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RGB LED drivers manage 7 LEDs in series

Posted: 13 Nov 2008 ?? ?Print Version ?Bookmark and Share

Keywords:LED driver? RGB series? backlight?


Tokyo Electron Device Limited has launched TE7118PF, an RGB LED control drivers ideal for LED control applications such as LCD backlights, indoor LED lighting, and LED illumination lights. The TE7118PF can handle high voltages (28V max) and has a constant-current output in the range 5mA to 30mA that can be configured via an external resistor.

The TE7118PF is a special-purpose LED control drivers with 3-channel built-in constant-current control circuits. Because the constant-current output of each circuit can be varied in the range 5mA to 30mA by an external resistor, the brightness of each channel can be adjusted independently. The high withstand voltage of the ports (28V) allows for the seven standard LEDs to be connected in series of each channel and adjusted independently.

Tokyo Electron Device is marketing the new control drivers primarily at applications in industrial equipment, amusement machines, and other devices that require an LED display.

TE7118PF RGB LED control drivers specifications

  1. 3-channel built-in constant-current control circuits (As each channel can drive 7 LEDs connected in series, one chip can support a maximum of 3 channels x 7 LEDs = 21 LEDs)

  2. High withstand voltage: 28V

  3. Constant-current output range: Variable in the range 5mA to 30mA

  4. Supports daisy-chain connections

  5. Maximum frequency: 20MHz

  6. Package TSSOP-20

Engineering sample is now available and mass production is scheduled in December. The standard sale price is 200 yen for 10,000 units (exclusive of tax).

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