ICE3A(B)206 5 I / 3 065I/3565 I
ICE3A(B)506 5 I / 5 565I
ICE3A(B)206 5 P /3065P/356 5P
ICE3A(B)506 5 P /5565P
Off-LineSMPSCurrentMode
Controllerwithintegrated650V
StartupCell/Dep le t io nC o olMOS™
Pow er Ma na g e m en t & Sup p l y
N e v e rs t o pt h i n k i n g .
CoolSET™-F3
Revision History:2013-04-02Datasheet
Previous Version: V2.2
PageSubjects (major changes since last revision)
29revised outline dimension for PG-DIP-8
For questions on technology, delivery and prices please contact the Infineon Technologies Offices in Germany or
the Infineon Technologies Companies and Representatives worldwide: see our webpage at http://
www.infineon.com
CoolMOS™ , CoolSET™ are trademarks of Infineon Technologies AG.
Edition 2013-04-02
Published by
Infineon Technologies AG,
81726 Munich, Germany,
The information given in this document shall in no event be regarded as a guarantee of conditions or
characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any
information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties
and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights
of any third party.
Information
For further information on technology, delivery terms and conditions and prices, please contact your nearest
Infineon Technologies Office (www.infineon.com).
Warnings
Due to technical requirements, components may contain dangerous substances. For information on the types in
question, please contact your nearest Infineon Technologies Office.
Infineon Technologies Components may be used in life-support devices or systems only with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support
devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
be endangered.
Off-Line SMPS Current Mode Controller
with integrated 650V Startup Cell/
Depletion CoolMOS™
Product Highlights
• Best in class in DIP7, DIP8, TO220/I2Pak packages
• Active Burst Mode to reach the lowest Standby Power
Requirements < 100mW
• Protection features (Auto Restart Mode) to increase
robustness and safety of the system
• Adjustable Blanking Window for high load jumps to
increase system reliability
• Isolated drain package for TO220/I2Pak
• Wide creepage distance for DIP7/TO220/I2Pak
• Wide power class of products for various applications
• Pb-free lead plating for all packages; RoHS compliant
CoolSET™-F3
PG-DIP-7-1
PG-DIP-8
PG-TO220-6-46 (I2Pak)
PG-TO220-6-47
Features
•650V avalanche rugged CoolMOS™ with built in
switchable Startup Cell
•Active Burst Mode for lowest Standby Power
@ light load controlled by Feedback signal
•Fast load jump response in Active Burst Mode
•67/100 kHz fixed switching frequency
•Auto Restart Mode for Overtemperature Detection
•Auto Restart Mode for Overvoltage Detection
•Auto Restart Mode for Overload and Open Loop
•Auto Restart Mode for VCC Undervoltage
•Blanking Window for short duration high current
•User defined Soft Start
•Minimum of external components required
•Max Duty Cycle 72%
•Overall tolerance of Current Limiting < ±5%
•Internal PWM Leading Edge Blanking
•Soft driving for low EMI
Typical Application
C
85 ... 270 VAC
Power Management
Bulk
VCC
Description
The new generation CoolSET™-F3 provides Active Burst
Mode to reach the lowest Standby Power Requirements
<100mW at no load. As the controller is always active
during Active Burst Mode, there is an immediate response
on load jumps without any black out in the SMPS. In Active
Burst Mode the ripple of the output voltage can be reduced
<1%. Furthermore, to increase the robustness and safety
of the system, the device enters into Auto Restart Mode in
the cases of Overtemperature, VCC Overvoltage, Output
Open Loop or Overload and VCC Undervoltage. By means
of the internal precise peak current limitation, the
dimension of the transformer and the secondary diode can
be lowered which leads to more cost efficiency. An
adjustable blanking window prevents the IC from entering
Auto Restart or Active Burst Mode unintentionally during
high load jumps. The CoolSET™-F3 family consists a wide
power class range of products for various applications.
+
Converter
DC Output
-
C
VCC
Startup Cell
Snubber
Drain
PWM Controller
GND
Current Mode
Precise Low Tolerance Peak
Current Limitation
Control
Unit
Active Burst Mode
AutoRestart Mode
Depl.
CoolMOS™
CoolSET™-F3
CS
FB
SoftS
R
Sense
C
SoftS
Version 2.3302 Apr 2013
Overview
CoolSET™-F3
TypePackageV
DS
F
OSC
R
DSon
1)
230VAC ±15%
2)
85-265 VAC
ICE3A0365PG-DIP-8650V100kHz6.4522W10W
ICE3A0565PG-DIP-8650V100kHz4.7025W12W
ICE3A1065PG-DIP-8650V100kHz2.9532W16W
ICE3A1565PG-DIP-8650V100kHz1.7042W20W
ICE3A2065PG-DIP-8650V100kHz0.9257W28W
ICE3A2565PG-DIP-8650V100kHz0.6568W33W
ICE3B0365PG-DIP-8650V67kHz6.4522W10W
ICE3B0565PG-DIP-8650V67kHz4.7025W12W
ICE3B1065PG-DIP-8650V67kHz2.9532W16W
ICE3B1565PG-DIP-8650V67kHz1.7042W20W
ICE3B2065PG-DIP-8650V67kHz0.9257W28W
ICE3B2565PG-DIP-8650V67kHz0.6568W33W
1)
typ @ T=25°C
2)
Calculated maximum input power rating at Ta=75°C, Tj=125°C and without copper area as heat sink.
TypePackageV
DS
F
OSC
R
DSon
1)
230VAC ±15%
2)
85-265 VAC
ICE3A0565ZPG-DIP-7-1650V100kHz4.7025W12W
ICE3A2065ZPG-DIP-7-1650V100kHz0.9257W28W
1)
typ @ T=25°C
2)
Calculated maximum input power rating at Ta=75°C, Tj=125°C and without copper area as heat sink.
