ICE3A1065LJ Infineon Technologies, ICE3A1065LJ Datasheet - Page 8

• Manufacturer Part Number: ICE3A1065LJ
• Description: IC OFFLINE CTRLR SMPS OTP 8DIP
• Manufacturer: Infineon Technologies
• Series: CoolSET®F3r
• Type: Off Line Switcherr

Specifications of ICE3A1065LJ

• Package / Case: 8-DIP (0.300", 7.62mm)
• Output Isolation: Isolated
• Frequency Range: 87 ~ 113kHz
• Voltage - Input: 10.5 ~ 27 V
• Voltage - Output: 650V
• Power (watts): 32W
• Operating Temperature: -40°C ~ 150°C
• Input / Supply Voltage (max): 27 V
• Input / Supply Voltage (min): - 0.3 V
• Duty Cycle (max): 75 %
• Switching Frequency: 100 KHz
• Supply Current: 150 uA
• Operating Temperature Range: - 25 C to + 150 C
• Mounting Style: Through Hole
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: SP000205733

to charge the external capacitor C
connected to the VCC pin. This VCC charge current is
controlled to 0.9mA by the Startup Cell. When the V
exceeds the on-threshold V
are switched on. Then the Startup Cell is switched off
by the Undervoltage Lockout and therefore no power
losses present due to the connection of the Startup Cell
to the Drain voltage. To avoid uncontrolled ringing at
switch-on a hysteresis start up voltage is implemented.
The switch-off of the controller can only take place after
Active Mode was entered and V
The maximum current consumption before the
controller is activated is about 250µA.
When V
the bias circuit switched off and the soft start counter is
reset. Thus it is ensured that at every startup cycle the
soft start starts at zero.
The internal bias circuit is switched off if Latched Off
Mode or Auto Restart Mode is entered. The current
consumption is then reduced to 250µA.
Once the malfunction condition is removed, this block
will then turn back on. The recovery from Auto Restart
Mode does not require re-cycling the AC line. In case
Latched Off Mode is entered, VCC needs to be lowered
below 6.23V to reset the Latched Off Mode. This is
done usually by re-cycling the AC line.
When Active Burst Mode is entered, the internal Bias is
switched off most of the time but the Voltage Reference
is kept alive in order to reduce the current consumption
below 450µA.
3.3
Figure 4
Version 2.1
VCC
Startup Phase
falls below the off-threshold V
S o ftS
0 .6 V
Soft Start
S o ft S ta rt c o u n te r
C 7
P W M O P
S o ft S ta rt
S o ft S ta rt
C o m p a ra to r
CCon
S o ft-S ta rt
=18V, the bias circuit
VCC
x 3 .2
G 7
&
falls below 10.5V.
VCC
G a te D riv e r
CCoff
which is
=10.5V,
C S
VCC
8
In the Startup Phase, the IC provides a Soft Start
period to control the maximum primary current by
means of a duty cycle limitation. The Soft Start function
is a built-in function and it is controlled by an internal
counter.
When the V
IC starts the Soft Start mode. The function is realized
by an internal Soft Start resistor, a current sink and a
counter. And the amplitude of the current sink is
controlled by the counter.
Figure 5
Figure 6
V
V
V
Soft Start
Counter
SoftS2
SoftS1
SoftS
VCC
Soft Start Phase
Soft Start Circuit
32I
exceeds the on-threshold voltage, the
Functional Description
8I
4I
CoolSET™-F3
ICE3A1065LJ
SoftS
2I
29 Jul 2006
R
SoftS
5V
I