Highly Integrated, Compact Footprint
• Incorporates flyback controller, 650 V MOSFET, secondary-side
sensing and synchronous rectification driver
• Integrated FluxLink™, HIPOT-isolated, feedback link
• Exceptional CV/CC accuracy, independent of transformer design or
external components
• Instantaneous transient response ±5% CV with 0%-100%-0%
load step
EcoSmart™ – Energy Efficient
• <10 mW no-load at 230 VAC when supplied by transformer bias
winding
• Easily meets all global energy efficiency regulations
• Low heat dissipation
Advanced Protection / Safety Features
• Primary sensed output OVP
• Secondary sensed output overshoot clamp
• Secondary sensed output OCP to zero output voltage
• Hysteretic thermal shutdown
Full Safety and Regulatory Compliance
• 100% production HIPOT compliance testing equivalent to
6 kV DC/1 sec
• Reinforced insulation
• Isolation voltage >3,500 VAC
• UL1577 and TUV (EN60950 and EN62368) safety approved
• EN61000-4-8 (100 A/m) and EN61000-4-9 (1000 A/m) compliant
Green Package
• Halogen free and RoHS compliant
Applications
• Chargers and adapters for smart mobile devices
• High efficiency, low voltage, high current power supplies
Description
The InnoSwitch™-CH family of ICs dramatically simplifies the development
and manufacturing of low-voltage, high current power supplies,
particularly those in compact enclosures or with high efficiency requirements.
The InnoSwitch-CH architecture is revolutionary in that the
devices incorporate both primary and secondary controllers, with sense
elements and a safety-rated feedback mechanism into a single IC.
Close component proximity and innovative use of the integrated
communication link permit accurate control of a secondary-side
synchronous rectification MOSFET and optimization of primary-side
switching to maintain high efficiency across the entire load range.
Additionally, the minimal DC bias requirements of the link enables the
system to achieve less than 10 mW no-load in challenging applications
such as smart-mobile device chargers.