iW1699
Off-Line Digital Green-Mode
Quasi-Resonant PWM Controller
1 Description
The iW1699 is a high performance AC/DC power supply controller that uses digital control technology to build peak
current mode PWM flyback power supplies. The device operates in quasi-resonant mode to provide high efficiency
and key built-in protection features while minimizing the external component count, simplifying EMI design and
lowering the total bill of material cost. The iW1699 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. Pulse-by-pulse waveform analysis allows for a loop response that is much
faster than traditional solutions, resulting in improved dynamic load response for both one-time and repetitive load
transients. 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 iW1699 can achieve both highest
average active efficiency and less than 30mW no-load power consumption, and have fast dynamic load response in
a compact form factor in typical 12W and above applications. The active start-up scheme enables shortest possible
start-up time without sacrificing no-load power loss.
2 Features
● No-load power consumption < 30mW at 230V
AC
along
● Adaptive multi-mode PWM/PFM control improves
with fast dynamic load response and short turn-on
efficiency
delay time in typical 12W compact adapter/charger
● No external loop compensation components required
applications
● Complies with EPA 2.0 energy-efficiency specifications
● Tight constant-voltage and constant-current regulation
with ample margin
across line and load range
● Built-in single-point fault protection features: output
●
PrimAccurate
TM
primary-side feedback eliminates
short-circuit protection, output over-voltage protection,
opto-isolators and simplifies design
over-current protection and current-sense-resistor fault
● Proprietary optimized 89kHz maximum PWM switching
protection
frequency with quasi-resonant operation achieves best
● Dedicated pins for external over-temperature
size, efficiency and common mode noise
protection and over-voltage protection, with latch
● User-configurable 5-level cable drop compensation
function available
provides design flexibility
● No audible noise over entire operating range
®
●
EZ-EMI
design enhances manufacturability
3 Applications
●
Compact AC/DC adapters or chargers for media
tablets and smart phones
●
AC/DC adapters for consumer electronics
Product Summary
www.dialog-semiconductor.com
Rev. 1.0
1 of 6
30-Jun-2016
© 2016 Dialog Semiconductor
iW1699
Off-Line Digital Green-Mode
Quasi-Resonant PWM Controller
L
+
N
+
V
OUT
RTN
U1
iW1699
1
2
3
4
V
SENSE
SD
CFG
ASU
V
CC
8
GND
7
OUTPUT
6
I
SENSE
5
+
NTC
R
CDC
Figure 3.1 : iW1699 Typical Application Circuit (Achieving < 30mW No-load Power Consumption)
L
V
OUT
RTN
+
N
+
U1
iW1699
1
2
3
4
V
SENSE
SD
CFG
ASU
V
CC
8
GND
7
OUTPUT
6
I
SENSE
5
+
NTC
R
CDC
Figure 3.2 : iW1699 Typical Application Circuit (Alternative Circuit without Using Active Start-up Device)
Product Summary
www.dialog-semiconductor.com
Rev. 1.0
2 of 6
30-Jun-2016
© 2016 Dialog Semiconductor
iW1699
Off-Line Digital Green-Mode
Quasi-Resonant PWM Controller
4 Pinout Description
iW1699
1
2
3
4
V
SENSE
SD
CFG
ASU
V
CC
GND
OUTPUT
I
SENSE
8
7
6
5
Figure 4.1 : 8-Pin SOIC-8 Package
Pin No.
1
2
3
4
5
6
7
8
Pin Name
Type
Pin Description
V
SENSE
SD
CFG
ASU
I
SENSE
OUTPUT
GND
V
CC
Analog
Input
Analog
Input
Analog
Input
Output
Analog
Input
Output
Ground
Auxiliary voltage sense (used for primary regulation).
External shutdown control. Used for external over-temperature protection
(OTP) by connecting an NTC resistor from this pin to Ground.
Used for external cable drop compensation (CDC) configuration and
supplemental over-voltage protection (OVP).
Control signal for active start-up device (BJT or depletion mode NFET).
Primary current sense. Used for cycle-by-cycle peak current control and
limit.
Gate drive for external MOSFET switch.
Ground.
Power Input Power supply for control logic.
Product Summary
www.dialog-semiconductor.com
Rev. 1.0
3 of 6
30-Jun-2016
© 2016 Dialog Semiconductor
iW1699
Off-Line Digital Green-Mode
Quasi-Resonant PWM Controller
5 Absolute Maximum Ratings
Parameter
DC supply voltage range (pin 8, I
CC
= 20mA max)
Continuous DC supply current at V
CC
pin (V
CC
= 15V)
ASU output (pin 4)
OUTPUT (pin 6)
V
SENSE
input (pin 1, I
VSENSE
≤ 10mA)
I
SENSE
input (pin 5)
SD (pin 2)
CFG (pin 3, I
CFG
≤ 20mA)
Maximum junction temperature
Operating junction temperature
Storage temperature
Thermal resistance junction-to-ambient
ESD rating per JEDEC JESD22-A114
Latch-up test per JESD78A
T
JMAX
T
JOPT
T
STG
θ
JA
Absolute maximum ratings are the parameter values or ranges which can cause permanent damage if exceeded.
Symbol
V
CC
I
CC
Value
-0.3 to 18.0
20
-0.3 to 18.0
-0.3 to 18.0
-0.7 to 4.0
-0.3 to 4.0
-0.3 to 4.0
-0.8 to 4.0
150
-40 to 150
–65 to 150
160
±2,000
±100
Units
V
mA
V
V
V
V
V
V
°C
°C
°C
°C/W
V
mA
Product Summary
www.dialog-semiconductor.com
Rev. 1.0
4 of 6
30-Jun-2016
© 2016 Dialog Semiconductor
iW1699
Off-Line Digital Green-Mode
Quasi-Resonant PWM Controller
6 Physical Dimensions
8-Lead Small Outline (SOIC) Package
Symbol
D
Inches
MIN
0.053
0.0040
0.049
0.014
0.007
0.189
0.150
0.228
0.10
0.016
0°
MAX
0.069
0.010
0.059
0.019
0.010
0.197
0.157
0.244
0.020
0.049
8°
Millimeters
MIN
1.35
0.10
1.25
0.35
0.19
4.80
3.80
5.80
0.25
0.4
MAX
1.75
0.25
1.50
0.49
0.25
5.00
4.00
6.20
0.50
1.25
8
5
4
A
H
A1
A2
B
C
E
1
e
A1
h x 45°
A2
B
A
SEATING
PLANE
α
C
L
D
E
e
H
h
L
α
0.050 BSC
1.27 BSC
COPLANARITY
0.10 (0.004)
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 body 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.
7 Ordering Information
Part no.
iW1699-01
iW1699-02
iW1699-03
iW1699-05
Options
OVP/OTP latch, no CC operation
No OVP/OTP latch, 0.75V CC shutdown voltage
OVP/OTP latch, 0.75V CC shutdown voltage
No OVP/OTP latch, 2.9V CC shutdown voltage
Package
SOIC-8
SOIC-8
SOIC-8
SOIC-8
Description
Tape & Reel
1
Tape & Reel
1
Tape & Reel
1
Tape & Reel
1
Note 1: Tape and reel packing quantity is 2,500/reel. Minimum ordering quantity is 2,500.
Product Summary
www.dialog-semiconductor.com
Rev. 1.0
5 of 6
30-Jun-2016
© 2016 Dialog Semiconductor
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