ICE2BS01. 2BS01 Datasheet
Datasheet, Version 3.0, February 2002
Off-Line SMPS Current Mode
Power Management & Supply
Never stop thinking.
Subjects (major changes since last revision)
ICE2BS01 is added
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Off-Line SMPS Current Mode Controller
• Enhanced Protection Functions all
with Auto Restart
www.DataSheet4U•.comLowest Standby Power Dissipation
• Very Accurate Current Limiting
• Only few external Components required
• Input Undervoltage Lockout
• 67kHz/100kHz fixed Switching Frequency
• Max Duty Cycle 72%
• Low Power Standby Mode to support
“Blue Angle” Norm
• Latched Thermal Shut Down
• Overload and Open Loop Protection
• Overvoltage Protection during Auto Restart
• Adjustable Peak Current Limitation via
• Overall Tolerance of Current Limiting < ±5%
• Internal Leading Edge Blanking
• Soft Start
• Soft Switching for Low EMI
This stand alone controller provides several special
enhancements to satisfy the needs for low power standby
and protection features. In standby mode frequency
reduction is used to lower the power consumption and
provide a stable output voltage in this mode. The frequency
reduction is limited to 20kHz / 21.5 kHz (typ.) to avoid
audible noise. In case of failure modes like open loop,
overvoltage or overload due to short circuit the device
switches in Auto Restart Mode which is controlled by the
internal protection unit. By means of the internal precise
peak current limitation the dimension of the transformer and
the secondary diode can be lower which leads to more cost
85 ... 270 VAC
Precise Low Tolerance
Peak Current Limitation
ICE2AS01 / ICE2BS01