ICE2QR4765_12 Datasheet, PDF (3/22 Pages) Infineon Technologies AG – Off-Line SMPS Quasi-Resonant PWM Controller with integrated 650V Startup Cell/Depletion CoolMOS In DIP-8

CoolSET^® -Q1
ICE2QR4765
Off-Line SMPS Quasi-Resonant PWM
Controller with integrated 650V CoolMOS^®
and startup cell in DIP-8
Product Highlights
• Active Burst Mode to reach the lowest standby power requirement
<100mW@no load
• Quasi resonant operation
• 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 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.
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
Wp
DO
Ws
CO
RVCC D_VCC
Wa
CVCC
Drain
Startup Cell
CPS
Rb1
CS
Depl. CoolMOS^®
Power Cell
RCS
Optocoupler
FB
TL431
CoolSET^®-Q1
Lf
Cf VO
Rb2
Rovs1
Rc1
Cc1 Cc2
Rovs2
Type
Package
Marking
V_DS
R_DSon1)
ICE2QR4765
PG-DIP-8
ICE2QR4765
650V
4.7
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.}
230VAC ±15%²⁾
30W
85-265 VAC²⁾
19W
Version 2.3
3
November 14, 2012