2)
2)
Version 2.3402 Apr 2013
CoolSET™-F3
TypePackageV
DS
F
OSC
R
DSon
1)
230VAC
±15%
2)
85-265 VAC
ICE3A2065IPG-TO-220-6-46650V100kHz3.00102W50W
ICE3A3065IPG-TO-220-6-46650V100kHz2.10128W62W
ICE3A3565IPG-TO-220-6-46650V100kHz1.55170W83W
ICE3A5065IPG-TO-220-6-46650V100kHz0.95220W105W
ICE3A5565IPG-TO-220-6-46650V100kHz0.79240W120W
ICE3B2065IPG-TO-220-6-46650V67kHz3.00102W50W
ICE3B3065IPG-TO-220-6-46650V67kHz2.10128W62W
ICE3B3565IPG-TO-220-6-46650V67kHz1.55170W83W
ICE3B5065IPG-TO-220-6-46650V67kHz0.95220W105W
ICE3B5565IPG-TO-220-6-46650V67kHz0.79240W120W
ICE3A2065PPG-TO-220-6-47650V100kHz3.00102W50W
ICE3A3065PPG-TO-220-6-47650V100kHz2.10128W62W
ICE3A3565PPG-TO-220-6-47650V100kHz1.55170W83W
ICE3A5065PPG-TO-220-6-47650V100kHz0.95220W105W
ICE3A5565PPG-TO-220-6-47650V100kHz0.79240W120W
ICE3B2065PPG-TO-220-6-47650V67kHz3.00102W50W
ICE3B3065PPG-TO-220-6-47650V67kHz2.10128W62W
ICE3B3565PPG-TO-220-6-47650V67kHz1.55170W83W
ICE3B5065PPG-TO-220-6-47650V67kHz0.95220W105W
ICE3B5565PPG-TO-220-6-47650V67kHz0.79240W120W
1)
typ @ T=25°C
2)
Calculated maximum continuous input power in an open frame design at Ta=50°C, Tj=125°C and R
--7VCCController Supply Voltage
8GNDController Ground
1)
at Tj= 110°C
650V1)Depl. CoolMOS™ Drain
Package PG-DIP-7-1
1
FB
CS
DrainDrain
Figure 1Pin Configuration PG-DIP-8(top view)
Note: Pin 4 and 5 are shorted within the DIP 8 package.
2
3
4
8
7
6
5
GNDSoftS
VCC
n.c.
1
FB
CS
n.c.Drain
Figure 2Pin Configuration PG-DIP-7-1(top view)
2
3
4
8
7
5
GNDSoftS
VCC
Version 2.3702 Apr 2013
CoolSET™-F3
Pin Configuration and Functionality
1.3Pin Configuration with PG-TO220-6-46
PinSymbolFunction
1Drain
650V1)Depl. CoolMOS™ Drain
3CSCurrent Sense/
650V1)Depl. CoolMOS™ Source
4GNDController Ground
5VCCController Supply Voltage
6SoftSSoft-Start
7FBFeedback
1)
at Tj= 110°C
Package PG-TO220-6-46 (I2Pak)
1.4Pin Configuration with PG-TO220-6-47
PinSymbolFunction
1Drain
650V1)Depl. CoolMOS™ Drain
3CSCurrent Sense/
650V1)Depl. CoolMOS™ Source
4GNDController Ground
5VCCController Supply Voltage
6SoftSSoft-Start
7FBFeedback
1)
at Tj= 110°C
Package PG-TO220-6-47
1
2345 67
Drain
CS
GND
VCC
SoftS
FB
Figure 3Pin Configuration PG-TO220-6-46 I2Pak
(front view)
Figure 4Pin Configuration PG-TO220-6-47
1
234567
Drain
(front view)
CS
GND
VCC
SoftS
FB
Version 2.3802 Apr 2013
1.5Pin Functionality
SoftS (Soft Start & Auto Restart Control)
The SoftS pin combines the functions of Soft Start
during Start Up and error detection for Auto Restart
Mode. These functions are implemented and can be
adjusted by means of an external capacitor at SoftS to
ground. This capacitor also provides an adjustable
blanking window for high load jumps, before the IC
enters into Auto Restart Mode.
FB (Feedback)
The information about the regulation is provided by the
FB Pin to the internal Protection Unit and to the internal
PWM-Comparator to control the duty cycle. The FBSignal controls in case of light load the Active Burst
Mode of the controller.
CS (Current Sense)
The Current Sense pin senses the voltage developed
on the series resistor inserted in the source of the
integrated Depl. CoolMOS™. If CS reaches the internal
threshold of the Current Limit Comparator, the Driver
output is immediately switched off. Furthermore the
current information is provided for the PWMComparator to realize the Current Mode.
CoolSET™-F3
Pin Configuration and Functionality
Drain (Drain of integrated Depl. CoolMOS™)
Pin Drain is the connection to the Drain of the internal
Depl. CoolMOSTM.
VCC (Power supply)
The VCC pin is the positive supply of the IC. The
operating range is between 8.5V and 21V.
GND (Ground)
The GND pin is the ground of the controller.
Version 2.3902 Apr 2013
2Representative Blockdiagram
CoolSET™-F3
Representative Blockdiagram
Figure 5Representative Blockdiagram
Version 2.31002 Apr 2013
3Functional Description
CoolSET™-F3
Functional Description
All values which are used in the functional description
are typical values. For calculating the worst cases the
min/max values which can be found in section 4
Electrical Characteristics have to be considered.
3.1Introduction
CoolSET™-F3 is the further development of the
CoolSET™-F2 to meet the requirements for the lowest
Standby Power at minimum load and no load
conditions. A new fully integrated Standby Power
concept is implemented into the IC in order to keep the
application design easy. Compared to CoolSET™-F2
no further external parts are needed to achieve the
lowest Standby Power. An intelligent Active Burst
Mode is used for this Standby Mode. After entering this
mode there is still a full control of the power conversion
by the secondary side via the same optocoupler that is
used for the normal PWM control. The response on
load jumps is optimized. The voltage ripple on V
minimized. V
is further on well controlled in this
out
mode.
