ICE3BR0665JF Infineon Technologies, ICE3BR0665JF Datasheet - Page 17

• Manufacturer Part Number: ICE3BR0665JF
• Description: IC OFFLINE CTLR SMPS OTP TO220-6
• Manufacturer: Infineon Technologies
• Series: CoolSET®F3Rr
• Type: Off Line Switcherr

Specifications of ICE3BR0665JF

• Output Isolation: Isolated
• Frequency Range: 58 ~ 75kHz
• Voltage - Input: 10.5 ~ 27 V
• Voltage - Output: 650V
• Power (watts): 42W
• Operating Temperature: -25°C ~ 130°C
• Package / Case: TO-220-6 Formed Leads
• Output Voltage: 650 V
• Input / Supply Voltage (max): 27 V
• Input / Supply Voltage (min): - 0.3 V
• Duty Cycle (max): 75 %
• Switching Frequency: 67 KHz
• Operating Temperature Range: - 25 C to + 130 C
• Mounting Style: Through Hole
• Maximum Operating Temperature: + 130 C
• Minimum Operating Temperature: - 25 C
• Output Power: 259 W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SP000366360

3.7.3
The IC provides Auto Restart Mode as the protection
feature. Auto Restart mode can prevent the SMPS from
destructive states. The following table shows the
relationship between possible system failures and the
chosen protection modes.
VCC Overvoltage
Overtemperature
Overload
Open Loop
VCC Undervoltage
Short Optocoupler
External auto restart
enable
Before entering the Auto Restart protection mode,
some of the protections can have extended blanking
time to delay the protection and some needs to fast
react and will go straight to the protection. Overload
and open loop protection are the one can have
extended blanking time while Vcc Overvoltage, Over
temperature, Vcc Undervoltage, short opto-coupler
and external auto restart enable will go to protection
right away.
After the system enters the Auto-restart mode, the IC
will be off. Since there is no more switching, the Vcc
voltage will drop. When it hits the Vcc turn off threshold,
the start up cell will turn on and the Vcc is charged by
the startup cell current to Vcc turn on threshold. The IC
is on and the startup cell will turn off. At this stage, it will
enter the startup phase (soft start) with switching
cycles. After the Start Up Phase, the fault condition is
checked. If the fault condition persists, the IC will go to
auto restart mode again. If, otherwise, the fault is
removed, normal operation is resumed.
Version 2.0
Protection Modes
Auto Restart Mode
Auto Restart Mode
Auto Restart Mode
Auto Restart Mode
Auto Restart Mode
Auto Restart Mode
Auto Restart Mode
17
3.7.3.1
Figure 25
In case of Overload or Open Loop, the FB exceeds
4.5V which will be observed by comparator C4. Then
the internal blanking counter starts to count. When it
reaches 20ms, the switch S1 is released. Then the
clamped voltage 0.9V at V
is no external capacitor C
reach 4.0V immediately. When both the input signals at
AND gate G5 is positive, the Auto Restart Mode will be
activated after the extra spike blanking time of 30us is
elapsed. However, when an extra blanking time is
needed, it can be achieved by adding an external
capacitor, C
to charge the capacitor C
switch S1 is released. The charging time from 0.9V to
4.0V are the extendable blanking time. If C
and I
around 50ms and the total blanking time is 70ms. In
combining the FB and blanking time, there is a blanking
window generated which prevents the system to enter
Auto Restart Mode due to large load jumps.
#
C
BK
BK
BA
FB
4.0V
4.5V
is 13.5uA, the extendable blanking time is
S1
Auto Restart mode with extended
BK
Auto Restart Mode
. A constant current source of I
0.9V
blanking time
C3
C4
I
BK
G2
1
Functional Description
Blanking
BK
20ms
Time
BA
5.0V
BK
from 0.9V to 4.0V after the
can increase. When there
connected, the V
ICE3BR0665JF
CoolSET
G5
&
Blanking
Spike
30us
Control Unit
11 Sep 2008
BK
BK
Restart
Mode
is 0.22uF
Auto
®
will start
-F3R
BA
will