ICE2QR0665G Datasheet, PDF (3/21 Pages) Infineon Technologies AG – Off-Line SMPS Quasi-Resonant PWM Controller with integrated 650V CoolMOS® and startup cell in DSO-16/12

CoolSET^® - Q1
ICE2QR0665G
Off-Line SMPS Quasi-Resonant PWM
Controller with integrated 650V CoolMOS^® and
startup cell in DSO-16/12
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 avalanche rugged CoolMOS^® with startup cell
• PB-free lead plating; RoHS compliant
PG-DSO-16/12
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 integrated 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. Operating 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 quasi-resonant operation till very low load
which increases the average system efficiency, Active Burst
Mode operation which enables an ultra-low power
consumption at standby mode with small and controllable
output voltage ripple, etc.
85 ~ 265 VAC
Dr1~Dr4
GND
Cbus
CZC RZC2 RZC1
ZC
VCC
Power Management
PWM controller
Current Mode Control
Cycle-by-Cycle
current limitation
Zero Crossing Block
Active Burst Mode
Protections
Control Unit
Snubber
Drain ^RVCC
CVCC
DVCC
Startup Cell
CoolMOS^®
Wp
DO
Ws
CO
Wa
CPS
Rb1
CS
RCS
Optocoupler
FB
TL431
CoolSET^®-Q1
Lf
Cf VO
Rb2
Rovs1
Rc1
Cc1 Cc2
Rovs2
Type
ICE2QR0665G
Package
PG-DSO-16/12
Marking
2QR0665G
V_DS
650V
R_DSon1)
0.65
1) _{typ @ T=25°C}
2) _{Calculated maximum input power rating at Ta=50°C, Ti=125°C and without copper area as heat sink.}
Version 2.0
3
230VAC ±15%²⁾
79W
85-265 VAC²⁾
45W
July 4, 2011