The usually external connected RC-filter in the
feedback line after the optocoupler is integrated in the
IC to reduce the external part count.
Furthermore a high voltage Startup Cell is integrated
into the IC which is switched off once the Undervoltage
Lockout on-threshold of 15V is exceeded. This Startup
Cell is part of the integrated Depl. CoolMOS™. The
external startup resistor is no longer necessary as this
Startup Cell is connected to the Drain. Power losses
are therefore reduced. This increases the efficiency
under light load conditions drastically.
The Soft-Start capacitor is also used for providing an
adjustable blanking window for high load jumps. During
this time window the overload detection is disabled.
With this concept no further external components are
necessary to adjust the blanking window.
An Auto Restart Mode is implemented in the IC to
reduce the average power conversion in the event of
malfunction or unsafe operating condition in the SMPS
system.Thisfeatureincreasesthesystem’s
robustness and safety which would otherwise lead to a
destruction of the SMPS. Once the malfunction is
removed, normal operation is automatically initiated
after the next Start Up Phase.
The internal precise peak current limitation reduces the
costs for the transformer and the secondary diode. The
influence of the change in the input voltage on the
power limitation can be avoided together with the
integratedPropagationDelayCompensation.
Therefore the maximum power is nearly independent
on the input voltage which is required for wide range
SMPS. There is no need for an extra over-sizing of the
SMPS, e.g. the transformer or the secondary diode.
out
3.2Power Management
VCCDrain
Startup Cell
Depl. CoolMOS™
Power
Undervoltage Lockout
8.5V
15V
is
T1
SoftS
Figure 6Power Management
The Undervoltage Lockout monitors the external
supply voltage V
. When the SMPS is plugged to the
VCC
main line the internal Startup Cell is biased and starts
to charge the external capacitor C
connected to the VCC pin. This VCC charge current
which is provided by the Startup Cell from the Drain pin
is 1.05mA. When V
V
=15V the internal voltage reference and bias
CCon
exceeds the on-threshold
VCC
circuit are switched on. Then the Startup Cell is
switched off by the Undervoltage Lockout and therefore
no power losses present due to the connection of the
Startup Cell to the Drain voltage. To avoid uncontrolled
ringing at switch-on a hysteresis is implemented. The
switch-off of the controller can only take place after
Active Mode was entered and V
The maximum current consumption beforethe
controller is activated is about 160mA.
When V
falls below the off-threshold V
VCC
internal reference is switched off and the Power Down
reset let T1 discharging the soft-start capacitor C
pin SoftS. Thus it is ensured that at every startup cycle
the voltage ramp at pin SoftS starts at zero.
Management
Internal Bias
Voltage
Reference
Auto Restart
Mode
Active Burst
Mode
VCC
falls below 8.5V.
VCC
CCoff
6.5V
which is
=8.5V the
SoftS
at
Version 2.31102 Apr 2013
CoolSET™-F3
Functional Description
The internal Voltage Reference is switched off if Auto
Restart Mode is entered. The current consumption is
then reduced to 300mA.
Once the malfunction condition is removed, this block
will then turn back on. The recovery from Auto Restart
Mode does not require disconnecting the SMPS from
the AC line.
When Active Burst Mode is entered, the internal Bias is
switched off in order to reduce the current consumption
to below 1.05mA while keeping the Voltage Reference
active as this is necessary in this mode.
3.3Startup Phase
6.5V
3.25k
R
SoftS
T2
T3
1V
SoftS
DC
which is controlled by comparator C7 since
max
comparator C2 blocks the gate G7 (see Figure 7). This
maximum charge current in the very first stage when
V
is below 1V, is limited to 1.32mA.
SoftS
V
SoftS
max.StartupPhase
5.4V
4V
1V
max.SoftStart Phase
DC
DC
DC
max
1
2
t
C
SoftS
4V
0.85V
SoftStart
C7
C2
PWMOP
Soft-Start
Comparator
&
G7
x3.7
GateDriver
CS
Figure 7Soft Start
At the beginning of the Startup Phase, the IC provides
a Soft Start duration whereby it controls the maximum
primary current by means of a duty cycle limitation. A
signal V
capacitor C
resistor R
which is generated by the external
SoftS
in combination with the internal pull up
Softs
, determines the duty cycle until V
SoftS
SoftS
exceeds 4V.
When the Soft Start begins, C
is immediately
SoftS
charged up to approx. 1V by T2. Therefore the Soft
Start Phase takes place between 1V and 4V. Above
V
= 4V there is no longer duty cycle limitation
SoftsS
t1t2
t
Figure 8Startup Phase
By means of this extra charge stage, there is no delay
in the beginning of the Startup Phase when there is still
no switching. Furthermore Soft Start is finished at 4V to
have faster the maximum power capability. The duty
cycles DC1and DC2are depending on the mains and
the primary inductance of the transformer. The
limitation of the primary current by DC2is related to
V
= 4V. But DC1is related to a maximum primary
SoftS
current which is limited by the internal Current Limiting
with CS = 1V. Therefore the maximum Startup Phase
is divided into a Soft Start Phase until t1 and a phase
from t1 until t2 where maximum power is provided if
demanded by the FB signal.
Version 2.31202 Apr 2013
CoolSET™-F3
Functional Description
3.4PWM Section
0.72
Oscillator
DutyCycle
max
Clock
SoftStart
Comparator
PWM
Comparator
Current
Limiting
Figure 9PWM Section
1
G8
3.4.3Gate Driver
PWMSection
VCC
PWM-Latch
1
Gate
FF1
CoolMOS™
Q
GateDriver
&
G9
Internal
CoolMOS™
Gate
Gate Driver
Figure 10Gate Driver
The driver-stage is optimized to minimize EMI and to
provide high circuit efficiency. This is done by reducing
S
R
the switch on slope when exceeding the internal
CoolMOS™ threshold. This is achieved by a slope
control of the rising edge at the driver’s output (see
Figure 11).
