LX1691BIPW屬于集成電路（IC）的照明鎮(zhèn)流器控制器。由美高森美公司制造生產(chǎn)的LX1691BIPW照明，鎮(zhèn)流器控制器此產(chǎn)品族中的產(chǎn)品可用于實現(xiàn)控制和調(diào)節(jié)功能。對于日光燈、電致發(fā)光燈和 HID 燈等非 LED 照明工具的正常工作，這些功能很有必要或十分有用。既定器件所具備的特定功能集因預(yù)期用途各異，并且所供應(yīng)的產(chǎn)品可能包括相應(yīng)資源以直接控制驅(qū)動負載的電源，也可能不包括這些資源。

DESCRIPTION

The LX1691B is an enhanced Direct Drive CCFL (Cold Cathode Fluorescent Lamp) Controller. Its architecture is based on the LX1691. The LX1691B is optimized for wide input voltage applications. It is similar to the LX1691 except it has a guaranteed minimum lamp strike interval of one second1 to meet notebook and monitor panel manufacturer’s specifications. The “B” version also adds feed forward input voltage sensing to enhance transient response when used in inverters that derive lamp power from unregulated input supplies and batteries.

KEY FEATURES

? Wide Input Voltage Capable

? Simultaneous Amplitude And Duty Cycle Dimming Modes

? Resistor Programmable min and max Lamp Currents

? Digital Dimming Can Synch To External Or Internal Clocks

? 120 ms Power On Delay

? Open Or Shorted Lamp Regulation & Shutdown

? “On Chip” Full Wave Lamp Current Rectifier

? 16 Pin TSSOP Package

? Very Stable Oscillator with OnChip Timing Capacitor

? Enhanced Digital Dimming Resolution

BENEFITS

? Low Component Count / Module Cost / And Size

? High “Nits/Watt” Efficiency

? Can Operate Directly From a Single Li-Ion Cell

? Industries Safest And Highest Performing Strike Voltage Generation (Patented)

? Tight Operating Frequency Tolerance For Easier System Level RFI Control