Top

Evaluation Kit for the MAX749

Product Details

Key Features

Simplified Block Diagram

Technical Docs

Data Sheet Evaluation Kit for the MAX749 Feb 01, 1995

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Key Features

  • 2.7V to 6V Input Voltage
  • -8.0V to -23.6V Adjustable Output Voltage
  • 40mA Output Current with +5V Input
  • 15mA Output Current with +3V Input
  • Easy Interface to µP
  • Pushbutton Control of Output Voltage

Applications/Uses

  • Communication Systems
  • Laptop Computers
  • Notebook Computers
  • Palmtop Computers
  • PDAs and Other Handheld Devices
  • Portable Data-Collection Terminals

Description

The MAX749 LCD bias supply produces a variable negative output voltage when powered by a +3V to +5V supply. The MAX749 evaluation kit (EV kit) has a -8.0V to -23.6V adjustable output voltage. This is the typical range for driving the backplane of a liquid crystal display (LCD).

Two pushbutton switches, located on the EV kit's printed circuit board, control the output voltage. One switch connects to the CTRL pin and the other to the ADJ pin. Logic signals from an external controller may be connected to the board for optional output voltage control.

Simplified Block Diagram

Technical Docs

Data Sheet Evaluation Kit for the MAX749 Feb 01, 1995

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.