15 W 5 V Adapter Reference Board

15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW2103W
About this document
Scope and purpose
This document is an engineering report that describes 15 W 5 V USB adapter reference design board using
Quasi-Resonant PWM IC ICE2QS03G (DSO-8) with CoolMOS™ IPS65R1K5CE (IPAK SL) and secondary side
synchronous rectification IC IR1161 (5-Pin SOT-23) with OptiMOS™ BSZ100N06LS3 G (S3O8, 3x3 mm style
SuperSO8). The reference USB adapter board is specially designed in a very small form factor, high efficiency,
low standby power, various modes of protections for a high reliable system and it pass conductive EMI, ESD
and Lightning surge test. This board can be used for production by customers after final verification with minor
changes.
Intended audience
This document is intended for power supply design/application engineer, students, etc.) who wish to design
15 W 5 V AC-DC adapter in short period of time, high efficiency, high reliability and very small form factor with
Infineon CoolMOS™ CE series, OptiMOS™, Quasi-Resonant PWM IC ICE2QS03G and synchronous rectification IC
IR1161.
Table of Contents
About this document ...................................................................................................... 1
Table of Contents........................................................................................................... 1
1
Abstract ........................................................................................................................ 3
2
Reference board ............................................................................................................ 4
3
Specification of Reference Board ..................................................................................... 5
4
4.1
4.2
4.3
4.4
4.5
Circuit description ......................................................................................................... 6
Mains input rectification and filtering ......................................................................................................... 6
PWM control and switching MOSFET .......................................................................................................... 6
Snubber network ........................................................................................................................................... 6
Output stage .................................................................................................................................................. 6
Feedback loop ............................................................................................................................................... 6
5
5.1
5.2
5.3
5.4
5.5
Circuit operation ........................................................................................................... 7
Startup operation .......................................................................................................................................... 7
Normal mode operation ............................................................................................................................... 7
Primary side peak current control ............................................................................................................... 7
Digital frequency reduction.......................................................................................................................... 7
Burst mode operation ................................................................................................................................... 7
6
6.1
6.2
6.3
6.4
6.5
6.6
Protection features ........................................................................................................ 9
VCC over voltage and under voltage protection ........................................................................................ 9
Over load/Open loop protection ................................................................................................................. 9
Auto restart for over temperature protection ............................................................................................ 9
Adjustable output overvoltage protection ................................................................................................. 9
Short winding protection ............................................................................................................................. 9
Foldback point protection............................................................................................................................ 9
Application Note
www.infineon.com
Please read the Important Notice and Warnings at the end of this document
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Abstract
7
Circuit Diagram ............................................................................................................10
8
8.1
8.2
PCB layout ...................................................................................................................11
Top side ........................................................................................................................................................ 11
Bottom side .................................................................................................................................................. 11
9
Component list .............................................................................................................12
10
Transformer construction..............................................................................................13
11
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.9
Test results ..................................................................................................................14
Efficiency, regulations and output ripple ................................................................................................. 14
Standby power............................................................................................................................................. 16
Line regulation ............................................................................................................................................. 16
Load regulation ........................................................................................................................................... 17
Maximum input power ................................................................................................................................ 17
ESD immunity (EN61000-4-2) ..................................................................................................................... 17
Surge immunity (EN61000-4-5) .................................................................................................................. 17
Conducted emissions (EN55022 class B) .................................................................................................. 18
Thermal measurement ............................................................................................................................... 20
12
12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
12.9
12.10
12.11
12.12
12.13
Waveforms and scope plots ...........................................................................................21
Start up at low and high AC line input voltage with maximum load ..................................................... 21
Soft start ....................................................................................................................................................... 21
Start up delay and output voltage rise time ............................................................................................. 22
Hold up time ................................................................................................................................................ 22
Drain and current sense voltage at maximum load................................................................................. 22
Zero crossing point during normal operation .......................................................................................... 23
Load transient response (Dynamic load) .................................................................................................. 23
Output ripple voltage at maximum load .................................................................................................. 24
Output ripple voltage at burst mode 1 W load ......................................................................................... 24
Active burst mode ....................................................................................................................................... 25
Over load protection (Auto Restart Mode)................................................................................................ 25
Output overvoltage protection (Latched mode)...................................................................................... 26
VCC under voltage/Short optocoupler protection (Auto restart mode)................................................ 26
13
References ...................................................................................................................27
Revision History ...........................................................................................................27
Application Note
2
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Abstract
1
Abstract
This application note is an engineering report of a very small form factor reference design for universal input 15
W 5 V adapter. The adapter is using ICE2QS03G, a second generation current mode control Quasi-Resonant
flyback topology controller, IR1161, µSmartRectifier™ for synchronous rectification, IPS65R1K5CE, a CE series
of high voltage power CoolMOS™ and BSZ100N06LS3 G, a third series of medium voltage power logic level
OptiMOS™ , optimized for logic level driver of Synchronous Rectification. The distinguishing features of this
reference design are very small form factor, best-in-class low standby power, very high efficiency, good EMI
performance and various modes of protection for high reliable system.
