M66510P

MITSUBISHI MITSUBISHI 〈DIGITAL 〈DIGITAL ASSP ASSP 〉 〉 M66510P/FP M66510P/FP LASER-DIODE DRIVER LASER-DIODE DRIVER DESCRIPTION The M66510 is a semiconductor laser diode driver that drives a semiconductor laser of the type whose cathode and the anode of monitor photodiode are connected to the stem. Laser driving current of up to 120mA can be set by applying constant voltage from outside to drive the laser diode. It operates from a 5V single power supply, allowing switching of laser driving current at a speed of 20M bits/sec. *: Our semiconductor laser is of R type. FEATURES Built-in two outputs for monitoring laser power (comparator output and analog output) With laser driving current forced off pin High-speed switching (20M bits/s) High driving current (120mA max.) 5V single power supply APPLICATION Laser beam printer PIN CONFIGURATION (TOP VIEW) VCC1 CURRENT SETTING INPUT 1 CURRENT SETTING LOAD OUTPUT 1 CURRENT SETTING INPUT 2 CURRENT SETTING LOAD OUTPUT 2 LASER CURRENT FORCED OFF INPUT CURRENT SETTING LOAD OUTPUT 3 MONITOR LOAD INPUT 1 MONITOR LOAD INPUT 2 1 20 → 1RO 19 → 2RO 18 → LD VL1 → 2 1RC ← 3 VL2 → 4 2RC ← 5 VOFF → 6 3RC ← 7 GND1 8 LASER CURRENT LOAD OUTPUT 1 LASER CURRENT LOAD OUTPUT 2 LASER DIODE OUTPUT MONITOR DIODE INPUT DATA INPUT MONITOR COMPARATOR OUTPUT MONITOR ANALOG OUTPUT DUTY CONTROL INPUT M66510P/FP 17 GND2 16 ← PD 15 ← DATA 14 VCC2 13 → CO 12 → MO 11 ← CD 1RM → 9 2RM → 10 Outline 20P4K BLOCK DIAGRAM MONITOR OUTPUT MO 12 COMPARAT...