智能镇流器控制IC，适用于荧光灯镇流器 Smart Ballast Control IC for Fluorescent Lamp Ballasts
Description:
The 2nd Generation Smart Ballast Control IC integrates all functions required to operate FL lamps such as preheat-, ignition- and run-mode and protection features. Digital mixed-signal power control is employed enabling speedy, cost-effective and stable ballast designs with a minimum number of external components. Reliable and robust high voltage isolation is achieved using ’s proprietary Coreless Transformer Technology CLT. The ICB2FL02G is functionally similar to the ICB2FL01G with a number of optimizations to operating frequencies and detection thresholds for dimmable ballast designs.
Summary of Features:
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Integrated critical conduction mode PFC stage with enhanced dynamic PFC performance over wide load range
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Intelligent digital-/mixed-signal lamp inverter control
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Integrated high-voltage level-shift half-bridge driver
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Optimized for dimmable FL/CFL ballasts
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Drives up to 4 lamps with few external components required
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Built-in protection functions such as Over-Voltage Protection OVP and Over-Current Protection OCP
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Adjustable end-of-life detection in multi-lamp topologies and detection of capacitive mode operation
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Able to handle lamp chokes with high saturation behavior
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Special in-circuit test mode for faster test time
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Parameters set with resistors only
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Separate adjustable levels of lamp overload and rectifier effect detection EoL1, EoL2
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Intelligent discrimination between surge and half-bridge overcurrent events
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Self-adapting dead time adjustment of the half-bridge driver
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Highly accurate timing and frequency control over wide temperature range -25 to 125 °C
Benefits:
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Reduced BOM cost by optimized lamp choke size
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Halving the time for key tests such as end-of-life detection and preheat/operation modes
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Reduced system cost and improved ballast stability
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Suitable for dimming & multi-power ballasts
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Enables ballast compatibility with a wider range of lamp types
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Lamp can automatically restart following surge events and handle correctly EOL events
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Eases design of multi-power ballasts and reduces EMI
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Reliable, stable ballast designs