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MAX8759 Datasheet Ccfl Backlight Controller

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-3874; Rev 1; 2/06 Low-Cost, SMBus, CCFL Backlight Controller General.

General Description

The MAX8759 integrated cold-cathode fluorescent lamp (CCFL) inverter controller is designed to drive CCFLs using a full-bridge resonant inverter.

The resonant operation ensures reliable striking and provides near-sinusoidal waveforms over the entire input range.

The controller operates over a wide input-voltage range of 4.5V to 28V with high power to light efficiency.

Key Features

  • that effectively protect against single-point fault conditions such as lamp-out, secondary overvoltage, and secondary short-circuit faults. The MAX8759 provides accurate lamp-current regulation (±2.5%) for superior CCFL inverter performance. The lamp current is adjustable with an external resistor; 10:1 dimming range can be achieved by turning the CCFL on and off using a digital pulse-width modulation (DPWM) method, while maintaining the lamp-current constant. The MAX8759 provides three mechanis.

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MAX8759 Distributor