Application Note
3
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Reference board
2
Reference board
This document contains the list of features, the power supply specification, schematic, bill of material and the
transformer construction documentation. Typical operating characteristics such as performance curve and
scope waveforms are showed at the rear of the report.
Figure 1
REF-15W_IR_Opti3 ADAPTER [Dimensions L x W x H: 47mm x 31mm x 16mm]
IPS65R1K5C
E
Figure 2
REF-15W_IR_Opti3 ADAPTER (Top view)
BAS21-03W
IR1161
BSZ100N06LS3
G
ICE2QS03G
Figure 3
REF-15W_IR_Opti3 ADAPTER (Bottom view)
Application Note
4
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Specification of Reference Board
3
Table 1
Specification of Reference Board
Specification of REF-15W_IR_Opti3 ADAPTER
Input voltage and frequency
85 VAC (60 Hz)~265 VAC (50 Hz)
Output voltage, current & power
5 V/3 A/15 W
Output voltage rise time
<30 ms
Start up delay time (VAC 115 V, 60 Hz, Full Load)
<250 ms
Hold up time (VAC 115 V, 60 Hz, Full Load)
>5 ms
Dynamic load response
(50mA to full load, slew rate at 1.5 A/µs, 100 Hz)
±3% of nominal output voltage
(Vripple_p_p <300 mV)
Output ripple voltage
(full load, 85 VAC ~265 VAC)
±1% of nominal output voltage
(Vripple_p_p<100 mV)
Active mode four point average efficiency
(25%,50%,75%,100%load) (EU CoC Version 5, Tier 2 and
EPS of DOE USA)
>88% at 115 VAC & >87% at 230 VAC
10% load efficiency (EU CoC Version 5, Tier 2)
>87% at 115 VAC & >84% at 230 VAC
No load power consumption (EU CoC Version 5, Tier 2
and EPS of DOE USA)
<30 mW at 265 VAC
Conducted emissions (EN55022 class B)
Pass with 10 dB margin for 115 VAC and 6 dB
margin for 230 VAC
Safety Leakage Current
(50 µA @ VAC = 265 V,L to FG & N to FG)
<50 µA @ VAC = 265 VAC
ESD immunity (EN61000-4-2)
Level 4 (±8 kV: contact discharge)
Surge immunity (EN61000-4-5)
Installation class 3 (2 kV: common mode)
Form factor case size (L x W x H)
(47 x 31 x 16) mm3
Application Note
5
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Circuit description
4
Circuit description
4.1
Mains input rectification and filtering
The AC line input side comprises the input fuse F1 as over-current protection. A rectified DC voltage (120 V ~ 374
V) is obtained through a bridge rectifier BR1 and a pi filter C13, FB21 and C22. The pi filer also attenuates the
differential mode conducted EMI.
4.2
PWM control and switching MOSFET
The PWM pulse is generated by the Quasi Resonant PWM current-mode Controller ICE2QS03G and this PWM
pulse drives the high voltage power CoolMOS™, IPS65R1K5CE (CE) which designed according to the
revolutionary Superjunction (SJ) principle. The CoolMOS™ CE provides all benefits of a fast switching SJ
MOSFET while not sacrificing ease of use. It achieves extremely low conduction and switching losses and can
make switching applications more efficient, more compact, lighter and cooler. The PWM switch-on is
determined by the zero-crossing input signal and the value of the up/down counter. The PWM switch-off is
determined by the feedback signal VFB and the current sensing signal VCS. ICE2QS03G also performs all
necessary protection functions in flyback converters. Details about the information mentioned above are
illustrated in the product datasheet.
4.3
Snubber network
A snubber network DZD11 dissipates the energy of the leakage inductance and suppress ringing on the SMPS
transformer.
4.4
Output stage
On the secondary side, 5 V output, the PWM pulse is generated by synchronous rectification controller IR1161.