3.4.1Oscillator
The oscillator generates a fixed frequency. The
switching frequency of ICE3Axx65x is f
and for ICE3Bxx65x f
= 67kHz. A resistor, a
OSC
OSC
= 100kHz
capacitor and a current source and current sink which
determine the frequency are integrated. The charging
and discharging current of the implemented oscillator
capacitor are internally trimmed, in order to achieve a
very accurate switching frequency. The ratio of
controlled charge to discharge current is adjusted to
reach a maximum duty cycle limitation of D
max
=0.72.
3.4.2PWM-Latch FF1
The oscillator clock output provides a set pulse to the
PWM-Latch when initiating the internal CoolMOS™
conduction. After setting the PWM-Latch can be reset
by the PWM comparator, the Soft Start comparator or
the Current-Limit comparator. In case of resetting, the
driver is shut down immediately.
(internal)V
5V
Gate
ca.t =130ns
t
Figure 11Gate Rising Slope
Thus the leading switch on spike is minimized. When
the integrated CoolMOS™ is switched off, the falling
shape of the driver is slowed down when reaching 2V
to prevent an overshoot below ground. Furthermore the
driver circuit is designed to eliminate cross conduction
of the output stage.
During powerup when VCC is below the undervoltage
lockout threshold V
is low to disable power transfer to the seconding side.
, the output of the Gate Driver
VCCoff
Version 2.31302 Apr 2013
CoolSET™-F3
Functional Description
3.5Current Limiting
PWMLatch
FF1
CurrentLimiting
Propagation-Delay
Compensation
V
csth
C10
PWM-OP
&
G10
ActiveBurst
Mode
C12
0.257V
10k
CS
Figure 12Current Limiting Block
There is a cycle by cycle Current Limiting realized by
the Current-Limit comparator C10 to provide an
overcurrent detection. The source current of the
internal CoolMOS™ is sensed via an external sense
resistor R
is transformed to a sense voltage V
into the pin CS. If the voltage V
internal threshold voltage V
immediately turns off the gate drive by resetting the
PWM Latch FF1. A Propagation Delay Compensation
is added to support the immediate shut down without
delay of the internal CoolMOS™ in case of Current
Limiting. The influence of the AC input voltage on the
maximum output power can thereby be avoided.
To prevent the Current Limiting from distortions caused
by leading edge spikes a Leading Edge Blanking is
integratedin thecurrent sense path for the
comparators C10, C12 and the PWM-OP.
The output of comparator C12 is activated by the Gate
G10 if Active Burst Mode is entered. Once activated the
current limiting is thereby reduced to 0.257V. This
voltage level determines the power level when the
Active Burst Mode is left if there is a higher power
demand.
. By means of R
Sense
Sense
the comparator C10
csth
Leading
Edge
Blanking
220ns
1pF
D1
the source current
which is fed
Sense
exceeds the
Sense
3.5.1Leading Edge Blanking
V
Sense
V
csth
t
LEB
=220ns
t
Figure 13Leading Edge Blanking
Each time when the internal CoolMOS™ is switched
on, a leading edge spike is generated due to the
primary-side capacitances and secondary-side rectifier
reverse recovery time. This spike can cause the gate
drive to switch off unintentionally. To avoid a premature
termination of the switching pulse, this spike is blanked
out with a time constant of t
time, the gate drive will not be switched off.
3.5.2Propagation Delay Compensation
In case of overcurrent detection, the switch-off of the
internal CoolMOS™ is delayed due to the propagation
delay of the circuit. This delay causes an overshoot of
the peak current I
which depends on the ratio of dI/
peak
dt of the peak current (see Figure 14).
I
Sense
I
peak2
I
peak1
I
Limit
I
Overshoot2
Figure 14Current Limiting
The overshoot of Signal2 is bigger than of Signal1 due
to the steeper rising waveform. This change in the
slope is depending on the AC input voltage.
Propagation Delay Compensation is integrated to limit
the overshoot dependency on dI/dt of the rising primary
current. That means the propagation delay time
between exceeding the current sense threshold V
and the switch off of the internal CoolMOS™ is
compensated over temperature within a wide range.
= 220ns. During this
LEB
Signal2Signal1
t
PropagationDelay
I
Overshoot1
t
csth
Version 2.31402 Apr 2013
CoolSET™-F3
Functional Description
Current Limiting is now possible in a very accurate way.
E.g. I
= 0.5A with R
peak
= 2. Without Propagation
Sense
Delay Compensation the current sense threshold is set
to a static voltage level V
dI/dt = 0.4A/µs, that means dV
propagation delay time of i.e. t
leads then to an I
peak
=1V. A current ramp of
csth
/dt = 0.8V/µs, and a
Sense
Propagatio n Delay
=180ns
overshoot of 14.4%. By means of
propagation delay compensation the overshoot is only
about 2% (see Figure 15).
dV
Sense
without compensation
V
s
with compensation
V
1,3
1,25
1,2
1,15
Sense
1,1
V
1,05
1
0,95
0,9
00,2 0,4 0,6 0,811,2 1,4 1,6 1,82
dt
Figure 15Overcurrent Shutdown
The Propagation Delay Compensation is realized by
means of a dynamic threshold voltage V
(see Figure
csth
16). In case of a steeper slope the switch off of the
driver is earlier to compensate the delay.
