Evaluation Kit for the MAX17075 (MAX17075EVKIT) (MAX17075EVKIT)

The MAX17075 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that provides the voltages and features required for active-matrix thin-film transistor (TFT), liquid-crystal display (LCD) panels in LCD monitors and LCD TVs. The EV kit contains a step-up switching regulator, a two-stage positive charge pump for the TFT gate-on supply, a single-stage negative charge pump for the TFT gate-off supply, and a high-current op amp. Also included is a logic-controlled high-voltage switch array, with capacitor control delay, for the positive gate-driver supply. A capacitive dummy load is provided at the high-voltage switch output for ease of testing without an attached panel.

The MAX17075 EV kit is designed to operate from a DC supply voltage of +2.5V to +5.5V. At +5V (±10%) nominal input voltage, the step-up switching regulator provides a +13V output and up to 500mA. The positive charge pump provides a +30V output and up to 30mA. The negative charge pump provides a -7V output and up to 60mA. The high-current op amp provides a +6.5V output that can source or sink 500mA peak current. The high-voltage switch array is controlled by external logic.

The MAX17075 switches at 1.2MHz, allowing the use of tiny surface-mount components. The MAX17075 thin QFN package (0.8mm maximum height) with low-profile external components allows this circuit to be less than 3mm high.

Возможности

  • +2.5V to +5.5V Input-Voltage Range
  • Output Voltages (+4.5V to +5.5V Input Voltage)
    • +13V Output at 500mA (Step-Up Switching Regulator)
    • +30V Output at 30mA (Positive Charge Pump)
    • -7V Output at 60mA (Negative Charge Pump)
    • High-Current Op Amp (±500mA Peak Current)
  • 1.2MHz Switching Frequency
  • All Output Voltages are Resistor Adjustable
  • Logic-Controlled High-Voltage Switches with Capacitor Control Delay
  • Low-Profile Surface-Mount Components
  • Lead(Pb)-Free and RoHS Compliant
  • Fully Assembled and Tested

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Производитель: Maxim Integrated
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The MAX17075 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that provides the voltages a…
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