The synchronous rectification pulse drives the logic level medium voltage power OptiMOS™, BSZ100N06LS3 G
which is optimized for synchronous rectification such as the lowest RDS(on), the perfect switching behavior of
fast switching, the smallest footprint (S3O8, 3x3 mm style SuperSO8) and highest power density. The capacitors
C22 provides energy buffering following with the LC filter FB21 and C24 to reduce the output ripple and prevent
interference between SMPS switching frequency and line frequency considerably. Storage capacitor C22 is
designed to have an internal resistance (ESR) as small as possible. This is to minimize the output voltage ripple
caused by the triangular current.
4.5
Feedback loop
For feedback, the output is sensed by the voltage divider of R26 and R25 and compared to TL431 internal
reference voltage. C25, C26 and R24 comprise the compensation network. The output voltage of TL431 is
converted to the current signal via optocoupler IC12 and two resistors R22 and R23 for regulation control.
Application Note
6
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Circuit operation
5
Circuit operation
5.1
Startup operation
Since there is a built-in startup cell in the ICE2QS03G, there is no need for external start up resistor, which can
improve standby performance significantly. When VCC reaches the turn on voltage threshold 18V, the IC begins
with a soft start. The soft-start implemented in ICE2QS03G is a digital time-based function. The preset softstart time is 12 ms with 4 steps. If not limited by other functions, the peak voltage on CS pin will increase step
by step from 0.32 V to 1 V finally. After IC turns on, the VCC voltage is supplied by auxiliary windings of the
transformer.
5.2
Normal mode operation
The secondary output voltage is built up after startup. The secondary regulation control is adopted with TL431
and optocoupler. The compensation network C25, C26 and R24 constitutes the external circuitry of the error
amplifier of TL431. This circuitry allows the feedback to be precisely controlled with respect to dynamically
varying load conditions, therefore providing stable control.
5.3
Primary side peak current control
The MOSFET drain source current is sensed via external resistor R14 and R14A. Since ICE2QS03G is a current
mode controller, it would have a cycle-by-cycle primary current and feedback voltage control which can make
sure the maximum power of the converter is controlled in every switching cycle.
5.4
Digital frequency reduction
During normal operation, the switching frequency for ICE2QS03G is digitally reduced with decreasing load. At
light load, the CoolMOS™ IPS65R1K5CE will be turned on not at the first minimum drain-source voltage time,
but on the nth. The counter is in range of 1 to 7, which depends on feedback voltage in a time-base. The
feedback voltage decreases when the output power requirement decreases, and vice versa. Therefore, the
counter is set by monitoring voltage VFB. The counter will be increased with low VFB and decreased with high VFB.
The thresholds are preset inside the IC.
5.5
Burst mode operation
At light load condition, the SMPS enters into Active Burst Mode. At this stage, the controller is always active but
the VCC must be kept above the switch off threshold. During active burst mode, the efficiency increase
significantly and at the same time it supports low ripple on Vout and fast response on load jump.
For determination of entering Active Burst Mode operation, three conditions apply:
1. The feedback voltage is lower than the threshold of V FBEB(1.25 V). ACCordingly, the peak current sense voltage
across the shunt resistor is 0.1667;
2. The up/down counter is 7;
3. And a certain blanking time (tBEB=24 ms).
Once all of these conditions are fulfilled, the Active Burst Mode flip-flop is set and the controller enters Active
Burst Mode operation. This multi-condition determination for entering Active Burst Mode operation prevents
mis-triggering of entering Active Burst Mode operation, so that the controller enters Active Burst Mode
operation only when the output power is really low during the preset blanking time.
During active burst mode, the maximum current sense voltage is reduced from 1 V to 0.34 V so as to reduce the
conduction loss and the audible noise. At the burst mode, the FB voltage is changing like a sawtooth between
3.0 and 3.6 V.
Application Note
7
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Circuit operation
The feedback voltage immediately increases if there is a high load jump. This is observed by one comparator.
As the current limit is 34% during Active Burst Mode a certain load is needed so that feedback voltage can
exceed VFBLB (4.5 V). After leaving active burst mode, maximum current can now be provided to stabilize Vout. In
addition, the up/down counter will be set to 1 immediately after leaving Active Burst Mode. This is helpful to
decrease the output voltage undershoot.
