iW1830
Off-Line Digital Green-Mode Quasi-Resonant
PWM Controller Integrated with Power MOSFET
1 Description
The iW1830 is a high performance AC/DC power supply control device that uses digital control
technology to build peak current mode PWM flyback power supplies. The device includes an internal
power MOSFET and operates in quasi-resonant mode and includes key built-in protection features.
This combination of features and integration simplifies design, improves efficiency, reduces EMI and
lowers the bill of material cost.
The iW1830 removes the need for a secondary feedback circuit while achieving excellent line and load
regulation. It also eliminates the need for loop compensation components while maintaining stability over all operating
conditions. The pulse-by-pulse waveform analysis allows for a loop response that is much faster than traditional
solutions, resulting in improved dynamic load response. The built-in power limit function enables optimized transformer
design in universal off-line applications and allows for a wide input voltage range.
Dialog’s innovative proprietary technology ensures that power supplies built with the iW1830 can achieve both the
highest average efficiency and less than 50mW no-load power consumption in the 15W output power range, and have
2 Features
●
PrimAccurate™
primary-side feedback eliminates
opto-isolators and simplifies design
● Integrated 700V power MOSFET
●
Tight constant-voltage regulation across line and load
range
●
Adaptively controlled soft-start enables fast and
smooth start-up for a wide range of capacitive loads
(from 330μF
to 6,000μF) with output voltage of 12V
and above
●
EZ-EMI
®
design enhances manufacturability
●
Adaptive multi-mode PWM/PFM control improves
● Proprietary optimized 79kHz maximum PWM switching
efficiency
frequency with quasi-resonant operation achieves best
size, efficiency and common mode noise
●
Built-in single-point fault protections against output
short-circuit, output over-voltage and output over-
● No-load power consumption < 50mW at 230V
AC
along
current
with fast dynamic load response and short turn-on
delay in typical 15W adapter applications
● Built-in over-temperature protection (OTP)
3 Applications
● Home appliances
●
Power adapters for network devices and monitors
● Universal input AC/DC adapters (up to 15W)
●
No audible noise over entire operating range
Product Summary
www.dialog-semiconductor.com
Rev. 1.0
1 of 6
23-August-2016
© 2016 Dialog Semiconductor
iW1830
Off-Line Digital Green-Mode Quasi-Resonant
PWM Controller Integrated with Power MOSFET
L
V
OUT
GND
+
N
+
U1
iW1830
1
2
3
4
V
CC
V
SENSE
GND
I
SENSE
D
D
8
7
S
5
Figure 3.1 : iW1830 Typical Application Circuit
WARNING:
The iW1830 is intended for high voltage AC/DC offline applications. Contact with live high voltage offline
circuits or improper use of components may cause lethal or life threatening injuries or property damage.
Only qualified professionals with safety training and proper precaution should operate with high voltage
offline circuits.
iW1830 Output Power Table at Universal Input (85V
AC
–264V
AC
)
Condition
Output Power (W)
2
Notes:
Note 1.
Maximum practical continuous output power measured at open frame ambient temperture of 50°C and device package/
pin temperatures of ≤ 100°C while minimum bulk capacitor voltage is kept above 90V and no special heatsinking is used
(test unit is placed in a non-ventilated environment).
The output power can vary depending on the power supply system designs and operating conditions.
Open Frame
1
15.0
Note 1.
Product Summary
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Rev. 1.0
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23-August-2016
© 2016 Dialog Semiconductor
iW1830
Off-Line Digital Green-Mode Quasi-Resonant
PWM Controller Integrated with Power MOSFET
4 Pinout Description
iW1830
V
CC
V
SENSE
GND
I
SENSE
1
2
3
4
8
7
D
D
5
S
Figure 4.1 : 7-Lead PDIP Package
Pin Number
1
2
3
4
5
7
8
Pin Name
V
CC
V
SENSE
GND
I
SENSE
S
D
D
Type
Power Input
Analog Input
Ground
Analog Input
MOSFET Source
MOSFET Drain
MOSFET Drain
Pin Description
IC power supply.
Auxiliary voltage sense. Used for primary side regulation.
Ground.
Primary current sense. Used for cycle-by-cycle peak current control and limit.
Source of the internal power MOSFET (pin 4 and pin 5 must be shorted
externally on the PCB).
Drain of the internal power MOSFET.
Drain of the internal power MOSFET.
Product Summary
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Rev. 1.0
3 of 6
23-August-2016
© 2016 Dialog Semiconductor
iW1830
Off-Line Digital Green-Mode Quasi-Resonant
PWM Controller Integrated with Power MOSFET
5 Absolute Maximum Ratings
Absolute maximum ratings are the parameter values or ranges which can cause permanent damage if exceeded.
