DESCRIPTION

The M61880FP is a semiconductor laser-diode driver/controller. Its functions are the driving and laser power control of a specific type(Mitsubishis N-type laser)of semiconductor laser diode,in which the anode of a semiconductor laser diode is connected in stem structure to the cathode of a monitoring photodiode.

The IC has a laser drive current output pin of sink type and is capable of driving a laser diode on a maximum bias current of 40mA and a maximum switching current of 100 mA,which is switching at a rate of 200Mbps.

Since the M61880FP has a built in sample-hold circuit,it is possible to realize an internal APC* system that requires no external device for laser power control.

*:Automatic Power Control

FEATURES

● Built-in sample-hold circuit for internal APC function Hold error voltage is less than 1 for 1µs(C=0.047µF)

● High speed switching 200Mbps

● 5V single power supply

● Large driving current 100mA (max)

● Capable of setting bias current (40mA max)

APPLICATION

Semiconductor laser-diode applied equipment

• Laser beam printer(LBP)

• Plain Paper Copier(PPC)