ICE2QR0665_10 INFINEON [Infineon Technologies AG], ICE2QR0665_10 Datasheet - Page 5

• Manufacturer Part Number: ICE2QR0665_10
• Description: Off-Line SMPS Quasi-Resonant PWM Controller
• Manufacturer: INFINEON [Infineon Technologies AG]

1.1
1)
1.2
Figure 1
Note: Pin 4 and 5 are shorted
1
Version 2.3
Pin
1
2
3
4, 5
6
7
8
Drain
at T
ZC
CS
FB
j
=110°C
Pin Configuration with PG-DIP-8-6
Symbol
Pin Configuration and Functionality
Drain
GND
VCC
n.c.
ZC
CS
FB
Package PG-DIP-8-6
Pin Configuration PG-DIP-8-6 (top view)
2
3
4
1
Function
Zero Crossing
Feedback
Current Sense/
650V
650V
Not connected
Controller Supply Voltage
Controller Ground
1)
1)
Depl. CoolMOS
Depl. CoolMOS
8
7
6
5
®
®
Drain
Source
GND
VCC
n.c.
Drain
5
1.3
ZC (Zero Crossing)
At this pin, the voltage from the auxiliary winding after
a time delay circuit is applied. Internally, this pin is
connected to the zero-crossing detector for switch-on
determination. Additionally, the output overvoltage
detection is realized by comparing the voltage Vzc with
an internal preset threshold.
FB (Feedback)
Normally, an external capacitor is connected to this pin
for a smooth voltage V
connected to the PWM signal generator for switch-off
determination (together with the current sensing
signal), the digital signal processing for the frequency
reduction
operation, and the Active Burst Mode controller for
entering Active Burst Mode operation determination
and burst ratio control during Active Burst Mode
operation. Additionally, the open-loop / over-load
protection is implemented by monitoring the voltage at
this pin.
CS (Current Sense)
This pin is connected to the shunt resistor for the
primary current sensing, externally, and the PWM
signal generator for switch-off determination (together
with the feedback voltage), internally. Moreover, short-
winding protection is realised by monitoring the voltage
V
Drain (Drain of integrated Depl. CoolMOS
Drain pin is the connection to the drain of the internal
Depl. CoolMOS
VCC (Power supply)
VCC pin is the positive supply of the IC. The operating
range is between V
GND (Ground)
This is the common ground of the controller.
cs
during on-time of the main power switch.
Pin Configuration and Functionality
Pin Functionality
with
®.
decreasing
VCCoff
and V
FB
. Internally, this pin is
VCCOVP
load
CoolSET
ICE2QR0665
.
during
April 27, 2010
®
)
®
normal
- Q1