ICE3BS03LJG Datasheet, PDF (3/25 Pages) Infineon Technologies AG – Off-Line SMPS Current Mode Controller with integrated 500V Startup Cell

F3 PWM controller
ICE3BS03LJG
Off-Line SMPS Current Mode Controller with
integrated 500V Startup Cell ( Latched and
frequency jitter Mode )
Product Highlights
• Active Burst Mode to reach the lowest Standby Power
Requirements < 100mW
• Built-in latched Off protection Mode and external latch enable
function to increase robustness of the system
• Built-in and extendable blanking Window for high load jumps to
increase system reliability
• Frequency jitter for low EMI
• Pb-free lead plating; RoHS compilant
P^P-^GD^-S^DO^SO-8^--⁸3, -6
Features
• 500V Startup Cell switched off after Start Up
• Active Burst Mode for lowest Standby Power
• Fast load jump response in Active Burst Mode
• 65kHz internally fixed switching frequency
• Built-in Latched Off Protection Mode for
Overtemperature, Overvoltage & Short Winding
• Auto Restart Protection Mode for Overload, Open
Loop & VCC Undervoltage
• Built-in Soft Start
• Built-in blanking window with extendable blanking
time for short duration high current
• External latch off enable function
• Max Duty Cycle 75%
• Overall tolerance of Current Limiting < ±5%
• Internal PWM Leading Edge Blanking
• BiCMOS technology provide wide VCC range
• Frequency jitter and soft gate driving for low EMI
Description
The ICE3BS03LJG is the latest version of the F3 controller
for lowest standby power and low EMI features with both
auto-restart and latch off protection features to enhance
the system robustness. It targets for off-Line battery
adapters, and low cost SMPS for low to medium power
range such as application for the DVD R/W, DVD Combi,
Blue Ray DVD player and recorder, set top box, charger,
note book adapter, etc. The inherited outstanding features
includes 500V startup cell, active burst mode (achieve the
lowest standby power; i.e. <100mV at no load with
Vin=270Vac) and propagation delay compensation
(accurate output power limit for wide range input),
modulated gate drive (low EMI), etc. The newly added
technology and features can further enhance the features.
It includes BiCMOS technology (further lower power
consumption and extend Vcc operating range to 26V),
frequency jittering feature (low EMI), built-in soft start,
built-in blanking window with extendable blanking time for
high load jump, external latch off enable pin (feasible for
extra protection), etc. Therefore, ICE3BS03LJG is a
versatile PWM controller for low to medium power
application.
85 -- 270 VAC
CBulk
Typical Application
Snubber
CVCC
+
Converter
DC Output
-
HV
VCC
Startup Cell
PWM Controller
Current Mode
Power
Management
Precise Low
Tolerance Peak
Current Limitation
Control Unit
Active Burst Mode
Latch off Mode
BL
Auto Restart Mode
ICE3BS03LJ ( Latch & Jitter )
Gate
CS
FB
GND
RSense
Type
ICE3BS03LJG
Marking
3BS3LJ
Package
PG-DSO-8
F_OSC
65kHz
Version 2.0
3
6 Dec 2007