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M66510FP Datasheet(PDF) 1 Page - Mitsubishi Electric Semiconductor |
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M66510FP Datasheet(HTML) 1 Page - Mitsubishi Electric Semiconductor |
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1 / 10 page  1 MITSUBISHI 〈DIGITAL ASSP〉 M66510P/FP LASER-DIODE DRIVER MITSUBISHI 〈DIGITAL ASSP〉 M66510P/FP 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) BLOCK DIAGRAM 2 12 VL1 LINEAR AMPLIFIER MONITOR OUTPUT MO 9 1RM 10 2RM 16 PD MONITOR DIODE INPUT 18 LD LASER DIODE OUTPUT IL = IL1 + IL2 + IL3 VL1, 1RC: LASER CURRENT (IL1) SETTING PIN VL2, 2RC: LASER CURRENT (IL2) SETTING PIN 3RC: LASER CURRENT (IL3) SETTING PIN VCC1, GND1: IC INTERNAL ANALOG POWER SUPPLY PIN VCC2, GND2: IC INTERNAL DIGITAL POWER SUPPLY PIN 11 CD DUTY CONTROL INPUT 15 DATA DATA INPUT 6 VOFF LASER CURRENT FORCED OFF 13 COMPARATOR OUTPUT CO 20 1RO 19 2RO COMPARATOR (Vref = 1.2V) CONSTANT CURRENT SOURCE (IL1) Max. 60mA CONSTANT CURRENT SOURCE (IL2) Max. 30mA CONSTANT CURRENT SOURCE (IL3) Max. 30mA DIFFERENTIAL AMPLIFIER CURRENT SWITCHING CIRCUIT 3 1RC 4 VL2 5 2RC 7 3RC 1 VCC1 14 VCC2 17 GND2 8 GND1 CURRENT SETTING INPUT 1 CURRENT SETTING INPUT 2 15 16 17 18 19 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 11 12 13 14 20 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 10 9 8 7 6 5 4 3 2 1RC ← 2RM → 2RC ← VL2 → VL1 → 3RC ← VOFF → 1RM → VCC1 GND1 ← PD ← CD ← DATA → 2RO GND2 VCC2 → 1RO → LD → CO → MO Outline 20P4K |
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