ICE3A2565 Infineon Technologies, ICE3A2565 Datasheet - Page 15

• Manufacturer Part Number: ICE3A2565
• Description: IC OFFLINE CTRLR SMPS CM 8DIP
• Manufacturer: Infineon Technologies
• Series: CoolSET®F3r

Specifications of ICE3A2565

• Package / Case: 8-DIP (0.300", 7.62mm)
• Output Isolation: Isolated
• Frequency Range: 92 ~ 108kHz
• Voltage - Input: 8.5 ~ 22 V
• Voltage - Output: 650V
• Power (watts): 68W
• Operating Temperature: -25°C ~ 130°C
• Output Voltage: 650V
• No. Of Outputs: 1
• Supply Voltage Range: 8.5V To 21V
• Voltage Regulator Case Style: DIP
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +150°C
• Termination: RoHS Compliant
• Input Voltage: 265VAC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ICE3A2565X; ICE3A2565XK; SP000015075

But the Soft-Start Phase must be finished within the
Start Up Phase to force the voltage at pin FB below the
failure detection threshold of 4.8V.
3.8.2
Figure 22
Figure 22 shows the Auto Restart Mode for open loop
and no load condition. In case of this failure mode the
converter output voltage increases and also VCC. An
additional protection by the comparators C1, C2 and
the AND-gate G1 is implemented to consider this
failure mode (see Figure 23).The overvoltage detection
is provided by Comparator C1 only in the first time
during the Soft-Start Phase till the Soft-Start voltage
exceeds the threshold of the Comparator C2 at 4.0V
and the voltage at pin FB is above 4.8V. When VCC
exceeds 16.5V during the overvoltage detection phase
C1 can set the Error-Latch and the Burst Phase during
Auto Restart Mode is finished earlier. In that case
T
Datasheet V4.5
Burst2
1 6 .5 V
1 3 .5 V
D rive r
S o ftS
8 .5 V
V C C
5 .3 V
4 .0 V
4 .8 V
F B
is shorter than T
5 µ s B la n k in g
O pen loop & no load condition
Overvoltage due to Open Loop with
No Load
Auto Restart Mode
D e te ctio n
F a ilu re
D e te c tio n P h a s e
O v e rv o lta g e
Soft-Start
S o ft-S ta rt P h a s e
O v e rv o lta g e D e te ctio n
T
B u rs t2
. By means of C2 the
T
R es tart
t
t
t
t
15
normal operation mode is prevented from overvoltage
detection due to varying of VCC concerning the
regulation of the converter output. When the voltage
V
deactivated.
Figure 23 Overvoltage Detection
3.8.3
Thermal Shut Down is latched by the Error-Latch when
junction temperature T
exceeding an internal threshold of 140°C. In that case
the IC switches in Auto Restart Mode.
Note:
SoftS
S o ftS
C
S oft-S ta rt
is above 4.0V the overvoltage detection by C1 is
All the values which are mentioned in the
functional description are typical. Please refer
to Electrical Characteristics for min/max limit
values.
6 .5 V
Thermal Shut Down
T 1
R
V C C
S oft-S ta rt
1 6 .5 V
4 .0 V
Functional Description
j
P o w e r U p R e se t
C 1
C 2
of the pwm controller is
CoolSET™-F2
G 1
E rro r L a tc h
Jan 2004