ICE3B0365 Infineon Technologies, ICE3B0365 Datasheet - Page 18

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ICE3B0365

Manufacturer Part Number
ICE3B0365
Description
IC OFFLINE CTRLR SMPS OTP 8DIP
Manufacturer
Infineon Technologies
Series
CoolSET®F3r
Datasheet

Specifications of ICE3B0365

Output Isolation
Isolated
Frequency Range
61 ~ 73kHz
Voltage - Input
8.5 ~ 22 V
Voltage - Output
650V
Power (watts)
22W
Operating Temperature
-40°C ~ 150°C
Package / Case
8-DIP (0.300", 7.62mm)
Number Of Outputs
1
Duty Cycle (max)
77 %
Output Voltage
650 V
Output Current
300 mA
Mounting Style
Through Hole
Switching Frequency
71 KHz
Maximum Operating Temperature
+ 150 C
Fall Time
30 ns
Minimum Operating Temperature
- 40 C
Rise Time
30 ns
Synchronous Pin
No
Topology
Flyback
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ICE3B0365X
ICE3B0365XK
SP000014968

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CoolSET™-F3
Functional Description
consumption of the IC as much as possible. In this mode, the
average current consumption is only 300µA as the only
working block is the Undervoltage Lockout(UVLO) which
controls the Startup Cell by switching on/off at V
/
VCCon
V
.
VCCoff
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
can rise from its earlier clamp
SoftS
voltage of 4.4V. If V
exceeds 5.4V which is observed by
SoftS
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 un-intentionally 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.
Version 2.0
18
24 Aug 2005

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