| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an automobile LED driving device that can easily adjust an output current with high accuracy. <P>SOLUTION: The automobile LED driving device includes: a current setting unit 80 for setting multiple reference currents IL, IH independently from each other for multiple respective current setting resistors RL, RH which are connected externally; a current controller 40 for selecting one of the multiple reference currents IL, IH based on a stop signal STOP inputted from the outside; and an output transistor 10 to control the output current IOUT to a light-emitting diode line LED 1 connected externally based on the reference current IREF selected by the current controller 40. <P>COPYRIGHT: (C)2012,JPO&INPIT |