V
OSC
max. DutyCycle
3.6Control Unit
The Control Unit contains the functions for Active Burst
Mode and Auto Restart Mode. The Active Burst Mode
and the Auto Restart Mode are combined with an
Adjustable Blanking Window which is depending on the
external Soft Start capacitor. By means of this
Adjustable Blanking Window, the IC avoids entering
into these two modes accidentally. Furthermore it also
provides a certain time whereby the overload detection
is delayed. This delay is useful for applications which
normally works with a low current and occasionally
require a short duration of high current.
3.6.1Adjustable Blanking Window
SoftS
6.5V
R
SoftS
5k
4.4V
1
S1
5.4V
G2
C3
off time
V
Sense
V
csth
PropagationDelay
Signal1Signal2
Figure 16Dynamic Voltage Threshold V
csth
4.8V
&
C4
G5
Auto
Restart
Mode
Active
t
Burst
Mode
&
FB
G6
C5
1.32V
t
ControlUnit
Figure 17Adjustable Blanking Window
V
is clamped at 4.4V by the closed switch S1 after
SoftS
the SMPS is settled. If overload occurs VFBis
exceeding 4.8V. Auto Restart Mode can’t be entered as
the gate G5 is still blocked by the comparator C3. But
after VFBhas exceeded 4.8V the switch S1 is opened
Version 2.31502 Apr 2013
CoolSET™-F3
Functional Description
via the gate G2. The external Soft Start capacitor can
now be charged further by the integrated pull up
resistor R
G5 and G6 once V
. The comparator C3 releases the gates
SoftS
has exceeded 5.4V. Therefore
Softs
there is no entering of Auto Restart Mode possible
during this charging time of the external capacitor
C
. The same procedure happens to the external
SoftS
Soft Start capacitor if a low load condition is detected
by comparator C5 when VFBis falling below 1.32V.
Only after V
has exceeded 5.4V and VFBis still
SoftS
below 1.32V Active Burst Mode is entered.
3.6.2Active Burst Mode
The controller provides Active Burst Mode for low load
conditions at V
. Active Burst Mode increases
OUT
significantly the efficiency at light load conditions while
supporting a low ripple on V
and fast response on
OUT
load jumps. During Active Burst Mode which is
controlled only by the FB signal the IC is always active
and can therefore immediately response on fast
changes at the FB signal. The Startup Cell is kept
switched off to avoid increased power losses for the
self supply.
SoftS
6.5V
R
5k
4.4V
SoftS
InternalBias
The Active Burst Mode is located in the Control Unit.
Figure 18 shows the related components.
3.6.2.1Entering Active Burst Mode
The FB signal is always observed by the comparator
C5 if the voltage level falls below 1.32V. In that case the
switch S1 is released which allows the capacitor C
SoftS
to be charged starting from the clamped voltage level
at 4.4V in normal operating mode. If V
SoftS
exceeds
5.4V the comparator C3 releases the gate G6 to enter
the Active Burst Mode. The time window that is
generated by combining the FB and SoftS signals with
gate G6 avoids a sudden entering of the Active Burst
Mode due to large load jumps. This time window can be
adjusted by the external capacitor C
SoftS
.
After entering Active Burst Mode a burst flag is set and
the internal bias is switched off in order to reduce the
current consumption of the IC down to approx. 1.05mA.
In this Off State Phase the IC is no longer self supplied
so that therefore C
has to provide the VCC current
VCC
(see Figure 19). Furthermore gate G11 is then released
to start the next burst cycle once VFBhas 3.4V
exceeded.
It has to be ensured by the application that the VCC
remains above the Undervoltage Lockout Level of 8.5V
to avoid that the Startup Cell is accidentally switched
on. Otherwise power losses are significantly increased.
The minimum VCC level during Active Burst Mode is
depending on the load conditions and the application.
The lowest VCC level is reached at no load conditions
at V
OUT
.
S1
C3
5.4V
4.8V
C4
FB
1.32V
4.0V
3.4V
C5
C6a
C6b
Control Unit
Figure 18Active Burst Mode
&
G6
&
G11
Current
Limiting
G10
Active
Burst
Mode
3.6.2.2Working in Active Burst Mode
After entering the Active Burst Mode the FB voltage
&
PWM section. Comparator C6a observes the FB signal
rises as V
starts to decrease due to the inactive
OUT
if the voltage level 4V is exceeded. In that case the
internal circuit is again activated by the internal Bias to
start with switching. As now in Active Burst Mode the
gate G10 is released the current limit is only 0.257V to
reduce the conduction losses and to avoid audible
noise. If the load at V
is still below the starting level
OUT
for the Active Burst Mode the FB signal decreases
down to 3.4V. At this level C6b deactivates again the
internal circuit by switching off the internal Bias. The
gate G11 is released as after entering Active Burst
Mode the burst flag is set. If working in Active Burst
Mode the FB voltage is changing like a saw tooth
between 3.4V and 4V (see Figure 19).
3.6.2.3Leaving Active Burst Mode
The FB voltage immediately increases if there is a high
load jump. This is observed by comparator C4. As the
current limit is ca. 26% during Active Burst Mode a
certain load jump is needed that FB can exceed 4.8V.
At this time C4 resets the Active Burst Mode which also
Version 2.31602 Apr 2013
CoolSET™-F3
Functional Description
blocks C12 by the gate G10. Maximum current can now
be provided to stabilize V
V
FB
4.80V
4.00V
3.40V
1.32V
V
SoftS
5.40V
4.40V
V
CS
1.00V
0.257V
V
VCC
Currentlimit levelduring
ActiveBurstMode
EnteringActive
BurstMode
BlankingWindow
OUT
.
