ICE2A765P Infineon Technologies, ICE2A765P Datasheet - Page 12

IC OFFLINE CTRLR SMPS CM TO220

ICE2A765P

Manufacturer Part Number
ICE2A765P
Description
IC OFFLINE CTRLR SMPS CM TO220
Manufacturer
Infineon Technologies
Series
CoolSET®F2r
Datasheet

Specifications of ICE2A765P

Package / Case
TO-220-6 Formed Leads
Output Isolation
Isolated
Frequency Range
93 ~ 107kHz
Voltage - Input
8.5 ~ 22 V
Voltage - Output
650V
Power (watts)
240W
Operating Temperature
-40°C ~ 150°C
Duty Cycle (max)
77 %
Output Voltage
650 V (Max)
Output Current
7000 mA (Max)
Mounting Style
Through Hole
Switching Frequency
107 KHz
Maximum Operating Temperature
+ 150 C
Fall Time
30 ns
Minimum Operating Temperature
- 40 C
Rise Time
30 ns
Synchronous Pin
No
Topology
Flyback
Number Of Outputs
1
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
ICE2A765PIN
ICE2A765PX
ICE2A765PXK
ICE2A765PXTIN
ICE2A765PXTIN
SP000013794

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Figure 11
3.3
Figure 12
The Soft-Start is realized by the internal pull-up resistor
R
Figure 5). The Soft-Start voltage V
charging the external capacitor C
Version 2.6
Soft-Start
Optocoupler
5.6V
5.3V
V
Gate Driver
and the external Capacitor C
SoftS
Soft-Start
PWM Controlling
Soft-Start Phase
FB
R
FB
T
Soft-Start
6.5V
Soft-Start Comparator
PWM OP
PWM Comparator
0.8V
Improved
Current Mode
Soft-Start
x3.65
SoftS
PWM-Latch
is generated by
by the internal
Isense
Soft-Start
(see
t
t
12
pull-up resistor R
compares the voltage at pin SoftS at the negative input
with the ramp signal of the PWM-OP at the positive
input. When Soft-Start voltage V
Feedback voltage V
the pulse width by resetting the PWM-Latch (see
Figure 12). In addition to Start-Up, Soft-Start is also
activated at each restart attempt during Auto Restart.
By means of the above mentioned C
Start can be defined by the user. The Soft-Start is
finished when V
Protection Unit is activated by Comparator C4 and
senses the FB by Comparator C3 wether the voltage is
below 4.8V which means that the voltage on the
secondary side of the SMPS is settled. The internal
Zener Diode at SoftS has a clamp voltage of 5.6V to
prevent the internal circuit from saturation (see Figure
13).
Figure 13
The Start-Up time T
voltage V
Start Phase T
By means of Soft-Start there is an effective
minimization of current and voltage stresses on the
integrated CoolMOS™, the clamp circuit and the output
overshoot and prevents saturation of the transformer
during Start-Up.
C
SoftS
Soft Start
5.6V
FB
6.5V
R
5.3V
4.8V
FB
OUT
Activation of Protection Unit
=
6.5V
is settled must be shorter than the Soft-
Soft-Start
------------------------------------ -
R
SoftS
R
Soft Start
C4
C3
Soft-Start
T
Soft-Start
FB
Soft Start
Start-Up
(see Figure 14).
exceeds 5.3V. At that time the
the Soft-Start-Comparator limits
Functional Description
. The Soft-Start-Comparator
Clock
Power-Up Reset
×
within the converter output
1.69
G2
CoolSET™-F2
PWM-Latch
Error-Latch
SoftS
Soft-Start
R
S
R
S
25 Dec 2006
is less than
Q
Q
Q
Q
the Soft-
Gate
Driver

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