOSFET, optimized for filament load
SO-7
Tape & Reel2
iW3658-311
iW3658-31D1
iW3658-31F
230VAC Input, 650V/2A MOSFET, optimized for filament load
SO-7
Tape & Reel2
iW3658-36D1
iW3658-36F
120VAC Input, 500V/2A MOSFET, optimized for filament load
SO-7
Tape & Reel2
Note 1: Not recommended for new designs; use the -xxF version.
Note 2: Tape and reel packing quantity is 2,500/reel. Minimum packing quantity is 2,500.
Product Summary
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Rev. 0.93 Preliminary
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06-Feb-2022
© 2022 Renesas Electronics
iW3658
Single-Stage SSL LED Driver with Integrated High
Voltage MOSFET for Dimmable Retrofit Lamps up to 15W
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Product Summary
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