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MAX1579 - Complete Bias and White LED Power Supplies

Download the MAX1579 datasheet PDF. This datasheet also covers the MAX1578 variant, as both devices belong to the same complete bias and white led power supplies family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX1578/MAX1579 provide four regulated outputs to meet all the voltage requirements for small activematrix TFT-LCD displays in handheld devices where minimum external components and high efficiency are required.

Key Features

  • a temperature derating function to avoid overdriving the white LEDs during high ambient temperatures, enabling higher drive current below +42°C. The MAX1578/MAX1579 are available in space-saving 24-lead 4mm x 4mm thin QFN packages. Features.
  • Four Regulators in One Package.
  • Bias Power Using Charge Pumps +5V at 25mA for Source Driver +15V at 100µA for VON -10V at 100µA for VOFF No External Diodes Required Output Sequencing POS, NEG, and MAIN Are Autodischarged During Shutdown.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX1578_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX1572 PWM DC-to-DC Step-Down Converter
MAX1573 White LED 1x/1.5x Charge Pump
MAX1575 White LED 1x/1.5x Charge Pump
MAX1577Y 1.2A White LED Regulating Charge Pump
MAX1577Z 1.2A White LED Regulating Charge Pump

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
19-3359; Rev 0; 8/04 KIT ATION EVALU E L B AVAILA www.DataSheet4U.com Complete Bias and White LED Power Supplies for Small TFT Displays General Description The MAX1578/MAX1579 provide four regulated outputs to meet all the voltage requirements for small activematrix TFT-LCD displays in handheld devices where minimum external components and high efficiency are required. Each device consists of three advanced charge pumps for LCD bias power and a step-up converter for driving up to 8 series white LEDs for backlighting. The input voltage range is from 2.7V to 5.5V. The charge pumps provide fixed +5V, +15V, and -10V for the LCD bias circuits. No external diodes are needed. A high-efficiency, fractional (1.