Application Note
8
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Protection features
6
Protection features
6.1
VCC over voltage and under voltage protection
During normal operation, the VCC voltage is continuously monitored. When the VCC voltage increases up to
VCC,OVP or VCC voltage falls below the under voltage lock out level V CC,off, the IC will enter into autorestart mode.
6.2
Over load/Open loop protection
In case of open control loop, feedback voltage is pulled up with internally block. After a fixed blanking time, the
IC enters into auto restart mode. In case of secondary short-circuit or overload, regulation voltage VFB will also
be pulled up, same protection is applied and IC will auto restart.
6.3
Auto restart for over temperature protection
The IC has a built-in over temperature protection function. When the controller’s temperature reaches 140°C,
the IC will shut down switch and enters into auto restart. This can protect power MOSFET from overheated.
6.4
Adjustable output overvoltage protection
During off-time of the power switch, the voltage at the zero-crossing pin ZC is monitored for output overvoltage
detection. If the voltage is higher than the preset threshold 3.7 V for a preset period 100 μs, the IC is latched off.
6.5
Short winding protection
The source current of the MOSFET is sensed via external resistor R14 and R14A. If the voltage at the current
sensing pin is higher than the preset threshold V CSSW of 1.68 V during the on-time of the power switch, the IC is
latched off. This constitutes a short winding protection. To avoid an accidental latch off, a spike blanking time
of 190 ns is integrated in the output of internal comparator.
6.6
Foldback point protection
For a quasi-resonant flyback converter, the maximum possible output power is increased when a constant
current limit value is used for all the mains input voltage range. This is usually not desired as this will increase
additional cost on transformer and output diode in case of output over power conditions.
The internal foldback protection is implemented to adjust the V CS voltage limit according to the bus voltage.
Here, the input line voltage is sensed using the current flowing out of ZC pin, during the MOSFET on-time. As the
result, the maximum current limit will be lower at high input voltage and the maximum output power can be
well limited versus the input voltage.
Application Note
9
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Circuit Diagram
7
Figure 4
Circuit Diagram
Schematic of REF-15W_IR_Opti3 ADAPTER
Application Note
10
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
PCB layout
8
PCB layout
8.1
Top side
Figure 5
Top side copper and component legend
8.2
Figure 6
Bottom side
Bottom side copper and component legend
Application Note
11
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Component list
9
Component list
Table 2
Bill of materials (V0.2)
No.
Designator
Description
Footprint
Part Number
Manufacturer
Quantity
1
BR1
(800V/1A)
SOP-4
D1UBA80
SHINDENGEN
1
2
C12
470pF/250V
MKT3/13/10_0M8
DE1B3KL471KC4BNA1S
MURATA
1
3
C13, C13A
15uF/400V
RB10H(10x16)
400AX15M10X16
RUBYCON
2
4
C16
22uF/35V
1206
C3216X5R1V226M
TDK
1
5
C17
100nF/50V
0402
GRM155R71H104KE14D
MURATA
1
6
C18, C26
1nF/50V
0402
GRM155R71H102KA01D
MURATA
2
7
C19
47pF/50V
0402
GRM1555C1H470JA01D
MURATA
1
8
C21
560pF/100V
0603
GRM1885C2A561JA01D
MURATA
1
9
C22
820uF/6.3V
RB6.3
MP6RL820MC8
MATSUKI POLYMER
1
10
C24
450uF/6.3V
RB5
MP6RL450MB8
MATSUKI POLYMER
1
11
C25
220nF/25V
0402
GRM155C81E224KE01D
MURATA
1
12
C27
1uF/25V
0402
GRM155R61E105KA12D
MURATA
1
13
D12,D13
200V/0.25A
SOD323
BAS21-03W
INFINEON
2
14
D21
50V/8A
