Please note:  If you wish to place an international order with us, please email us at the address above with your requirements and full contact details and we will be happy to send you a quotation.

LDxCHA Series

The LDxCHA product family has current levels from 2.5 A up to 15 A. The following models are available: LD2.5CHA (2.5A), LD5CHA (5A), LD10ACH (10A), LD15CHA (15).

Additional information

  • 2.5, 5, 10 & 15 A Output Options
  • Single supply operation at +5 VDC for single emitters (3 V maximum to laser)
  • Dual supply operation up to +30 VDC (28 V maximum to laser)
  • Constant Current or Constant Power Mode
  • Adjustable clipping current limit
  • Slow-start and delay circuitry
  • Brownout protection
  • Over-voltage protection
  • Bandwidth 600-1080 kHz (3 dB at Full Current, Constant Current Mode, Sinewave) - model dependent
  • RMS Noise Current 7 - 35 μA at 100 kHz - model dependent

These drivers meet laser compliance requirements from 3 V with a single 5 V supply, and up to 28 V with an additional 30 V power supply, supporting applications such as materials processing, industrial laser cutting, and laser diode bars / stacks. This product family supports A & B type laser diodes.


The LDxCHA drivers, with their small size and easy mountability, can be attached directly to an optics table or designed into a system. Two trimpots set the current limit and current setpoint, while five spring loaded terminal blocks allow for simple wiring.


Built-in safety features ensure robust designs for real world operating conditions: clipping current limit ensures that the output current will never exceed the setpoint; and slow start circuit ramps the output current. Long‑term reliability means better up-time, fewer service calls, and more satisfied customers.


Thoughtfully designed features provide valuable benefits and protect the laser against operational anomalies.


+44 (0) 1829 773155

Secure payments with PayPal

PayPal and all major credit cards accepted.

Next day delivery for UK webshop orders received before 12 noon, subject to stock availability.

All prices shown exclude VAT and delivery.

Delivery charge for UK webshop orders - £8.50 excl VAT.

Non-UK orders - Delivery is based on weight of order.

Non-UK orders - Local import duties and taxes are not included.