ICE3BR0665J Infineon Technologies, ICE3BR0665J Datasheet - Page 10

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ICE3BR0665J

Manufacturer Part Number
ICE3BR0665J
Description
IC OFFLINE CTRLR SMPS OTP 8DIP
Manufacturer
Infineon Technologies
Series
CoolSET®F3Rr
Datasheet

Specifications of ICE3BR0665J

Output Isolation
Isolated
Frequency Range
56.5 ~ 73.5kHz
Voltage - Input
10.5 ~ 27 V
Voltage - Output
650V
Power (watts)
74W
Operating Temperature
-25°C ~ 130°C
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
SP000417880

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Figure 6
Figure 7
Version 2.0
Voltage Ramp
Oscillator
Gate Driver
FB
0.67V
Voltage Ramp
FB
Soft-Start Comparator
V
V
OSC
OSC
Improved Current Mode
Light Load Conditions
T
2
C
1
Duty Cycle
156ns time delay
circuit (156ns)
max.
time delay
10kΩ
PWM Comparator
R
1
0.67V
C8
V
PWM-Latch
1
Gate Driver
PWM OP
X3.3
t
t
t
10
3.3.1
The input of the PWM-OP is applied over the internal
leading edge blanking to the external sense resistor
R
current into a sense voltage. The sense voltage is
amplified with a gain of 3.2 by PWM OP. The output of
the PWM-OP is connected to the voltage source V
The voltage ramp with the superimposed amplified
current signal is fed into the positive inputs of the PWM-
Comparator C8 and the Soft-Start-Comparator (see
Figure 6).
3.3.2
The PWM-Comparator compares the sensed current
signal of the integrated CoolMOS
signal V
optocoupler or external transistor in combination with
the internal pull-up resistor R
information of the feedback circuitry. When the
amplified current signal of the integrated CoolMOS
exceeds the signal V
off the Gate Driver.
Figure 8
Sense
Optocoupler
connected to pin CS. R
FB
(see Figure 8). V
PWM-OP
PWM-Comparator
PWM Controlling
FB
R
FB
FB
Functional Description
the PWM-Comparator switches
5V
Soft-Start Comparator
0.67V
PWM OP
FB
PWM Comparator
FB
Sense
is created by an external
Improved
Current Mode
CoolSET
and provides the load
C8
ICE3BR0665J
X3.3
®
converts the source
with the feedback
PWM-Latch
10 Jun 2008
CS
®
-F3R
1
®
.

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