DO-221BC(SMPA)
V8PAN50-M3/I
15
DZD11
140V
2F
ST02D-140F2
16
F1
250V/1A
AXIAL0.4_V 3mm
0263001.HAT1L
1
17
FB21
FAIR RITE
AXIAL0.4_V 3mm
2743002112
1
FB11,FB22,FB23
Pin 2 of Q2,
leads of C12
19
IC11
ICE2QS03G
20
IC12
TCMT1103
21
IC21
22
23
1
SHINDENGEN
1
B64290P0035X038
EPCOS
3
SO-8
ICE2QS03G
INFINEON
1
half pitch mini flat
TCMT1103
1
TL431
SOT-23
TL431BFDT
1
IC22
IR1161
5-Pin SOT-23
IR1161LPBF
INTERNATIONAL RECTIFIER
1
L11
100µH/0.8A
CH6
7447462101
WURTH ELECTRONICS
1
24
Q11
650V/1.5Ω
IPAK
IPS65R1K5CE
INFINEON
1
25
Q21
60V/10mΩ
PG-TSDSON-8
BSZ100N06LS3
INFINEON
1
26
R12, R15
10R
0402
2
27
R12A, R13, R14B, R15A
0R
0402
4
28
R12B
43k/1%
0402
1
29
R12C
12k/1%
0402
30
R14, R14A
2R/0.33W/1%
1206
31
R18
10k
0402
32
R21
47R/0.5W
0805
33
R22
130R
0402
1
34
R23
1.2k
0402
1
35
R24
12k
0402
1
36
R25, R26
20k
0402
2
37
R27
2R
0402
1
38
R28
50k
0402
1
40
R30
43.2k
0402
1
41
R31, R33
51.1k
0402
1
42
R32
75k
0402
1
43
TR1
718µH(66:5:15)
TR_RM6_THT8Pin
44
USB Port
USBPORT
USB2 Short
JL-CAF-001
1
45
ZD11
22V Zener
SOD323
UDZS22B
1
18
Application Note
1
ERJ8BQF2R0V
2
1
ERJP6WF47R0V
1
1
12
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Transformer construction
10
Transformer construction
Core and material: RM6 TP4A
Bobbin: RM6 with 4 pin
Primary Inductance, Lp=718 μH ( ±10%), measured between pin 2 and pin 1
Figure 7
Start
2
Stop
X
No. of turns
33
Wire size
1XAWG#34
7
S2 Flying wire 15mm
7
floating
F2 Flying wire 15mm
floating
30
5
30
1XAWG#34
1XLitz TIW(7 X AWG#29)
1XAWG#34
X
8
1
7
33
15
1XAWG#34
1XAWG#34
Layer
/2 Primary
Shield
Secondary
Shield
1
1
/2 Primary
Auxiliary
Transformer structure
Application Note
13
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Test results
11
Test results
11.1
Efficiency, regulations and output ripple
Table 3
Efficiency, regulation & output ripple
Input
(VAC/Hz)
85 VAC/60 Hz
115 VAC/60 Hz
230 VAC/50 Hz
265VAC/50 Hz
Application Note
Pout
(W)
Efficiency
(η) (%)
80.00
1.50
87.38
0.75
48.00
3.76
88.41
5.01
1.50
52.00
7.52
88.31
12.83
5.01
2.25
55.00
11.27
87.86
17.50
5.01
3.00
68.00
15.03
85.89
0.02256
5.01
0.00
72.00
1.71
5.01
0.30
84.00
1.50
87.89
4.24
5.01
0.75
45.00
3.76
88.62
8.45
5.01
1.50
52.00
7.52
88.93
12.72
5.01
2.25
52.00
11.27
88.62
17.17
5.01
3.00
58.00
15.03
87.54
0.02469
5.01
0.00
86.00
1.78
5.01
0.30
88.00
1.50
84.44
4.38
5.01
0.75
44.00
3.76
85.79
8.63
5.01
1.50
51.00
7.52
87.08
12.83
5.01
2.25
53.00
11.27
87.86
17.12
5.01
3.00
56.00
15.03
87.79
0.02689
5.01
0.00
94.00
1.80
5.01
0.30
91.00
1.50
83.50
4.52
5.01
0.75
42.00
3.76
83.13
8.64
5.01
1.50
52.00
7.52
86.98
12.89
5.01
2.25
54.00
11.27
87.45
17.18
5.01
3.00
56.00
15.03
87.49
Pin
(W)
Vout
(VDC)
Iout
(A)
VOutRPP
(mV)
0.02157
5.01
0.00
69.00
1.72
5.01
0.30
4.25
5.01
8.51
14
Average η
(%)
OLP Pin
(W)
OLP Iout
(A)
20.82
3.52
21.00
3.60
21.01
3.72
21.17
3.75
87.62
88.43
87.13
86.26
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Test results
Figure 8
Efficiency vs AC line input voltage
Figure 9
Efficiency vs output power at 115 VAC and 230 VAC line
Application Note
15
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Test results
11.2
Figure 10
Standby power
Standby power at no load vs AC line input voltage (measured by Yokogawa WT210 power
meter - integration mode)
11.3
Figure 11
Line regulation
Line regulation Vout at full load vs AC line input voltage
Application Note
16
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Test results
11.4
Figure 12
Load regulation
Load regulation Vout vs output power
11.5
Figure 13
Maximum input power
Maximum input power (before over-load protection) vs AC line input voltage
11.6
ESD immunity (EN61000-4-2)
Pass EN61000-4-2 Level 3 (±8 kV for contact discharge).