Parameter
DC supply voltage range (pin 1, I
CC
= 20mA max)
Continuous DC supply current at V
CC
pin (V
CC
= 15V)
V
SENSE
input (pin 2, I
Vsense
≤ 10mA)
I
SENSE
input (pin 4)
Drain-source voltage
Continuous drain current @ T
C
=25°C
Continuous drain current @ T
C
=100°C
Pulsed drain current (Note 1)
Single Pulse Avalanche Energy (starting T
J
= 25°C)
Maximum junction temperature
Operating junction temperature
Storage temperature
Electrostatic Discharge Capability (Human Body Model), JEDEC JS-001-
2012
Electrostatic Discharge Capability (Charge Device Model), JEDEC
JESD22-C101
Latch-up test per JESD78A
Notes:
Note 1.
Repetitive rating; pulse width limited by maximum junction temperature.
V
DSS
I
D
I
DM
E
AS
T
JMAX
T
JOPT
T
STG
ESD
(HBM)
ESD
(CDM)
Symbol
V
CC
I
CC
Value
-0.3 to 25.0
20
-0.7 to 4.0
-0.3 to 4.0
700
4
2.9
16
150
150
-40 to 150
–55 to 150
±4.5
±1.0
±100
Units
V
mA
V
V
V
A
A
mJ
°C
°C
°C
kV
kV
mA
6 Thermal Characteristics
Parameter
Thermal Resistance Junction-to-Ambient
1
Thermal Resistance Junction-to-GND pin (pin 3)
2
Thermal Resistance Junction-to-Drain pin (pin 7 and pin 8)
2
Thermal Shutdown Threshold
3
Thermal Shutdown Recovery
3
Notes:
Note 1.
Note 2.
Device is mounted on a JEDEC single-sided board with 100mm
2
of 35μm thick copper, in a one-cubic-foot natural
convection chamber with 1W dissipated power.
ψ
JB
[Psi Junction to Board] provides an estimation of the die junction temperature relative to the PCB [Board] surface
temperature. ψ
J-MOSFET
[Psi Junction to Drain pin] provides an estimation of the die junction temperature relative to the
Drain pin [internal MOSFET Drain] surface temperature. ψ
JB
is measured at the ground pin (pin 3) without using any
thermal adhesives. See Section 10.14 for more information.
These parameters are typical and they are guaranteed by design.
Symbol
θ
JA
ψ
JB
ψ
J-MOSFET
T
SD
T
SD-R
Value
80
25
35
150
120
Units
°C/W
°C/W
°C/W
°C
°C
Note 3.
Product Summary
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Rev. 1.0
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23-August-2016
© 2016 Dialog Semiconductor
iW1830
Off-Line Digital Green-Mode Quasi-Resonant
PWM Controller Integrated with Power MOSFET
7 Physical Dimensions
7-Lead Plastic Dual In-Line (PDIP) Package
Symbol
Inches
MIN
0.135
0.015
0.050
0.007
0.367
0.300
0.240
0.332
0.120
MAX
0.145
0.021
0.065
0.014
0.387
0.325
0.260
0.392
0.140
Millimeters
MIN
3.429
0.381
1.270
0.200
9.322
7.620
6.096
8.433
3.048
MAX
3.683
0.533
1.650
0.356
9.830
8.255
6.604
9.957
3.556
8
1
5
4
E1
A
B
E
e
D
B1
C
D
E
A
L
C
E1
e
eA
L
0.1 BSC
2.54 BSC
B1
B
eA
Compliant to JEDEC Standard MS12F
Controlling dimensions are in inches; millimeter dimensions are for reference only
This product is RoHS compliant and Halide free.
Soldering Temperature Resistance:
[a] Package is IPC/JEDEC Std 020D Moisture Sensitivity Level 1
[b] Package exceeds JEDEC Std No. 22-A111 for Solder Immersion Resistance; package can withstand
10 s immersion < 260˚C
Dimension D does not include mold flash, protrusions or gate burrs. Mold flash, protrusions or gate burrs shall
not exceed 0.15 mm per end. Dimension E1 does not include interlead flash or protrusion. Interlead flash or
protrusion shall not exceed 0.25 mm per side.
The package top may be smaller than the package bottom. Dimensions D and E1 are determined at the
outermost extremes of the plastic bocy exclusive of mold flash, tie bar burrs, gate burrs and interlead flash, but
including any mismatch between the top and bottom of the plastic body.
8 Ordering Information
Part no.
iW1830-00
iW1830-01
Options
No CC operation, no latch
OVP/OTP latch, no CC operation with latch
Package
PDIP-7
PDIP-7
Description
Tube
1
Tube
1
Note 1: Packing quantity is 50 units/tube, 1,000 units (20 tubes)/box. Minimum ordering quantity is 1,000 units.
Product Summary
www.dialog-semiconductor.com
Rev. 1.0
5 of 6
23-August-2016
© 2016 Dialog Semiconductor
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