Da tas h ee t, Ve r si on 2 .2 , A u gu s t 3 0 , 2 01 1
®
N e v e r
s t o p
t h i n k i n g .
CoolSET
®
- Q1
ICE2QR1765
Revision History:
Previous Version:
Page
20
21
August 30, 2011
2.1
Subjects (major changes since last revision)
Revised outline dimension.
Add marking
Datasheet
For questions on technology, delivery and prices please contact the Infineon Technologies Offices in Germany or
the Infineon Technologies Companies and Representatives worldwide: see our webpage at http://
www.infineon.com
CoolMOS
®
, CoolSET
®
are trademarks of Infineon Technologies AG.
Edition 2011-08-30
Published by
Infineon Technologies AG
81726 München, Germany
©
Infineon Technologies AG 8/30/11.
All Rights Reserved.
Attention please!
The information given in this data sheet shall in no event be regarded as a guarantee of conditions or
characteristics (“Beschaffenheitsgarantie”). With respect to any examples or hints given herein, any typical values
stated herein and/or any information regarding the application of the device, Infineon Technologies hereby
disclaims any and all warranties and liabilities of any kind, including without limitation warranties of
non-infringement of intellectual property rights of any third party.
Information
For further information on technology, delivery terms and conditions and prices please contact your nearest
Infineon Technologies Office (www.infineon.com).
Warnings
Due to technical requirements components may contain dangerous substances. For information on the types in
question please contact your nearest Infineon Technologies Office.
Infineon Technologies Components may only be used in life-support devices or systems with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support
devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
be endangered.
CoolSET
®
- Q1
ICE2QR1765
Off-Line SMPS Quasi-Resonant PWM
Controller with integrated 650V CoolMOS
®
and startup cell in DIP-8
Product Highlights
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Quasi resonant operation
Active Burst Mode to reach the lowest standby power requirement
<100mW@no load
Digital frequency reduction for better overall system efficiency
Integrated 650V startup cell
PG-DIP-8
Features
650V avalanche rugged CoolMOS with built-in
startup cell
Quasiresonant operation till very low load
Active burst mode operation for low standby input
power (< 0.1W)
Digital frequency reduction with decreasing load for
reduced switching loss
Built-in digital soft-start
Foldback point correction and cycle-by-cycle peak
current limitation
Maximum on/off time limitation
Auto restart mode for VCC Overvoltage and
Undervoltage protections
Auto restart mode for overload protection
Auto restart mode for overtemperature protection
Latch-off mode for adjustable output overvoltage
protection and transformer short-winding protection
®
Description
The CoolSET
®
-Q1 series (ICE2QRxx65) is the first
generation of quasi-resonant integarted power ICs. It is
optimized for off-line switch mode power supply
applications such as LCD monitor, DVD R/W, DVD
Combo, Blue-ray DVD, set top box, etc. Operting the
MOSFET switch in quasi-resonant mode, lower EMI,
higher efficiency and lower voltage stress on secondary
diodes are expected for the SMPS. Based on the
BiCMOS technology, the CoolSET
®
-Q1 series has a
wide operation range (up to 25V) of IC power supply
and lower power consumption. It also offers many
advantages such as: a quasi-resonant operation till very
low load increasing the average system efficiency
compared to other conventional solutions; the Active
Burst Mode operation enables an ultra-low power
consumption at standby mode with small and
controllable output voltage ripple.
C
bus
85 ~ 265 VAC
C
ZC
R
ZC2
R
ZC1
Snubber
W
p
W
s
D
O
C
O
L
f
C
f
V
O
D
r1
~D
r4
R
VCC
C
VCC
D
VCC
W
a
ZC
VCC
Drain
Startup Cell
C
PS
R
b1
Power Management
PWM controller
Current Mode Control
Cycle-by-Cycle
current limitation
Zero Crossing Block
Active Burst Mode
Protections
CS
Depl. CoolMOS
®
Power Cell
R
CS
Optocoupler
R
b2
R
ovs1
GND
R
c1
FB
TL431
C
c1
C
c2
R
ovs2
Control Unit
CoolSET
®
-Q1
V
DS
650V
R
DSon1)
1.7
Type
ICE2QR1765
1)
2)
Package
PG-DIP-8
Marking
ICE2QR1765
230VAC ±15%
2)
56.4W
85-265 VAC
2)
32.6W
typ @ T=25°C
Calculated maximum input power rating at T
a
=50°C, T
i
=125°C and without copper area as heat sink.
Version 2.2
3
August 30, 2011
CoolSET
®
- Q1
ICE2QR1765
Table of Contents
1
1.1
1.2
1.3
2
3
3.1
3.2
3.3
3.3.1
3.3.1.1
3.3.1.2
3.3.1.3
3.3.2
3.4
3.4.1
3.5
3.5.1
3.5.2
3.5.3
3.6
4
4.1
4.2
4.3
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
4.3.7
4.3.8
4.3.9
4.3.10
5
6
7
8
Page
Pin Configuration and Functionality
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Pin Configuration with PG-DIP-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Package PG-DIP-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Pin Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Representative Blockdiagram
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Functional Description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
VCC Pre-Charging and Typical VCC Voltage During Start-up . . . . . . . . . . .7
Soft-start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Digital Frequency Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Up/down counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Zero crossing (ZC counter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Ringing suppression time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Switch Off Determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Current Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Foldback Point Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Active Burst Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Entering Active Burst Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . .10
During Active Burst Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Leaving Active Burst Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Electrical Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Internal Voltage Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
PWM Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Current Sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Soft Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Foldback Point Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Digital Zero Crossing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Active Burst Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
CoolMOS® Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Typical CoolMOS
®
Performance Characteristic
. . . . . . . . . . . . . . . . . . .17
Input power curve
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Outline Dimension
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Marking
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
4
August 30, 2011
Version 2.2
CoolSET
®
- Q1
ICE2QR1765
Pin Configuration and Functionality
1
1.1
Pin Configuration and Functionality
Pin Configuration with PG-DIP-8
1.3
Pin Functionality
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
FB
. Internally, this pin is
connected to the PWM signal generator for switch-off
determination (together with the current sensing
signal), the digital signal processing for the frequency
reduction with decreasing load during normal
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
cs
during on-time of the main power switch.
Drain
(Drain of integrated Depl. CoolMOS
®
)
Drain pin is the connection to the drain of the internal
CoolMOS
®.
VCC
(Power supply)
VCC pin is the positive supply of the IC. The operating
range is between V
VCCoff
and V
VCCOVP
.
GND
(Ground)
This is the common ground of the controller.
Pin
1
2
3
4, 5
6
7
8
1)
Symbol
ZC
FB
CS
Drain
n.c.
VCC
GND
Function
Zero Crossing
Feedback
Current Sense/
650V
1)
CoolMOS
®
Source
650V CoolMOS Drain
Not connected
Controller Supply Voltage
Controller Ground
1)
®
at T
j
=110°C
1.2
Package PG-DIP-8
ZC
1
8
GND
FB
2
7
VCC
CS
3
6
n.c.
Drain
4
5
Drain
Figure 1
Pin Configuration PG-DIP-8 (top view)
Note: Pin 4 and 5 are shorted
Version 2.2
5
August 30, 2011