11.7
Surge immunity (EN61000-4-5)
Pass EN61000-4-5 Installation class 3 (±2 kV for line to earth).
Application Note
17
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Test results
11.8
Conducted emissions (EN55022 class B)
The conducted EMI was measured by Schaffner (SMR2503) and followed the test standard of EN55022 (CISPR
22) class B. The demo board was set up at maximum load (15 W) with input voltage of 115 VAC and 230 VAC.
Figure 14
Conducted emissions(Line) at 115 VAC and maximum Load
Figure 15
Conducted emissions(Neutral) at 115 VAC and maximum Load
Pass conducted emissions EN55022 (CISPR 22) class B with 10 dB margin for quasi peak limit at low line (115
VAC).
Application Note
18
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Test results
Figure 16
Conducted emissions(Neutral) at 230 VAC and maximum Load
Figure 17
Conducted emissions(Neutral) at 230 VAC and maximum Load
Pass conducted emissions EN55022 (CISPR 22) class B with 6 dB margin for quasi peak limit at high line (230
VAC).
Application Note
19
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Test results
11.9
Thermal measurement
The reference adapter’s open frame thermal test was done by thermal infrared camera (TVS-500EX) at the
ambient temperature 25 ⁰C. The thermal measures were taken after two hours running with full load.
Table 4
Thermal measurement of REF-15W_IR_Opti3 ADAPTER
No.
Component
85 VAC & 15 W load (°C)
1
Q11 (IPS65R1K5CE)
84
90.6
2
Q21 (BSZ100N06LS3 G)
78.5
75.5
3
IC22 (IR1161)
63.3
65.2
4
TR1 (Transformer)
69.2
66.1
5
IC11 (ICE2QS03G)
69.7
66.9
6
BR1 (bridge diode)
66.2
47.8
7
DZD11(Snubber zenor diode)
79.2
77.4
8
C13A (Bulk Cap)
57.7
50.3
9
L11 (Differnetial Choke)
52.7
43.2
10
R14 (Current sense resistor)
48.6
44.9
11
Ambient
25
25
(PCB bottom side, 85 VAC & full load)
(PCB bottom side, 265 VAC & full load)
(PCB top side, 85 VAC & full load)
Figure 18
265 VAC & 15 W load (°C)
(PCB top side, 265 VAC & full load)
Infrared thermal image of REF-15W_IR_Opti3 ADAPTER
Application Note
20
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Waveforms and scope plots
12
Waveforms and scope plots
All waveforms and scope plots were recorded with a TELEDYNELECROY 606Zi oscilloscope.
12.1
Start up at low and high AC line input voltage with maximum load
C1 (Yellow)
C2 (Purple)
C3 (Blue)
C4 (Green)
: Drain voltage (VD)
: Supply voltage (VVCC)
: Feedback voltage (VFB)
: SR Gate voltage(VG_SR)
Startup time at 85 VAC & maximum load ≈ 209 ms
Figure 19
C1 (Yellow)
C2 (Purple)
C3 (Blue)
C4 (Green)
: Drain voltage (VD)
: Supply voltage (VVCC)
: Feedback voltage (VFB)
: SR Gate voltage(VG_SR)
Startup time at 265 VAC & maximum load ≈ 209 ms
Start up
12.2
Soft start
C1 (Yellow)
C2 (Purple)
C3 (Blue)
C4 (Green)
: Current sense voltage (VCS)
: Output voltage (Vout)
: Feedback voltage (VFB)
: SR Gate voltage(VG_SR)
Soft start time at 85 VAC and maximum load ≈ 12 ms
Figure 20
Soft start
Application Note
21
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Waveforms and scope plots
12.3
Start up delay and output voltage rise time
226 ms
226 ms
30 ms
30 ms
C2 (Purple)
C4 (Green)
: Mains AC voltage (VAC)
: Output voltage (Vout)
C2 (Purple)
C4 (Green)
: Mains AC voltage (VAC)
: Output voltage (Vout)
85 VAC
:start up delay time ≈ 226 ms
:output voltage rise time ≈ 30 ms
265 VAC
:start up delay time ≈ 226 ms
