SP7680_07 Datasheet, PDF (1/6 Pages) Sipex Corporation – Evaluation Board Manual

Solved by
TM
Evaluation Board Manual
SP7680
Complete Backlight Solution
Separate control for 4 main, 2 sub, and
keypad LEDs
Built-in 6-bit DAC for precise current setting
I²C serial interface
Data is stored in shutdown
1x and 1.5x mode operation with automatic
switchover
Very low dropout current sources: 200mV typ
2MHz switching frequency reduces external
components
Small 16-pin 3x3 QFN
___________________________________________________________________ DESCRIPTION
The SP7680EB Evaluation Board is a compact circuit including the SP7680 in 3x3mm QFN and 4
small 0402 or 0603 capacitors. This circuit can provide a stable drive current for backlight white
LEDs and with I²C serial interface independently control LEDs for main and auxiliary displays as well
as the keypad. The evaluation board is a completely assembled and tested surface mount board
which provides easy probe access points to all SP7680 inputs and outputs so that the user can
quickly connect LEDs and measure electrical characteristics and waveforms.
_____________________________________________________________ BOARD SCHEMATIC
Jun20-07
SP7680 Evaluation Board Manual
Page 1 of 6
© 2007 Sipex Corporation