LeavingActive
BurstMode
t
t
t
3.6.3Protection Mode (Auto Restart Mode)
In order to increase the SMPS system’s robustness
and safety, the IC provides the Auto Restart Mode as a
protection feature. The Auto Restart Mode is entered
upon detection of the following faults in the system:
•VCC Overvoltage
•Overtemperature
•Overload
•Open Loop
•VCC Undervoltage
•Short Optocoupler
SoftS
C
SoftS
FB
S1
4.4V
R
SoftS
5k
VCC
C1
17V
4.0V
4.8V
C11
C4
6.5V
&
G1
ThermalShutdown
Tj>140°C
Spike
Blanking
8.0us
&
G5
Control Unit
AutoRestart
Mode
8.5V
I
VCC
7.2mA
1.05mA
V
OUT
Max.Ripple<1%
Figure 19Signals in Active Burst Mode
C3
5.4V
Figure 20Auto Restart Mode
The VCC voltage is observed by comparator C1 if 17V
t
is exceeded. The output of C1 is combined with both
the output of C11 which checks for SoftS<4.0V, and the
output of C4 which checks for FB>4.8V. Therefore the
overvoltage detection is can only active during Soft
Start Phase(SoftS<4.0V) and when FB signal is
outside the operating range > 4.8V. This means any
small voltage overshoots of V
during normal
VCC
operating cannot trigger the Auto Restart Mode.
t
In order to ensure system reliability and prevent any
false activation, a blanking time is implemented before
the IC can enter into the Auto Restart Mode. The output
of the VCC overvoltage detection is fed into a spike
blanking with a time constant of 8.0ms.
The other fault detection which can result in the Auto
Restart Mode and has this 8.0ms blanking time is the
Overtemperature detection. This block checks for a
t
junction temperature of higher than 140°C for
malfunction operation.
Voltage
Reference
Version 2.31702 Apr 2013
Once the Auto Restart Mode is entered, the internal
Voltage Reference is switched off in order to reduce the
current consumption of the IC as much as possible. In
this mode, the average current consumption is only
300mA as the only working block is the Undervoltage
Lockout(UVLO) which controls the Startup Cell by
switching on/off at V
VCCon/VVCCoff
.
As there is no longer a self supply by the auxiliary
winding, VCC starts to drop. The UVLO switches on the
integrated Startup Cell when VCC falls below 8.5V. It
will continue to charge VCC up to 15V whereby it is
switched off again and the IC enters into the Start Up
Phase.
As long as all fault conditions have been removed, the
IC will automatically power up as usual with switching
cycle at the GATE output after Soft Start duration. Thus
the name Auto Restart Mode.
Other fault detections which are active in normal
operation is the sensing for Overload, Open Loop and
VCC undervoltage conditions. In the first 2 cases, FB
will rise above 4.8V which will be observed by C4. At
this time, S1 is released such that V
its earlier clamp voltage of 4.4V. If V
can rise from
SoftS
exceeds 5.4V
SoftS
which is observed by C3, Auto Restart Mode is entered
as both inputs of the gate G5 are high.
This charging of the Soft Start capacitor from 4.4V to
5.4V defines a blanking window which prevents the
system from entering into Auto Restart Mode unintentionally during large load jumps. In this event, FB
will rise close to 6.5V for a short duration before the
loop regulates with FB less than 4.8V. This is the same
blanking time window as for the Active Burst Mode and
can therefore be adjusted by the external C
SoftS
.
In the case of VCC undervoltage, ie. VCC falls below
8.5V, the IC will be turn off with the Startup Cell
charging VCC as described earlier in this section. Once
VCC is charged above 15V, the IC will start a new
startup cycle. The same procedure applies when the
system is under Short Optocoupler fault condition, as it
will lead to VCC undervoltage.
CoolSET™-F3
Functional Description
Version 2.31802 Apr 2013
CoolSET™-F3
Electrical Characteristics
4Electrical Characteristics
Note:All voltages are measured with respect to ground (Pin 8). The voltage levels are valid if other ratings are
not violated.
4.1Absolute Maximum Ratings
Note:Absolute maximum ratings are defined as ratings, which when being exceeded may lead to destruction
of the integrated circuit. For the same reason make sure, that any capacitor that will be connected to pin 7
(VCC) is discharged before assembling the application circuit.
ParameterSymbolLimit ValuesUnitRemarks
min.max.
Drain Source Voltage
ICE3Axx65/xx65I/xx65P
ICE3Bxx65/xx65I/xx65P
Pulse drain current, t
p
limited by max. Tj=150°C
ICE3x0365I
ICE3x0565
ICE3A0565Z
ICE3x1065I
ICE3x1565I
ICE3x2065
ICE3A2065Z
ICE3x2565I
ICE3x2065I
ICE3x2065P
ICE3x3065I
ICE3x3065P
ICE3x3565I
ICE3x3565P
V
DS
D_Puls1
I
D_Puls2
D_Puls3
D_Puls4
I
D_Puls5
D_Puls6
I
D_Puls7
I
D_Puls8
I
D_Puls9
-650VTj=110°C
-1.6A
-2.3A
-3.4A
-6.1A
-10.3A
-15.7A
-3.4A
-4.3A
-6.5A
ICE3x5065I
I
D_Puls10
-9.4A
ICE3x5065P
ICE3x5565I
I
D_Puls11
-10.7A
ICE3x5565P
Version 2.31902 Apr 2013
CoolSET™-F3
Electrical Characteristics
ParameterSymbolLimit ValuesUnitRemarks
min.max.
Avalanche energy,
repetitive tARlimited by
max. Tj=150°C
1)
ICE3x0365E
ICE3x0565
ICE3A0565Z
ICE3x1065E
ICE3x1565E
ICE3x2065
ICE3A2065Z
ICE3x2565E
ICE3x2065I
ICE3x2065P
ICE3x3065I
ICE3x3065P
ICE3x3565I
ICE3x3565P
ICE3x5065I
ICE3x5065P
ICE3x5565I
ICE3x5565P
E
E
E
E
E
E
E
AR1
AR2
AR3
AR4
AR5
AR6
AR7
AR8
AR9
AR10
AR11
-0.005mJ
-0.01mJ
-0.07mJ
-0.15mJ
-0.40mJ
-0.47mJ
-0.07mJ
-0.11mJ
-0.17mJ
-0.40mJ
-0.44mJ
Version 2.32002 Apr 2013
CoolSET™-F3
Electrical Characteristics
ParameterSymbolLimit ValuesUnitRemarks
min.max.
