P/N + Description + Content Search

Description
EU-39 is a small and inexpensive Driver board for continues wave (CW) operation. It is suitable for Laser Diodes with external PD input. The output current can be easily adjusted by a potentiometer up to 300 mA. The Laser Diode output power is independent from the supply voltage.

• Laser Diode Driver
• Supported Laser Diodes without external PD input
• Adjustable Laser Diode current, up to 300 mA
• Laser Diode output power independent from support voltage

650nm Diode Laser Module

Multi purpose, high quality, low cost red Laser Diode module. Driver electronics already included. Laser class 3R device

635nm Diode Laser Module

Multi purpose, high quality, low cost red Laser Diode module. Driver electronics already included. Laser class II device

635nm Diode Laser Module

Multi purpose, high quality, low cost red Laser Diode line generating module. Driver electronics already included. Laser class IIIA device

650nm Diode Laser Module

Multi purpose, high quality, low cost red Laser Diode module. Driver electronics already included.
Laser class II device

650nm Diode Laser Module

Multi purpose, high quality, low cost red Laser Diode module. Driver electronics included. Collimated beam output. Laser class II device

650nm Diode Line Laser Module

Multi purpose, high quality, low cost red Laser Diode line generating module. Driver electronics already included. Laser class II device

Pulsed Laser Diode module
Compact, pulsed Laser Diode Driver module

Features
● Built-in pulsed Laser Diode (Hamamatsu L7055-02)
● Compact size
● Easy handling: single +5 V supply operation
● Laser oscillation by external pulse

Applications
● Laser radars
● Fiber optic measurement systems
● Optical measurement equipment

■ General description ELM185xB is a bipolar type Laser Diode Driver IC with internal APC circuit which consists of a reference voltage source, an error amplifier, and a thermal shutdown circuit for protection. With reference voltage source, the output of Laser is comparatively stable during the change of power voltage and temperature. With its small package, ELM185xB is possible to be assembled within small areas on the board. When control loop damage occurs, ELM185xB is also capable of limiting the Laser drive current; limited current value can be adjusted by an external resister on ILM. KLD output drive current can reach up to 400mA (max.). For avoidance of damage of Laser Diode, the Zener Diode which is included in ELM185xB is able to absorb 8V surge between VCC-GND. 
ELM185xB is able to drive various types of Laser Diode modules (LDM); please refer to applicable Laser Diode modules for further information. ELM185xB can not only drive Laser Diode by APC control, but also by constant current with internal constant current setup function; therefore, ELM185xB can also be used as constant current Driver for Laser Diode, high luminous LED, etc.

■ Features
• Low voltage operation : 2.0V
• Low current consumption operation : Typ.1mA
• Laser drive current : Max.400mA
• Internal voltage reference : Typ.0.30V
• Thermal shutdown circuit : Typ.150°C
• Package : SOT-26
• Zener Diode for surge absorption included

■ Application
• Driver for Laser Diode in Laser pointer, Laser level, etc.
• Driver for constant load current such as LED, etc.

FEATURES
♦ Laser Diode Driver for continuous and pulsed operation (CW to
   300 kHz) up to 250 mA
♦ Averaging control of Laser power
♦ Simple adjustment of the Laser power via external resistor
♦ Adjustable watchdog at the switching input to protect the Laser
   diode
♦ Soft-start after power-on
♦ Driver shutdown with overtemperature and undervoltage
♦ Single 5 V supply
♦ Simple circuitry
♦ iC-WJ for Laser Diodes with 50 to 500 µA monitor current
♦ iC-WJZ for Laser Diodes with 0.15 to 1.5 mA monitor current

APPLICATIONS
♦ General purpose Laser Diode
   driver