LD-P Series LD Light Source Controller

Product Description

• The LD light source controller is compatible with 2-pin and 3-pin LD laser diodes.
• TO-18 and TO-5 laser diodes are available as optional accessories.
• Diode mounts with SM1/SM05 threads are provided.

The LD light source controller can adjust the frequency and brightness of LD laser diodes via an external pulse signal (PWM). The frequency range is 0–5 kHz, and the duty cycle range is 0–100%.

 

LD Light Source Controller
Model	Output Current	Brightness Adjustment	PWM Control
LD-P-3A	3A	Not Adjustable	Supported
LD-P-1.8A	1.8A
LD-P-0.75A	0.75A
LD-PX-600	600mA	Adjustable
LD-PX-380	380mA
LD-PX-250	250mA
LD-PX-190	190mA
LD-PX-112	112mA
LD-PX-84	84mA
LD-PX-53	53mA

 

Laser Diode
Diode Type	Wavelength	Output Power	Input Current	Brand
TO-18 (Ø5.6mm)	405nm	80mW	80–90mA	SONY
	488nm	80mW	80–90mA	—
	505nm	10mW	60mA	Sharp
	515nm	10mW	60mA	Sharp
	520nm	30mW	110mA	Sharp
	650nm	100mW	130mA	Mitsubishi
	660nm	130mW	250mA	Mitsubishi
	780nm	100mW	110mA	ROHM
	808nm	30mW	360mA	Huaguang
	830nm	210mW	240mA	Sharp
TO-5 (Ø9mm)	450nm	3.75W	3.75A	Nichia
	638nm	1.2W	1.2A	Mitsubishi
	520nm	1.0W	1A	Mitsubishi

 

Diode Mount
Model	Mounting Aperture	Thread Type	Weight	Material
SM05-TO18	Ø5.6mm	SM05 Male Thread	1.7g	7075 Aluminum Alloy
SM1-TO18	—	SM1 Male Thread	9.2g	—
SM05-TO5	Ø9mm	SM05 Male Thread	1.2g	—
SM1-TO5	—	SM1 Male Thread	8.7g	—

Technical Specifications

 

The unique emission principle and generation process of laser light endow it with characteristics not found in ordinary light: excellent monochromaticity, coherence, directionality, and high brightness. Oeabt offers laser diodes in two packages—TO-18 and TO-5—with different output characteristics (power, wavelength, beam size, shape, etc.), for use with the LD light source controller.

The diode mount is mainly used to install TO-18 and TO-5 laser diodes, featuring SM05 (0.535″-40) or SM1 (1.035″-40) threads. It facilitates alignment between the laser diode and the optical ax

is of the lens sleeve, enabling assembly of SM-threaded components. The diode can be fixed with the supplied retaining ring.

The LD light source controller is an LD driver with flexible operation, wide compatibility with laser diode specifications, and high control precision. It integrates driving and control functions, and its output interface is compatible with 2-pin and 3-pin LD laser diodes—different light sources can be switched simply by replacing the laser diode. It supports a wide input voltage range of 12–24 V DC, with a maximum output current of 3 A. It is ideal for high-precision, stable applications requiring multiple light sources.

Interface	Specification	Pin/Definition	Remarks
12V DC Connector	DC 12V–24V	DC 5.5-2.1	—
PWM Input Connector	Max: 6V, Min: 2.8VFrequency: 0–5 kHz	SMA Connector	SMA center pin: PWM positive;outer thread: PWM negative
Output Connector	Max: refer to model;Min: 0 mAFrequency: 0–5 kHz	Pin 1: LD+; Pin 2: LD-;Pin 3: PD/NC	XH2.54-3P connector;pin order left to right
Mode Switch	Continuous Wave (CW) ModePulse Control (PULSE) Mode	—	Slide switch to labeled position
Current Adjustment	Max: refer to model;Min: 0 mA	—	Clockwise: increase output current;Counterclockwise: decrease output current;minimum output: 0

1. Main Features of the Controller:

• Adjust the frequency and brightness of LD laser diodes via an external PWM signal; frequency range 0–5 kHz, duty cycle range 0–100%.
• Adjust light source brightness via external current adjustment.
• The housing uses a large-volume aluminum heat sink, ensuring stable and reliable output current even at full power.

 

Parameter		Minimum	Recommended	Maximum
Input Voltage	—	6V	12V	24V
Input Current	—	1.2A	1.5A	3A
PWM Signal	VH	2.8V	5V	6V
	VL	0V	0V	0.7V
Output Current	—	0A	—	Model-specific rating

Accessories

LD light source controller, connecting cable, 12V power supply

Assembly

Application Examples

 

Engineering Drawings

LED-P Engineering Drawing