:output voltage rise time ≈ 30 ms
Figure 21
Start up delay and output voltage rise time
12.4
Hold up time
C2 (Purple)
C4 (Green)
: Mains AC voltage (VAC)
: Output voltage (Vout)
C2 (Purple)
C4 (Green)
: Mains AC voltage (VAC)
: Output voltage (Vout)
85 VAC
:hold up time ≈ 8 ms
265 VAC
:hold up time ≈ 110 ms
Figure 22
Hold up time
12.5
Drain and current sense voltage at maximum load
C1 (Yellow)
C2 (Purple)
C3 (Blue)
C4 (Green)
: Current sense voltage (VCS)
: Drain voltage (VDrain)
: SR drain voltage (VDrain_SR)
: SR Gate voltage(VG_SR)
C1 (Yellow)
C2 (Purple)
C3 (Blue)
C4 (Green)
: Current sense voltage (VCS)
: Drain voltage (VDrain)
: SR drain voltage (VDrain_SR)
: SR Gate voltage(VG_SR)
At 85 VAC
:VDrain_peak ≈ 318 V
:VDrain_SR_peak ≈ 17 V
At 265 VAC
: VDrain_peak ≈ 583 V
:VDrain_SR_peak ≈ 42 V
Application Note
22
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Waveforms and scope plots
Figure 23
Drain and current sense voltage at maximum load
12.6
Zero crossing point during normal operation
C1 (Yellow)
C2 (Purple)
C3 (Blue)
C4 (Green)
: Current sense voltage (VCS)
: Drain voltage (VDrain)
: SR drain voltage (VDrain_SR)
: SR Gate voltage(VG_SR)
At 85 VAC , 2nd zero crossing
Figure 24
: Current sense voltage (VCS)
: Drain voltage (VDrain)
: SR drain voltage (VDrain_SR)
: SR Gate voltage(VG_SR))
At 85 VAC , 7th zero crossing
Zero crossing
12.7
Load transient response (Dynamic load)
C3 (Blue)
: Output current (Iout)
C4 (Green)
: Output ripple voltage (Vout_ripple)
Vripple_pk_pk at 85 VAC ≈ 264 mV
(Load change from 50 mA to 3 A at 85 VAC,100 Hz,1.5
A/μs slew rate)
Probe terminal end with decoupling capacitor of 0.1
μF(ceramic) and 1 μF(Electrolytic), 20 MHz filter
Figure 25
C1 (Yellow)
C2 (Purple)
C3 (Blue)
C4 (Green)
C3 (Blue)
: Output current (Iout)
C4 (Green)
: Output ripple voltage (Vout_ripple)
Vripple_pk_pk at 265 VAC ≈ 267 mV
(Load change from 50 mA to 3 A at 85 VAC,100 Hz,1.5
A/μs slew rate)
Probe terminal end with decoupling capacitor of 0.1
μF(ceramic) and 1 μF(Electrolytic), 20 MHz filter
Load transient response
Application Note
23
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Waveforms and scope plots
12.8
Output ripple voltage at maximum load
C3 (Blue)
C4 (Green)
: Output current (Iout)
: Output ripple voltage (Vout_ripple)
Vripple_pk_pk at 85 VAC ≈ 70 mV
Probe terminal end with decoupling capacitor of 0.1
μF(ceramic) and 1 μF(Electrolytic), 20 MHz filter
Figure 26
C3 (Blue)
C4 (Green)
: Output current (Iout)
: Output ripple voltage (Vout_ripple)
Vripple_pk_pk at 265 VAC ≈ 53 mV
Probe terminal end with decoupling capacitor of 0.1
μF(ceramic) and 1 μF(Electrolytic), 20 MHz filter
Output ripple voltage at maximum load
12.9
C3 (Blue)
C4 (Green)
Output ripple voltage at burst mode 1 W load
: Output current (Iout)
: Output ripple voltage (Vout_ripple)
C3 (Blue)
C4 (Green)
: Output current (Iout)
: Output ripple voltage (Vout_ripple)
Vripple_pk_pk at 85 VAC ≈ 39 mV
Vripple_pk_pk at 265 VAC ≈ 92 mV
Probe terminal end with decoupling capacitor of 0.1
Probe terminal end with decoupling capacitor of 0.1
μF(ceramic) and 1 μF(Electrolytic), 20 MHz filter
μF(ceramic) and 1 μF(Electrolytic), 20 MHz filter
Figure 27 Output ripple voltage at burst mode 1 W load
Application Note
24
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Waveforms and scope plots