Avalanche current,
repetitive tARlimited by
max. Tj=150°C
ICE3x0365I
ICE3x0565
ICE3A0565Z
ICE3x1065I
ICE3x1565I
ICE3x2065
ICE3A2065Z
ICE3x2565I
ICE3x2065I
ICE3x2065P
ICE3x3065I
ICE3x3065P
ICE3x3565I
ICE3x3565P
ICE3x5065I
ICE3x5065P
ICE3x5565I
ICE3x5565P
AR1
I
AR2
AR3
AR4
I
AR5
AR6
I
AR7
I
AR8
I
AR9
I
AR10
I
AR11
-0.3A
-0.5A
-1.0A
-1.5A
-2.0A
-2.5A
-2.0A
-3.0A
-3.5A
-5.0A
-5.5A
1)
Repetitive avalanche causes additional power losses that can be calculated as PAV=EAR*f
Min. Duty CycleD
PWM-OP GainA
Voltage Ramp Max LevelV
VFBOperating Range Min LevelV
ICE3Axx65
ICE3Axx65Z
ICE3Axx65I
ICE3Axx65P
ICE3Bxx65
ICE3Bxx65I
ICE3Bxx65P
f
OSC1
f
OSC2
f
OSC1
f
OSC2
max
min
V
Max-Ramp
FBmin
92100108kHz
94100106kHzTj= 25°C
616773kHz
636771kHzTj= 25°C
0.670.720.77
0--VFB< 0.3V
3.53.73.9
-0.85-V
0.30.7-V
VFBOperating Range Max levelV
FB Pull-Up ResistorR
SoftS Pull-Up ResistorR
1)
The parameter is not subjected to production test - verified by design/characterization
FBmax
FB
SoftS
--4.75VCS=1V, limited by
162027kW
395062kW
Comparator C4
1)
Version 2.32502 Apr 2013
CoolSET™-F3
Electrical Characteristics
4.3.5Control Unit
ParameterSymbolLimit ValuesUnitTest Condition
min.typ.max.
Deactivation Level for SoftS
Comparator C7 by C2
Clamped V
Voltage during
SoftS
Normal Operating Mode
Activation Limit of
Comparator C3
SoftS Startup CurrentI
Over Load & Open Loop Detection
Limit for Comparator C4
Active Burst Mode Level for
Comparator C5
Active Burst Mode Level for
Comparator C6a
Active Burst Mode Level for
Comparator C6b
Overvoltage Detection LimitV
Thermal Shutdown
1)
Spike Blankingt
V
SoftSC2
V
SoftSclmp
V
SoftSC3
SoftSstart
V
FBC4
V
FBC5
V
FBC6a
V
FBC6b
VCCOVP
T
jSD
Spike
3.854.004.15VVFB> 5V
4.234.404.57VVFB= 4V
5.205.405.60VVFB> 5V
-1.3-mAV
4.624.804.98VV
1.231.301.37VV
SoftS
SoftS
SoftS
= 0V
> 5.6V
> 5.6V
3.854.004.15VAfter Active Burst
Mode is entered
3.253.403.55VAfter Active Burst
Mode is entered
16.117.118.1VVFB> 5V
V
< 4.0V
SoftS
130140150°C
-8.0-ms
1)
The parameter is not subjected to production test - verified by design/characterization
Note:The trend of all the voltage levels in the Control Unit is the same regarding the deviation except V
and V
VCCPD
4.3.6Current Limiting
ParameterSymbolLimit ValuesUnitTest Condition
min.typ.max.
Peak Current Limitation
(incl. Propagation Delay)
Peak Current Limitation during
V
csth
0.971.021.07VdV
/ dt = 0.6V/ms
sense
(see Figure 16)
V
CS2
0.2320.2570.282V
Active Burst Mode
Leading Edge Blankingt
CS Input Bias CurrentI
LEB
CSbias
-220-nsV
SoftS
= 4.4V
-1.0-0.20mAVCS=0V
VCCOVP
Version 2.32602 Apr 2013
CoolSET™-F3
Electrical Characteristics
4.3.7CoolMOS™ Section
ParameterSymbolLimit ValuesUnitTest Condition
min.typ.max.
Drain Source Breakdown Voltage
ICE3Axx65/xx65I/xx65P
ICE3Bxx65/xx65I/xx65P
Drain Source
On-Resistance
ICE3A0365
ICE3B0365
ICE3A0565
ICE3A0565Z
ICE3B0565
ICE3A1065
ICE3B1065
ICE3A1565
ICE3B1565
ICE3A2065
ICE3A2065Z
ICE3B2065
ICE3A2565
ICE3B2565
Drain Source
On-Resistance
ICE3A2065I
ICE3A2065P
ICE3B2065I
ICE3B2065P
V
(BR)DSS
R
DSon1
R
DSon2
R
DSon3
R
DSon4
R
DSon5
R
DSon6
R
DSon7
600
650
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
6.45
13.7
4.70
10.0
2.95
6.6
1.70
3.57
0.92
1.93
0.65
1.37
3.00
6.6
-
-
7.50
17.0
5.44
12.5
3.42
7.56
1.96
4.12
1.05
2.22
0.75
1.58
3.47
7.63
V
V
W
W
Tj= 25°C
Tj= 110°C
Tj= 25°C
Tj=125°C
1)
at ID= 0.3A
W
W
Tj= 25°C
Tj=125°C
1)
at ID= 0.5A
W
W
Tj= 25°C
Tj=125°C
1)
at ID= 1.0A
W
W
Tj= 25°C
Tj=125°C
1)
at ID= 1.5A
W
W
Tj= 25°C
Tj=125°C
1)
at ID= 2.0A
W
W
Tj= 25°C
Tj=125°C
1)
at ID= 2.5A
W
W
Tj= 25°C
Tj=125°C
1)
at ID=1.0A
ICE3A3065I
ICE3A3065P
ICE3B3065I
ICE3B3065P
ICE3A3565I
ICE3A3565P
ICE3B3565I
ICE3B3565P
ICE3A5065I
ICE3A5065P
ICE3B5065I
ICE3B5065P
ICE3A5565I
ICE3A5565P
ICE3B5565I
ICE3B5565P
R
DSon8
R
DSon9
R
DSon10
R
DSon11
-
-
2.10
4.41
2.43
5.10
W
W
Tj= 25°C
Tj=125°C
1)
at ID= 1.5A
-
-
1.55
3.26
1.80
3.78
W
W
Tj= 25°C
Tj=125°C
1)
at ID= 1.8A
0.95
2.00
1.10
2.31
W
W
Tj= 25°C
Tj=125°C
1)
at ID= 2.5A
-
-
0.79
1.68
0.91
1.92
W
W
Tj= 25°C
Tj=125°C
1)
at ID= 2.8A
Version 2.32702 Apr 2013
CoolSET™-F3
Electrical Characteristics
ParameterSymbolLimit ValuesUnitTest Condition
min.typ.max.
