Datasheet4U Logo Datasheet4U.com

MAX8709B - High-Efficiency CCFL Backlight Controller

General Description

The MAX8709B integrated backlight controller is optimized to drive cold-cathode fluorescent lamps (CCFLs) using a resonant full-bridge inverter architecture.

Key Features

  • that effectively protect against many single-pointfault conditions including lamp-out and short-circuit faults. The MAX8709B achieves 10:1 dimming range by “chop- ping” the lamp current on and off using a digital pulse- width-modulation (DPWM) method. The minimum DPWM duty cycle of the MAX8709B is 12.5%. The brightness is controlled with a 2-wire SMBus-compatible interface. The device directly drives the four external N-channel power MOSF.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
MAX870 Switched-Capacitor Voltage Inverters Maxim
MAX871 Switched-Capacitor Voltage Inverters Maxim
MAX872 Precision Voltage References Maxim
MAX8720 Dynamically Adjustable 6-Bit VID Step-Down Controller Maxim
MAX8723 Step-Down Regulator Maxim Integrated

Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX8702 Dual-Phase MOSFET Drivers
MAX8703 Dual-Phase MOSFET Drivers
MAX8707 Fixed-Frequency Controller
MAX8710 Low-Cost Linear-Regulator LCD Panel Power Supplies
MAX8711 Low-Cost Linear-Regulator LCD Panel Power Supplies

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
MAX8709B High-Efficiency CCFL Backlight Controller with SMBus Interface General Description The MAX8709B integrated backlight controller is optimized to drive cold-cathode fluorescent lamps (CCFLs) using a resonant full-bridge inverter architecture. The resonant operation maximizes striking capability and provides near-sinusoidal waveforms over the entire input range to improve CCFL lifetime. The controller operates over a wide input voltage range of 4.6V to 28V with high power-to-light efficiency. The device also includes safetyfeatures that effectively protect against many single-pointfault conditions including lamp-out and short-circuit faults.