12.10
Active burst mode
6th
7th
C1 (Yellow)
: Drain voltage (VD)
C2 (Purple)
: Supply voltage (VVCC)
C3 (Blue)
: Feedback voltage (VFB)
C4 (Green)
: Zero crossing voltage (VZC)
Condition: VFB<1.2 V, NZC=7 and tblanking =24 ms
(load change form full load to 1 W load)
Figure 28
C1 (Yellow)
C2 (Purple)
C2 (Blue)
C2 (Green)
: Current sense voltage (VCS)
: Supply voltage (VVCC)
: Feedback voltage (VFB)
: Zero crossing voltage (VZC)
Condition: VFB > 4.5 V
(load change form 1W load to full load)
Active burst mode at 85 VAC
12.11
Over load protection (Auto Restart Mode)
C1 (Yellow)
: Drain voltage (VD)
C2 (Purple)
: Supply voltage (VVCC)
C3 (Blue)
: Feedback voltage (VFB)
C4 (Green)
: Output voltage (Vout)
Condition: VFB > 4.5 V & last for 30 ms blanking time
(output load change from 3 A to 4.5 A at 85 VAC)
Figure 29
Over load protection
Application Note
25
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Waveforms and scope plots
12.12
Output overvoltage protection (Latched mode)
C1 (Yellow)
: Drain voltage (VD)
C2 (Purple)
: Supply voltage (VVCC)
C2 (Blue)
: Feedback voltage (VZC)
C4 (Green)
: Output voltage (Vout)
Condition: Vout > 5.5 V (VZC>3.7 V)
(short R26 during system operation at no load and 85 VAC)
Figure 30
Output overvoltage protection
12.13
VCC under voltage/Short optocoupler protection (Auto restart mode)
C1 (Yellow)
: Drain voltage (VD)
C2 (Purple)
: Supply voltage (VVCC)
C2 (Blue)
: Feedback voltage (VFB)
C4 (Green)
: Output voltage (Vout)
Condition: VCC <10.5 V
(short the transistor of optocoupler during system operating at full load and 85 VAC)
Figure 31 VVCC under voltage/short optocoupler protection
Application Note
26
Revision 1.0
2016-03-01
15 W 5 V Adapter Reference Board
with ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
References
13
[1]
[2]
[3]
[4]
[5]
[6]
[7]
References
ICE2QS03G data sheet, Infineon Technologies AG
IR1161 data sheet, International Rectifier
IPS65R1K5CE data sheet, 650V CoolMOS™ CE Power Transistor, Infineon Technologies AG
BSZ100N06LS3 G data sheet, 60V OptiMOS™ 3 Power Transistor, Infineon Technologies AG
BAS21-03W data sheet, Infineon Technologies AG
ICE2QS03G design guide. [ANPS0027]
IR1161 dedsign notes, International Rectifier
Revision History
Major changes since the last revision
Page or Reference
--
Application Note
Description of change
First Release
27
Revision 1.0
2016-03-01
Trademarks of Infineon Technologies AG
AURIX™, C166™, CanPAK™, CIPOS™, CoolGaN™, CoolMOS™, CoolSET™, CoolSiC™, CORECONTROL™, CROSSAVE™, DAVE™, DI-POL™, DrBlade™, EasyPIM™,
EconoBRIDGE™, EconoDUAL™, EconoPACK™, EconoPIM™, EiceDRIVER™, eupec™, FCOS™, HITFET™, HybridPACK™, Infineon™, ISOFACE™, IsoPACK™,
i-Wafer™, MIPAQ™, ModSTACK™, my-d™, NovalithIC™, OmniTune™, OPTIGA™, OptiMOS™, ORIGA™, POWERCODE™, PRIMARION™, PrimePACK™,
PrimeSTACK™, PROFET™, PRO-SIL™, RASIC™, REAL3™, ReverSave™, SatRIC™, SIEGET™, SIPMOS™, SmartLEWIS™, SOLID FLASH™, SPOC™, TEMPFET™,
thinQ!™, TRENCHSTOP™, TriCore™.
Trademarks updated August 2015
Other Trademarks
All referenced product or service names and trademarks are the property of their respective owners.
Edition 2016-03-01
Published by
Infineon Technologies AG
81726 Munich, Germany
©ANREF_201511_PL21_010owners.
2016 Infineon Technologies AG.
All Rights Reserved.
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