ICE3B0565J Infineon Technologies, ICE3B0565J Datasheet - Page 11

• Manufacturer Part Number: ICE3B0565J
• Description: IC OFFLINE CTRLR SMPS OTP 8DIP
• Manufacturer: Infineon Technologies
• Series: CoolSET®F3r

Specifications of ICE3B0565J

• Output Isolation: Isolated
• Frequency Range: 58 ~ 76kHz
• Voltage - Input: 10.3 ~ 27 V
• Voltage - Output: 650V
• Power (watts): 25W
• Operating Temperature: -25°C ~ 130°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• Number Of Outputs: 1
• Duty Cycle (max): 80 %
• Output Voltage: 650 V
• Output Current: 500 mA
• Mounting Style: Through Hole
• Switching Frequency: 74.5 KHz
• Maximum Operating Temperature: + 150 C
• Fall Time: 30 ns
• Minimum Operating Temperature: - 25 C
• Rise Time: 30 ns
• Synchronous Pin: No
• Topology: Flyback
• For Use With: EVALSF3-ICE3B0565IN - BOARD DEMO ICE3B0565 15W SMPS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ICE3B0565JX; ICE3B0565JXK; SP000064685

Current Limiting is now possible in a very accurate way.
E.g. I
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
propagation delay compensation the overshoot is only
about 2% (see Figure 11).
Figure 11
The Propagation Delay Compensation is realized by
means of a dynamic threshold voltage V
12). In case of a steeper slope the switch off of the
driver is earlier to compensate the delay.
Figure 12
Version 2.4
V
V
OSC
csth
1,25
1,15
1,05
0,95
1,3
1,2
1,1
0,9
V
peak
V
1
Sense
0
= 0.5A with R
max. Duty Cycle
0,2
Overcurrent Shutdown
Dynamic Voltage Threshold V
Signal1
0,4
peak
0,6
with compensation
overshoot of 14.4%. By means of
0,8
Sense
csth
dV
1
off time
=1V. A current ramp of
= 2. Without Propagation
dt
Propagation Delay
Sense
Sense
1,2
without compensation
Propagation Delay
1,4
Signal2
/dt = 0.8V/µs, and a
1,6
csth
1,8
(see Figure
csth
2
=180ns
t
t
µ
V
s
11
3.6
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.
3.6.1
Figure 13
V
settled and S2 is on while S3 is off, this is due to the
frequency jittering function that is making use of the
Soft Start pin. If overload occurs V
Auto Restart Mode can’t be entered as the gate G5 is
still blocked by the comparator C3. But after V
SoftS
FB
SoftS
4.0V
4.5V
1.35V
swings between 3.2V and 3.6V after the SMPS is
S1
Control Unit
Adjustable Blanking Window
3.0V
C3
C4
Adjustable Blanking Window
C5
S3
S2
G5
&
R
CoolSET™-F3
Frequency
SoftS
FB
Jitter
is exceeding 4.5V.
ICE3Bxx65J
G6
Control Unit
14 Nov 2006
&
Restart
Active
Mode
Mode
Burst
Auto
5V
FB
has