Effective output
capacitance,
energy related
Effective output
capacitance,
energy related
ICE3A0365
ICE3B0365
ICE3A0565
ICE3A0565Z
ICE3B0565
ICE3A1065
ICE3B1065
ICE3A1565
ICE3B1565
ICE3A2065
ICE3A2065Z
ICE3B2065
ICE3A2565
ICE3B2565
ICE3A2065I
ICE3A2065P
ICE3B2065I
ICE3B2065P
ICE3A3065I
ICE3A3065P
ICE3B3065I
ICE3B3065P
C
C
C
C
C
C
C
C
o(er)1
o(er)2
o(er)3
o(er)4
o(er)5
o(er)6
o(er)7
o(er)8
-3.65-pFVDS= 0V to 480V
-4.75-pF
-7.0-pF
-11.63-pF
-21-pF
-26.0-pF
-7.0-pFVDS= 0V to 480V
-10.0-pF
ICE3A3565I
C
o(er)9
-14.0-pF
ICE3A3565P
ICE3B3565I
ICE3B3565P
ICE3A5065I
C
o(er)10
-20.5-pF
ICE3A5065P
ICE3B5065I
ICE3B5065P
ICE3A5565I
C
o(er)11
-23.0-pF
ICE3A5565P
ICE3B5565I
ICE3B5565P
Rise Timet
Fall Timet
1)
The parameter is not subjected to production test - verified by design/characterization
2)
Measured in a Typical Flyback Converter Application
rise
fall
-30
-30
2)
2)
-ns
-ns
Version 2.32802 Apr 2013
5Outline Dimension
PG-DIP-8
(Plastic Dual In-Line Package)
CoolSET™-F3
Outline Dimension
Figure 21PG-DIP-8 (Pb-free lead plating Plastic Dual In-Line Outline)
Version 2.32902 Apr 2013
PG-DIP-7-1
(Plastic Dual In-Line package)
CoolSET™-F3
Outline Dimension
Figure 22PG-DIP-7-1 (Pb-free lead plating Plastic Dual In-Line Outline)
Version 2.33002 Apr 2013
PG-TO220-6-46
(Isodrain I2Pak Package)
CoolSET™-F3
Outline Dimension
Figure 23PG-TO220-6-46 (Pb-free lead plating Isodrain I2Pak Package)
PG-TO220-6-47
(Isodrain Package)
Figure 24PG-TO220-6-47 (Pb-free lead plating Isodrain Package)
Dimensions in mm
Version 2.33102 Apr 2013
Total Quality Management
Qualität hat für uns eine umfassende
Bedeutung. Wir wollen allen Ihren
Ansprüchen in der bestmöglichen
Weise gerecht werden. Es geht uns also
nicht nur um die Produktqualität –
unsere Anstrengungen gelten
gleichermaßen der Lieferqualität und
Logistik, dem Service und Support
sowie allen sonstigen Beratungs- und
Betreuungsleistungen.
Dazu gehört eine bestimmte
Geisteshaltung unserer Mitarbeiter.
Total Quality im Denken und Handeln
gegenüber Kollegen, Lieferanten und
Ihnen, unserem Kunden. Unsere
Leitlinie ist jede Aufgabe mit „Null
Fehlern“ zu lösen – in offener
Sichtweise auch über den eigenen
Arbeitsplatz hinaus – und uns ständig
zu verbessern.
Unternehmensweit orientieren wir uns
dabei auch an „top“ (Time Optimized
Processes), um Ihnen durch größere
Schnelligkeit den entscheidenden
Wettbewerbsvorsprung zu verschaffen.
Geben Sie uns die Chance, hohe
Leistung durch umfassende Qualität zu
beweisen.
Quality takes on an allencompassing
significance at Semiconductor Group.
For us it means living up to each and
every one of your demands in the best
possible way. So we are not only
concerned with product quality. We
direct our efforts equally at quality of
supply and logistics, service and
support, as well as all the other ways in
which we advise and attend to you.
Part of this is the very special attitude of
our staff. Total Quality in thought and
deed, towards co-workers, suppliers
and you, our customer. Our guideline is
“do everything with zero defects”, in an
open manner that is demonstrated
beyond your immediate workplace, and
to constantly improve.
Throughout the corporation we also
think in terms of Time Optimized
Processes (top), greater speed on our
part to give you that decisive
competitive edge.
Give us the chance to prove the best of
performance through the best of quality
– you will be convinced.
Wir werden Sie überzeugen.
h t t p : / / w w w . i n f i n e o n . c o m
Published by Infineon Technologies AG
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